• Author / Uploaded
• Samuel

Citation preview

Size

530

530

Shaft Ø

500

502

Serial No.

71809

71809

Drawing No.

SAC:3-567-0249-000.2

SAC:3-667-0231-000.0

Sealing rings

1: Ps; 2: Vb; 3: Vb; 3R: Vb

v1: Vb; v2: Vb

*Blohm+Voss Industries Order No.:

1082109

*Building Yard:

HYUNDAI MIPO DOCKYARD

*Hull-No / *IMO-No.:

2049

*Name of Ship:

HYUNDAI MIPO 2049

9386861

SIMPLEX-COMPACT Seal Aft seal: Forward seal:

SC2 MZ SC2 Z

Operating Manual

* Above particulars must be stated when ordering spare parts!

- Sterntube Seals

CONTENTS

• Front Cover with Order Data • Contents of Technical Manual

PART 0

SAFETY

• General Notes and Safety Instructions

PART 1

TRANSPORT / STORAGE

• Transportation and Storage Instructions

PART 2

STERNTUBE SEALS

• Installation and Operation Manual

PART 3

OIL LIST

• List of allowed Oil Brands

PART 8

COVER SHEETS

DRAWINGS

• Drawing List • Drawings acc. List

PART 9

• Installation Record

APPENDIX

• General Instructios for Ordering Spare Parts

PART 10

• Service Stations - Worldwide

Blohm + Voss Industries GmbH P.O. Box 11 22 89, D-20422 Hamburg Rev. 28.12.2006

E_CONTENTS.DOC

Simplex-Compact – General and Safety Contents

Allgemeines und Sicherheit

0

28.10.2005

Simplex-Compact

Contents 0

Contents ........................................................................................................1

1

General ..........................................................................................................2 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9

2

Explanation of symbols......................................................................................... 2 Special notation used ............................................................................................ 2 Information regarding the operating manual ...................................................... 3 Equally applicable documents.............................................................................. 3 Liability and warranty ............................................................................................ 3 Copyright protection.............................................................................................. 4 Delivery ................................................................................................................... 4 Spare parts ............................................................................................................. 5 Disposal .................................................................................................................. 5

Safety .............................................................................................................6 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8

Intended use ........................................................................................................... 6 Contents of the operating manual........................................................................ 7 Changes and conversions to the equipment ...................................................... 7 Responsibility of the customer............................................................................. 7 Requirements of the personnel ............................................................................ 8 Work Safety ............................................................................................................ 8 Personal protective gear ....................................................................................... 9 Dangers that can arise from the equipment ...................................................... 10

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Simplex-Compact – General and Safety General

1

General

1.1

Explanation of symbols Important safety-related notes in this operating manual are identified by symbols. The notes stated regarding work safety must definitely be adhered to and complied with. Conduct yourself with particular care in these cases to avoid accidents, personal injury and property damage.

WARNING! Danger of injury or mortal danger! This symbol identifies notes that, if not complied with, can lead to health impairment, injuries, permanent bodily damage or to death.

WARNING! Danger from electric current! This symbol identifies notes that, if not complied with, can lead to health impairment, injuries, permanent bodily damage or to death.

ATTENTION! Danger to material assets! This symbol identifies notes that, if not complied with, can lead to damage, malfunctions and/or breakdown of the equipment.

NOTE! This symbol labels tips and information that must be observed to ensure efficient and trouble-free handling of the equipment.

1.2

Special notation used •

The numbers in brackets ( ) mark the position numbers of the relevant drawings.

•

Information in square brackets [ ] mark project specific nominal/target dimensions, the actual values can differ from this.

•

Bold printed designations refer to the name of the component as it is entered in circuit diagrams and schemes.

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1.3

Information regarding the operating manual This operating manual describes how to handle the equipment safely and correctly. The safety notes and instructions stated, as well as the local accident prevention guidelines applicable for the area of use and general safety conditions must be observed. Before starting any work on the equipment, read through the operating manual completely, in particular the chapter on Safety and the corresponding safety notes. You must have understood what you have read. The operating manual is a component of the equipment. It must be kept accessible at all times in close proximity to the equipment (e.g. in the machine control room, general control rooms). The operating manual must always be passed on to third parties with the equipment.

1.4

Equally applicable documents Components from other manufacturers have been built into the equipment (e.g. drive motors, measuring equipment). The risk assessment for these purchased components and the obligation to ensure that their design is in compliance with the applicable European and national regulations is incumbent on the manufacturers of said components. The operating, maintenance and repair manuals from these manufacturers for relevant equipment components are inseparable components of this equipment documentation. The instructions contained in the manufacturer documentation regarding safety, set-up and installation, as well as operation, maintenance, dismantling and disposal of the components are to be followed without limitation by the personnel operating the equipment.

1.5

Liability and warranty All information and notes in this operating manual were collated while taking into consideration the applicable regulations, the status of technology and our many years of discoveries and experiences. The operating manual must be kept accessible at all times in direct proximity to the equipment for all persons who are working on or with the equipment.

ATTENTION! Danger to material assets! Read through this operating manual carefully before starting any work on or with the equipment! The manufacturer assumes no liability for damages and disruptions that arise from non-compliance with the operating manual.

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The German version of this operating manual is the authoritative version. Translations of the operating manual were also created to the best of our knowledge. However, we cannot assume liability for any translation errors. The texts and illustrations do not necessarily correspond to the scope of delivery. The drawings and graphics do not correspond to a ratio of 1:1. In the case of special designs, or when additional order options have been taken advantage of, or as a result of state-of-the-art technical changes, the actual scope of delivery can deviate under certain circumstances from the information and notes described in this manual and may also deviate from the illustrative representations. If you have any questions, please contact the manufacturer. We reserve the right to make technical changes to the product within the context of improving user features and further development.

1.6

Copyright protection The operating manual must be treated as confidential. It is determined exclusively for those persons working on and with the equipment. All content-related information, texts, drawings, pictures and other representations are protected as defined by copyright protection law and are subject to other industrial property rights. Any improper utilization is liable to prosecution. It is not permitted to pass on the operating manual to third parties, to make reproductions in whatever type or form - even extracts - or to recycle and/or communicate the contents without written permission by B+V Industrietechnik GmbH (manufacturer). Violations incur the obligation to pay compensation. All other rights reserved. We reserve the right to exercise industrial property rights.

1.7

Delivery Examine the delivery on receipt for transport damage. Report any damage immediately to the carrier and make a note of it on the delivery note. Check the scope of delivery immediately for completeness. Contact the manufacturer as soon as possible if any parts are missing.

ATTENTION! Danger to material assets! Only operate the equipment with parts that belong to the scope of delivery.

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1.8

Spare parts Only use original spare parts from the manufacturer.

ATTENTION! Danger to material assets! Wrong or faulty spare parts can lead to damage, malfunctions or complete breakdown of the equipment. If you use non-released spare parts, all guarantee, service, compensation and liability claims against the manufacturer or his agents, dealers and representatives become null and void.

1.9

Disposal As long as no agreement has been made regarding return or disposal, dismantled components are to be recycled following appropriate dismantling: •

Scrap metal material remains

•

Take plastic elements to plastics recycling

•

Dispose of remaining components that are sorted according to material composition

ATTENTION! Danger to material assets! Electrical scrap, electronic components, lubricants and other auxiliary substances as well as some metals (e.g. cadmium) are subject to hazardous waste treatment and may only be disposed of by permitted specialist companies!

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Simplex-Compact – General and Safety Safety

2

Safety At the time of its development and manufacture, the equipment was built according to applicable, recognized rules of technology and is considered to be safe to operate. However, risks can arise from this equipment if it is not used by appropriately trained personnel, or if it is operated incorrectly or not according to the intended use. The Chapter "Safety" gives an overview of all important safety aspects for the optimum protection of persons and the safe, trouble-free operation of the equipment. In addition to this, the other chapters in this operating manual contain concrete safety notes identified by symbols to avert danger. Furthermore, pictograms, signs and labels located on the equipment must be observed. This means that they may not be removed and must be kept in a good, legible condition.

2.1

Intended use The seal supplied (also referred to as "equipment" in the following) is used exclusively to seal rotating ship shafts against water or oil.

Operational safety is only guaranteed if the equipment is used according to the intended use.

ATTENTION! Danger to material assets! Any use that goes beyond the intended use and/or any other use of the equipment is prohibited and is not considered intended use. Claims of any kind against the manufacturer and/or his representatives that arise from damage due to non-intended use of the equipment are excluded. The customer is solely liable for any damage arising from non-intended use. Intended use also includes correct adherence to the operating conditions as well as the information and instructions of this operating manual. The equipment may only be operated with the parts listed in the scope of delivery.

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2.2

Contents of the operating manual Each person authorized to carry out work on or with the equipment must have read and understood the operating manual before starting work on the equipment. This also applies if the relevant person has already worked with this kind of equipment or similar equipment or if that person was trained by the manufacturer. Knowledge of the contents of the operating manual is one of the prerequisites to protect personnel against danger, and to avoid errors so that the equipment is operated safely and trouble-free. The customer is recommended to get confirmation proving that personnel have acknowledged the contents of the operational manual.

2.3

Changes and conversions to the equipment To avoid danger and to ensure optimum performance, no changes or attachments and conversions are allowed to be carried out on the equipment which have not been explicitly authorized by the manufacturer. All pictograms, signs and labels located on the equipment must be kept in a good, legible condition and may not be removed. Pictograms, signs and labels that have been damaged or become illegible are to be replaced as soon as possible.

2.4

Responsibility of the customer This operating manual must be kept in direct proximity to the equipment (e.g. in the machine control room, general control rooms) and must be accessible at all time to persons working on and with the equipment. The equipment may only be operated in technically perfect and operationally safe condition. Before commissioning the equipment, it must be checked for integrity and all control indicators must be checked to make sure they are fault-free. Observe the information in the operating manual completely and without limitation! Together with the safety notes and instructions stated in this operating manual, the local accident prevention guidelines applicable for the area in which the equipment is used and the general safety guidelines as well as the applicable environmental protection conditions must be adhered to and complied with. The customer and the personnel authorized by him are responsible for the trouble-free operation of the equipment and for clear allocation of responsibilities with regard to installation, operation, servicing and cleaning the equipment.

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2.5

Requirements of the personnel Only authorized and trained expert personnel may work on and with the equipment. Personnel must have received instruction regarding potential dangers. Expert personnel is defined as whoever can assess the work allocated to him and recognize potential dangers based on his expert training, knowledge and experience, as well as his knowledge of pertinent conditions. If personnel do not have the necessary knowledge, they must be trained. Responsibilities for work on and with the equipment (installation, operation, servicing and maintenance) must be clearly determined and adhered to, so that there is no unclear distribution of competency with regard to safety. Only those persons who can be expected to work reliably may work on and with the equipment. Avoid any mode of operation that impairs the safety of persons, the environment or the equipment. Persons who are under the influence of drugs, alcohol or reaction-impairing medication must never work on or with the equipment. When selecting personnel, the age- and profession-related regulations applicable at the place where the equipment is being used are to be observed. The customer must also make sure that non-authorized persons are kept a sufficiently safe distance away from the equipment. Personnel are obliged to report to the customer immediately about any changes to the equipment that impair safety.

2.6

Work Safety Personal injuries and material damage during work with and on the equipment can be avoided by following the safety notes and instructions stated in this operating manual. Non-compliance with these notes can lead to persons being endangered and damage to or destruction of the equipment. If the safety notes and instructions stated in this operating manual and the accident prevention guidelines applicable for the place of use and general safety conditions are not complied with, then all liability obligations and claims for damage compensation against the manufacturer or his representatives are excluded.

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Simplex-Compact – General and Safety Safety

2.7

Personal protective gear The following should be worn when working on and with the equipment, in line with the work at hand:

Protective work clothing Close-fitting work clothing (low tear-resistance, no wide sleeves, no rings or other jewellery, etc.)

Safety shoes To protect against heavy, falling parts and slipping on slippery floors.

Protective gloves To protect the skin against friction, abrasions, piercing and deeper injuries to the hands and to protect against contact with health-harming substances.

Safety helmet To protect against falling and flying parts and materials.

Protective goggles To protect eyes against flying parts and fluids.

Ear defenders To protect against damage to hearing.

Respiratory protection To protect against harmful gases, vapours, dusts and similar materials and media.

Other chapters in this operating manual contain concrete information at corresponding points regarding the personal protective gear to be worn.

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2.8

Dangers that can arise from the equipment The construction and design of the equipment corresponds to the current status of technology. The equipment is operationally reliable and safe when operated in accordance with the intended use. Nevertheless, there is still a residual risk!

The appliance works with high electrical voltage.

WARNING! Danger from electric current! Electrical energy can cause very severe injuries. If the insulation or individual components are damaged, there is a mortal danger from the electric current. •

Before servicing, cleaning and repair work, turn off the main switch and secure against being switched on again.

•

De-energize equipment for all work on the electrical system.

•

Do not remove any safety features or deactivate them through changes.

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Simplex-Seals – Instructions Transportation and Storage

Transport und Lagerung

24.11.2006

Instructions

1

Transportation

1.1

Packing of Seals and Auxiliaries

Simplex-Seals

All seal housings except these made from bronze are protected with a primer. The seals are supported with wooden blocks at the flange ring and laid down horizontally on a pallet. Each seal is sealed together with desiccant in a plastic bag to avoid rust.

CAUTION! Handle with care! The S.C.-seal may only be taken from its plastic bag just before commencing with the installation.

NOTE! The wood blocks which are provided on the housing flange for the protection of the liner can be removed later. Each seal is laid on the pallet and packed in a cardboard box, for special transports sometimes in wooden boxes also. Auxiliaries as bolts, tanks, valves and fittings are also packed in a cardboard box. Electronic and Pneumatic Panels are ready painted and packed in a cardboard box on a pallet also.

1.2

Handling of Equipment CAUTION! Handle with care! The equipment is susceptible to damage.

As the delivered equipment has a moderate weight, this can be handled by fork lifter. Therefore lift it with the forks from the bottom side of the pallet.

CAUTION! Handle with care! Do not move the boxes on the pallet by fork lifter.

If needed, the boxes can be lifted by lugs. Therefore lift it always together with the pallets.

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Simplex-Seals – Instructions Transportation and Storage

CAUTION! Handle with care! Use suitable and approved lifting devices only.

1.3

Transport of Equipment CAUTION! Handle with care!

1.4

•

Protect the equipment against solar radiation and other influence of the weather.

•

Transport the boxes always horizontal on their pallets.

•

Secure the boxes together with their pallets against slip.

(Intermediate-) Storage Protect the Equipment during any storage, both during intermediate storage during transport and storage after delivery prior to installation.

CAUTION! Handle with care! Protect the equipment against: •

solar radiation, and rain

•

other influence of the weather as cold and moisture

•

mechanical load.

NOTE! It is recommended to store the equipment in darkened warehouses with hard roof and heating.

1.5

Delivery of Equipment Examine the delivery on receipt for transport damage. Report any damage immediately to the carrier and make a note of it on the delivery note. Check the scope of delivery immediately for completeness. Contact the manufacturer as soon as possible if any parts are missing.

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Simplex-Seals – Instructions Transportation and Storage

2

General Instructions for Storage of Sterntube Seals CAUTION! Handle with care! Disassembly and mounting of the sterntube seals must be carried out by trained personnel only.

2.1

Short time storage For storing the seal the following must be considered for a period of up to 6 months between delivery ex works and installation on board the vessel:

2.2

•

The seal must be left packed.

•

The plastic bag may only be opened just before installation on board.

•

The packed seal should be stored dry at an ambient temperature between +15°C and +25°C until the transport on board for installation.

•

The storing position of the cases must be taken into account.

Long-term storage If it is obvious that storing of the part will exceed 6 months, the seal must be special packed. For this (in addition to the measures mentioned above): •

The seals must be disassembled.

•

The liner has to be removed and packed separately in a closed plastic bag (with dry cells). The liner must be stored vertically.

•

All elastomers to be removed and stored separately as mentioned in our “General Instructions for Long-Term Storage of Rubber Spare Parts”. For this purpose (among other things) the sealing rings must be stored within their original package (from BVI) with inner and outer supporting ring).

CAUTION! Handle with care! Under the conditions mentioned above, Ceramic coated liners can be used within a storage time of max. 2 years, after this period the coating must be renewed by the maker.

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Simplex-Seals – Instructions Transportation and Storage

2.3

Long-term installation time If the seal is assembled to the ship, but the ship is under construction for a period longer than 6 months without being afloat special care must be taken: •

The free surface of the forward liner must be coated with grease (i.e. SHELL Alvania EP2 or high viscosity oil) to avoid rust on cast iron liner.

•

Fill up all seal chambers with oil (also chamber 1 at aft seal).

•

The area between liner flange and seal housing of aft and forward seal should be protected by foam, fixed with tape.

•

The seals must be sufficient protected against dirt (i.e. paint and sandblasting).

Before launching:

3

•

Remove grease or any protection from seals.

•

The seals must be opened and the condition of the sealing rings must be checked by BVI engineer. If they are no longer suitable for operation, they have to be renewed by bonding.

•

Fill up all chambers and tanks with oil.

General Instructions for Long-Term Storage of Rubber Spare Parts (Sealing Rings, Rubber Rings)

On condition that the sealing rings are properly stored as described below, Perbunan sealing rings can be used within a storage time of 4 years and Viton sealing rings can be used within a storage time of 6 years.

CAUTION! Handle with care! A non-compliance of these instructions will result in a reduced service life of the sealing rings.

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Simplex-Seals – Instructions Transportation and Storage

3.1

Packing Conditions The sealing rings and rubber rings have to be stored tension-free without generating any stresses in order to avoid any deformation as well as resulting cracks.

3.2

•

The sealing rings must be stored within their original package (with inner and outer supporting ring).

•

They must be stored in a horizontally position.

•

The rubber products must be packed into paper, polyethylene or polyamide.

Store Conditions The store shall be cool, dry, dust free and moderately ventilated under the following conditions:

Temperature: Between -50° and -10°C each sealing ring must be stored individually (not in a pile) in order to avoid stress from top. Between -10° and +25°C sealing rings can be stored piled up (one upon another). Higher temperatures than +25°C are allowed for short periods only. When removing sealing rings from storage take special care not to deform them. Before installation, all rubber products need to be warmed up to at least 5°to 10°C . Humidity: Storage in damp stores is not allowed and condensation absolutely must be avoided. The recommended relative humidity is 65 % . Heating: In heated stores the sealing and rubber rings have to be protected from the source of heating. The distance between source of heating and rubber products shall be 1 m minimum. In heated stores having forced (ventilated) heating a greater distance is requested. Lighting: The sealing and rubber rings have to be protected from direct sunlight and strong artificial light having a high ultra-violet content. The windows of the store therefore have to be provided with red or orange protective coating (by no means blue). Lighting by normal bulbs is preferred. Ozone: Ozone has a highly negative effect on rubber materials. Therefore the store may not have any ozone-producing installations such as electrical discharges. Others: Detergents, petrol, lubricants, chemicals, acids and disinfection materials may not be stored together with the sealing rings and rubber rings.

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SC2 MZ + SC2 Z – Installation and Operating Manual CONTENTS

SC2 MZ + Z

04.01.2007

0

Installation and Operating Manual

SC2 MZ+SC2 Z

CONTENTS 0

CONTENTS ....................................................................................................1

1

GENERAL DESCRIPTION.............................................................................4 1.1 1.2 1.3 1.4

Sterntube Sealing System ..................................................... 4 Aft Simplex-Compact Seal .................................................................................... 5 Forward Simplex Compact Seal ........................................................................... 7 Sterntube Lubrication System with Seals ........................................................... 9

1.4.1 1.4.2 1.4.3 1.4.4 1.4.5 1.4.6 1.4.7 1.4.8

2

Arrangement of Sterntube .................................................................................................9 Arrangement of Gravity Tank and Emergency Tank.......................................................10 Arrangement of Sterntube Lubrication Oil Diagram (natural Circulation)........................11 Arrangement of Sterntube Lubrication Oil Diagram (forced Circulation).........................13 Height Calculation of Gravity Tank..................................................................................15 Oil Supply at aft S.C. Seal ...............................................................................................16 Height Calculation of aft Seal Tank .................................................................................18 Oil Supply of forward Seal...............................................................................................20

INSTALLATION............................................................................................22 2.1 2.1.1 2.1.2 2.1.3

2.2 2.2.1 2.2.2 2.2.3

2.3 2.3.1 2.3.2

2.4 2.4.1 2.4.2

2.5 2.5.1 2.5.2 2.5.3 2.5.4 2.5.5

2.6 2.6.1 2.6.2 2.6.3

Installation of Tanks for S.C.-Seals .................................................................... 22 Installation of the aft Seal Oil-Tank with Piping...............................................................22 Pressure Test of Piping within the Sterntube ..................................................................25 Installation of the forward Seal Oil-Tank with Piping.......................................................25

General about Installation of S.C.-Seals ............................................................ 28 Installation Sketch of aft Seal ..........................................................................................29 Installation Sketch of forward Seal ..................................................................................30 Installation of Oil Piping...................................................................................................31

Installation if the Propeller Shaft is drawn-in from the Inside of the Vessel .. 35 Installation of Forward Seal (Shaft from Inside) .............................................................35 Installation of the aft Seal (Shaft from Inside) .................................................................38

Installation if the Propeller Shaft is drawn-in from the Outside of the Vessel42 Installation of aft S.C.-Seal (Shaft from Outside) ...........................................................42 Installation of forward Seal (Shaft from Outside) ...........................................................46

Alignment of aft Liner .......................................................................................... 49 Alignment work on the aft liner ........................................................................................49 Normal Method to realign the aft Seal Liner....................................................................51 Final Securing of fastening Screws at aft Seal................................................................52 Alternative Gasket between Propeller and aft Seal Liner (Optional)...............................54 Electrical Insulation of aft Seal Liner (Optional) ..............................................................55

Alignment of forward Seal................................................................................... 57 Alignment work on the forward liner ................................................................................57 Aligning the clamp ring of the forward liner .....................................................................58 Alignment of the forward Liner ........................................................................................59

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2.6.4 2.6.5

2.7 2.8

Normal Method to realign the forward Seal Liner............................................................60 Final Securing of fastening Screws at forward Seal........................................................61

Measures to be taken after Fitting the S.C.-Seals............................................. 62 Checking the Propeller Shaft Bearing with B+V Wear down Gauge ............... 62

2.8.1 2.8.2 2.8.3

2.9

General............................................................................................................................62 Preparation for Measuring...............................................................................................63 Measuring Procedure ......................................................................................................65

Corrosion Protection ........................................................................................... 66

2.9.1 2.9.2 2.9.3

2.10

General............................................................................................................................66 Ring Anode......................................................................................................................66 Block Anodes (optional) ..................................................................................................68

Coating the S.C-Seals ............................................................................................ 69

2.10.1 2.10.2

3

Anticorrosive Paint at aft Seal .........................................................................................69 Final Paint at forward Seal ..............................................................................................70

COMMISSIONING ........................................................................................71 3.1

Pressure Tests and Filling of Sterntube Seals.................................................. 71

3.1.1 3.1.2

3.2

4

Pressure Test of aft Seal.................................................................................................71 Pressure Test of forward Seal.........................................................................................76

Filling Quantity of the aft and forward S.C.-Seal............................................... 78

OPERATION.................................................................................................79 4.1 4.2 4.3

System Overview for Operation.......................................................................... 79 Preparing the Lubrication System for Operation.............................................. 80 Operation of the Seals ......................................................................................... 80

4.3.1 4.3.2 4.3.3

4.4

5

Normal Operation ............................................................................................................81 Operation when Ring#3 is damaged ...............................................................................82 Emergency Operation (i.e. when Ring#2 is damaged) ...................................................83

Tank Selection at 2 Tank System (optional) ...................................................... 84

MAINTENANCE ...........................................................................................86 5.1

Maintenance of the seal....................................................................................... 86

5.1.1 5.1.2

5.2

Long Term Maintenance of the aft Seal ..........................................................................86 Long Term Maintenance of the forward Seal ..................................................................87

Lubrication Control and Maintenance of the Oil Tanks.................................... 87

5.2.1 5.2.2

5.3

6

General about Lubrication Control ..................................................................................87 Lubrication Control ..........................................................................................................88

Procedure before docking the Ship ................................................................... 92

REPAIR ........................................................................................................93 6.1 6.2

Exchange of the Sealing Rings by Bonding Device ......................................... 93 Use of the Distance Ring (optional) ................................................................... 95

6.2.1 6.2.2

Removing the Distance Ring without any Shaft Work.....................................................96 Afterwards Assembly of Distance Ring without any Shaft Work .....................................98

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SC2 MZ + SC2 Z – Installation and Operating Manual CONTENTS

6.3

Disassembling the complete S.C.-Seals .......................................................... 100

6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6

Designation of Sealing Rings at aft Seal ...................................................................... 100 Preparing the complete aft Seal for Transport to the Workshop.................................. 100 Designation of Sealing Rings at forward Seal.............................................................. 101 Preparing the complete forward Seal for Transport to the Workshop.......................... 102 Removal of Seals if the Shaft is drawn out to the Inside.............................................. 103 Removal of Seals if the Shaft is drawn out to the Outside ........................................... 104

6.4

Exchange the Sealing Rings of S.C.-Seals ...................................................... 106

6.4.1 6.4.2 6.4.3 6.4.4 6.4.5 6.4.6

Disassemble the aft Seal in the Workshop .................................................................. 106 Exchange the Sealing Rings of the aft Seal in the Workshop...................................... 107 Reassemble the aft Seal in the Workshop ................................................................... 108 Disassemble the forward Seal in the Workshop .......................................................... 109 Exchange the Sealing Rings of the forward Seal in the Workshop.............................. 109 Reassemble the forward Seal in the Workshop ........................................................... 110

6.5

Remachining of Liners ...................................................................................... 111

6.5.1 6.5.2 6.5.3 6.5.4 6.5.5

7

Sketch: Skimming of aft Liner....................................................................................... 111 Sketch: Skimming of forward Seal Liner ...................................................................... 112 Table for Skimming of aft and forward Seal Liners ...................................................... 112 Skimming of Liners ....................................................................................................... 113 Shortening the Springs of Sealing Rings ..................................................................... 114

TROUBLESHOOTING ...............................................................................115 7.1 7.2 7.3 7.4 7.5

Naming of Sealing Rings................................................................................... 115 Sterntube (oil filled) ........................................................................................... 116 Emulsion in Sterntube (oil filled) ...................................................................... 118 Aft Seal, Type MZ ............................................................................................... 119 Forward seal, Type Z ......................................................................................... 121

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1

GENERAL DESCRIPTION

1.1

Sterntube Sealing System Types: SC2 MZ + SC2 Z

STERNTUBE

The Sterntube Sealing System consists of an aft seal and a forward seal and must be always viewed as an overall system together with the sterntube and the corresponding tanks.

Fig. 1a:

Aft sterntube seal Type SC2 MZ

Fig. 1b:

Forward sterntube seal Type SC2 Z

The aft seal is located at the aft end of the sterntube, installed between sterntube boss and propeller hub and is operating in the seawater. The forward seal is located at the bow side of the sterntube in the engine room. It is fixed at the forward sterntube boss and on the propeller shaft by a clamp ring. The details abut the aft and forward seal as well as the whole lubrication system is described in this chapter “GENERAL DESCRIPTION”

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1.2

Aft Simplex-Compact Seal Type: SC 2 MZ

Fig. 2:

Aft Seal

Type: SC2 MZ

1

Liner

24

Circulator

2

Flange Ring

38

Intermediate Ring

3

Intermediate Ring

65

Distance Ring (optional)

4

Intermediate Ring

87

Corrosion Protection

5

Cover Ring

#1

Sealing Ring (31)

I

Chamber

#2

Sealing Ring (6)

II

Chamber

#3R Spare Sealing Ring (6)

III

Chamber

#3

Sealing Ring (6)

NOTE! The naming of the sealing rings #1, #2, #3R and #3 is done according to the counting in the sterntube lubrication diagram.

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

The aft S.C.-seal consists essentially of the stationary part, the casing with four sealing rings (31) and (6), and the rotating part, the liner (1) with pertaining zinc anodes (87). The casing itself consists of individual rings which are bolted together (2), (38), (3), (4), (5), between which the four sealing rings (31), (6) are housed. They are arranged in a way that sealing rings #1 (31) and #2 (6) facing against seawater and sealing ring #3R (6) and #3 (6) facing against the sterntube. The sealing ring #1 (31) serves mainly as a dirt deflector, while sealing ring #2 (6) seals against sea water. The seal ring #3 (6) clamped between the housing rings (2) and (38), is the active ring. The seal ring #3R (6) clamped between the housing rings (38) and (4) is a spare ring, which is running without load, due to an external bypass. The spare ring #3R (6) can be activated, when sealing ring #3 (6) is damaged. The aft S.C.-seal is further provided with the special Leakproof-System. This pressure control system mainly consists of a 50 L settling oil tank, which is connected to the chambers II + III of the aft seal by three pipes. The standard oil pressure within the sterntube and the oil chamber is below the ballast water line (BWL) that the water pressure is always higher than the oil pressure. Therefore water will enter the system before oil is getting out. For class requirements an emergency gravity tank above load water line (LWL) is needed.

The specific features of this aft S.C.-seal are as follows: •

The pressure in chamber II (and III) of the S.C.-seal is exactly set by the aft seal 50 L oil tank level; hence any technically relevant pressure variations will not occur.

•

Defined differential pressure and lubrication of the sealing rings at the aft seal. Therefore increased operational reliability of sealing rings (31), (6) and liner (1).

•

Due to an external bypass of chambers II + III via oil pipes and the 50 L oil tank, the chambers II and III are pressurised with the same pressure, meaning there is no differential pressure over the seal ring #3R (6) which is then running as a spare ring. If the seal ring #3 (6) is damaged, the spare ring #3R (6) can be activated by closing the shut off valve Z2 in the oil supply pipe between the 50 L oil tank and the chamber III.

•

A direct pipe connection between the 50 L settling tank and the chamber II + III will ensure a very good functional control of the S.C.-seal.

•

By a circulator which is installed in chamber II an oil circulation is achieved between the 50 L settling tank and chamber II, with the shaft rotating. Any water entering may thus be diverted through the 50 L settling tank into the bilge.

•

By controlling the level and the water contents within the 50 L settling tank conclusions can be drawn about the functional control of the S.C.-seal.

•

Since this system operates independently of any other source of energy, a power failure will not affect the pressure conditions prevailing in the S.C.-seal.

There are three separate oil pipes (supply, return and bypass) in the sterntube needed between aft seal tank and aft seal for connecting chamber II + III

Further details relating to individual parts and materials, from which the S.C.-seal is made are shown in the enclosed parts list.

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.3

Forward Simplex Compact Seal Type: SC 2 Z

Fig. 3:

Forward Seal

Type: SC2 Z

1

Liner

6

Clamp Ring

2

Flange Ring

22

Circulator

Intermediate Ring

V1 V2

Sealing Rings (5)

Cover Ring

X

Chamber

3 4

NOTE! The naming of the sealing rings V1 and V2 is done according to the counting in the sterntube lubrication diagram.

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

The forward S.C.-seal consists essentially of the stationary part, the casing with sealing rings (5), and the rotating part, the liner (1) together with the split clamp ring (6). The casing itself consists of individual rings (2), (3) and (4), which are bolted together. The two sealing rings (5) are shaped similar to those of the aft S.C.-seal, and they are housed between the casing rings (2), (3) and (4). Contrary to the aft S.C.-seal the two sealing rings (5) seal only against oil, i.e. one ring (5) against the sterntube oil, and the other against the oil in the space between the sealing rings (5). When the shaft is rotating a circulator (22) located between the sealing rings (5) ensures that oil is circulated through the respective S.C.-seal header tank. Further details relating to individual parts and materials from which the S.C.-seal is made are given in the enclosed parts list.

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4

Sterntube Lubrication System with Seals

1.4.1

Arrangement of Sterntube The sterntube lubrication system consists mainly of the sterntube, an aft and forward sterntube seal with their accompanying tanks, connecting pipes and valves.

P

Fig. 4:

P SB

FB

FS

PS

SB

Sterntube components

AS AB

AS AB

Aft seal

FS

Forward seal

Aft sterntube bush

FB

Forward sterntube bush

Propeller

PS

Propeller shaft

Propeller shaft Bearing

For lubrication of propeller shaft mounting (sterntube bush) the sterntube is filled with oil. To prevent that oil is leaking, the sterntube is sealed against the propeller shaft at both ends by Simplex-Compact seals (S.C.-seals).

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4.2

Arrangement of Gravity Tank and Emergency Tank To avoid oil entering from the sterntube into the seawater (in case of leaking aft seal), the sterntube is pressurised with oil at a lower pressure than water pressure. This is ensured by setting the corresponding gravity tank to a specific height below BWL. To fulfil the requirements from the Societies, that a sterntube gravity tank must be higher than LWL an emergency tank must be installed. This arrangement enables to pressurise the sterntube with oil at a higher pressure than water pressure. This is ensured by setting the corresponding emergency tank to a specific height above LWL. In addition this emergency tank can be used to avoid water entering into the sterntube in case of damaged aft seal. The tanks should be designed to •

cover the heat expansion of the oil filling in the sterntube

•

compensate a small oil consumption of the aft seal over a longer period as well as

•

get enough capacity for cooling the heat produced within the seal by (surface-) convection.

The actual arrangement of tanks and piping is shown on the schemata „Diagram of Sterntube Lubrication“ in the attached Part “DRAWINGS”.

NOTE! It is recommended to install •

a MIN and MAX Alarm float switch at the gravity tank, and

•

a MIN Alarm float switch at the emergency tank,

which must be connected to the ships alarm system.

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4.3

Arrangement of Sterntube Lubrication Oil Diagram (natural Circulation)

Fig. 5:

Sterntube Lubrication Oil Diagram

Type: SC2 MZ natural Circulation

A

Gravity Tank with high and low level alarm

D

Sump Tank

B

Settling Tank for aft seal

E

Emergency Tank with low level alarm

C

Tank for forward seal

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4.3.1

Gravity Tank Arrangement at natural Circulation At the natural circulation the oil within the sterntube will be heated up by the friction losses in the propeller shaft bushes. The warm oil is flowing upwards in the pipe up to the gravity tank, where it is cooling down by convection. From the gravity tank the cool oil is flowing downwards to the Sterntube close to the aft propeller shaft bushes with the highest heating up.

Fig. 6:

Gravity Tank Arrangement at natural Circulation

Optional at bigger differences between HLWL and HBWL an additional Tank2 should be installed. It will be switched over between these two tanks according to the actual draft. The switch over point is called HSOP.

CAUTION! Handle with care! If the difference H1 - H2 is larger than 8 m, it is recommended, in respect of the lifetime of the sealing rings, to provide a second tank for ballast condition.

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1.4.4

Arrangement of Sterntube Lubrication Oil Diagram (forced Circulation)

Fig. 7:

Sterntube Lubrication Oil Diagram

Type: SC2 MZ forced circulation

A

Gravity Tank with high and low level alarm

D

Sump Tank

B

Settling Tank for aft seal

E

Emergency Tank with low level alarm

C

Tank for forward seal

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4.4.1

Gravity Tank Arrangement at forced Circulation At forced circulation the gravity tank will be continuously overfilled (with oil from the sump tank) by external pumps (excess oil is flowing through the overflow at gravity tank back into the sump tank). From the gravity tank the (cooler) oil is flowing through a falling pipe into the aft sterntube bearing where most heat occurs. From there the heated oil is flowing up in a vent pipe up to an other overflow, which is located 1 m below the oil level in the gravity tank and then it is flowing back into the sump tank.

Fig. 8:

Gravity Tank Arrangement at forced Circulation

The forced circulation within the sterntube follows the physical principle of communicating pipes, in which the fluid level in all pipes is the same. If one pipe end is lowering, this one is overflowing, while the higher end will be always refilled, this results in a continuously circulation. The advantages are the possibility to install an external oil filter and cooler and to have always fresh oil in circulation as well as the fact that the pressure within the sterntube is always at a defined level, even if the pumps fails.

NOTE! A shut off valve should be installed in the overflow line of the sterntube, to avoid a decreasing of the oil level down to the overflow height.

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1.4.5

Height Calculation of Gravity Tank CAUTION! Handle with care! The specified tank heights and pipe arrangements must be followed, this is fundamental for the functionality and lifetime of the aft seal. In general the gravity tank for the sterntube must be installed in a way, that the oil pressure within the sterntube at full loaded vessel (LWL) is 0,25 bar above the water pressure .

NOTE! All heights are in relation to the shaft centre in the area of the aft seal. The height tolerance for tank installation is ± 4%, above this value please contact us.

1.4.5.1

Formula for one Tank System If not mentioned otherwise on the corresponding schemata „Diagram of Sterntube Lubrication“, the installation height of the gravity tank has to be calculated as follows:

Height of Gravity Tank1

H T1 =

HLWL HT1

H LWL × 1,025 0,25 × 10 (m ) + 0,89 0,89 Height of Load Water Line (LWL) Installation height of Gravity Tank T1 for the sterntube.

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4.5.2

Formula for additional second Tank (optional) CAUTION! Handle with care! At a draft difference HLWL - HBWL > 8°m , a second gravity and a second aft seal tank is required. If not mentioned otherwise on the corresponding schemata „Diagram of Sterntube Lubrication“, the installation height of the second gravity tank has to be calculated as follows:

Height of lower Gravity Tank2 (optional):

HT 2 =

HLWL HT2

H SOP × 1,025 0,25 × 10 (m ) + 0,89 0,89

Height of switch over point:

H SOP =

H BWL + H LWL (m ) 2

Height of Load Water Line (LWL)

HBWL

Height of Ballast Water Line (BWL)

Installation height of lower Gravity Tank T2 for the sterntube.

HSOP

Draft where to switch over between the tanks for the Sterntube.

The switch over between the tanks must be done at HSOP, meaning at draft

1.4.6

-

between HLWL and HSOP operate with upper Gravity Tank T1

-

between HSOP and HBWL operate with lower Gravity Tank T2

Oil Supply at aft S.C. Seal Type: SC2 MZ The aft seal is designed for pressure stages between the high pressurised sterntube and the seawater and for lubricating the sealing rings #2, #3R and #3. By using an oil tank installed in the engine room defined pressures are given to the chambers II+III and a constant lubrication with flawless oil is ensured. The chambers II+III are connected with the oil tank of the aft seal, the sterntube is connected to a separate gravity tank. The circulator (22) in chamber II together with the pipes L1, L2 and the settling tank T1 forms a circulating system which exchanges the oil in the chamber II with the oil in the tank T1, driven by the rotating propeller shaft. Any seawater in the chamber II will also be transported into the settling tank T1 where it will be settled and could be easily drained out. These advantages will result in an extension of life time of the sealing rings, especially by reducing the temperature.

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Fig. 9:

Oil Supply at aft S.C. Seal

A

Aft seal

Z1 Z2

Shut of valves for chamber II

Z3

Type: SC2 MZ

O1

Refilling line

L1

Oil pipeline to chamber II

Shut of valve for chamber III

L2

Oil return pipeline from chamber II

Z5

Vent valve

L3

Oil pipeline for chamber III

ZD

Drain Valve

T1

Settling Tank for chamber II and III

ZT

Refilling valve

V1

Vent

CAUTION! Handle with care! When there is no vent line installed for the oil chamber: the oil piping between the aft seal and the aft seal oil tank must always go up to ensure that any trapped air can be vented into the oil tank. It is not allowed to step down with the oil pipe from the oil connection at top side of the aft seal within or outside the sterntube to a lower level.

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4.7

Height Calculation of aft Seal Tank CAUTION! Handle with care! The specified tank heights and pipe arrangements must be followed, this is fundamental for the functionality and lifetime of the aft seal.

NOTE! All heights are in relation to the shaft centre in the area of the aft seal. The height tolerance for tank installation is ± 4%, above this value please contact us. If not otherwise mentioned on the drawing „Diagram of Sterntube Lubrication“, we recommend a pipe outer Ø = 15x1 or 15x1,5 mm.

NOTE! For piping arrangement of ships in arctic water please ask for consultation.

1.4.7.1

Formula for aft Seal Tank System If not otherwise mentioned on the drawing „Diagram of Sterntube Lubrication“, the installation height for the aft seal tank has to be calculated according to the following formula:

NOTE! For a draught HBWL < 3,0 m please ask for consultation.

Height of aft seal Tank1: For 3,0 m ≤ HBWL < 4,5 m use:

H Tank1 =

Tkrs - ø + 0,4 2

For HBWL ≥ 4,5 m use:

(m )

H Tank1 =

HBWL

Height of Ballast Water Line (BWL)

HTank

Installation height of Settling tank for the aft seal.

H BWL × 1,025 0,4 ×10 − 0,89 0,89

(m )

Tkrs-Ø PCD of aft seal flange for fixing bolts

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

1.4.7.2

Formula for two aft Seal Tank System (optional) CAUTION! Handle with care! At a draft difference HLWL - HBWL > 8°m , six tanks are needed: •

an upper and a lower gravity tank as weell as an emergency tank for the sterntube and

•

an upper and a lower aft seal tank as weell as a settling tank for the aft seal chamber II.

If not mentioned otherwise on the corresponding schemata „Diagram of Sterntube Lubrication“, the installation height of the second aft seal tank has to be calculated as follows:

NOTE! For a draught HBWL < 3,5 m please ask for consultation.

Height of lower aft seal Tank1: For 3,5 ≤ HBWL < 4,5 m use:

H Tank1 =

Tkrs - ø + 0,4 2

(m )

Height of upper aft seal Tank1.1:

H Tank 1.1 =

H SOP × 1,025 0,5 × 10 (m ) − 0,89 0,89

For HBWL > 4,5 m use:

H Tank1 =

H BWL × 1,025 0,4 ×10 − 0,89 0,89

(m )

Height of switch over point:

H SOP =

H BWL + H LWL (m ) 2

Height of aft seal settling Tank: The inlet at the 50 L settling tank sould be approx. 100-200 mm below the outlet of lower Tank 1 for the aft seal.

HLWL

Height of Load Water Line (LWL)

HTank1

Installation height of lower Tank 1 for the aft seal.

Tkrs-Ø

PCD of aft seal flange for fixing bolts

HBWL

Height of Ballast Water Line (BWL)

HTank1.1

Installation height of upper Tank 1.1 for the aft seal.

HSOP

Draft where to switch over between the tanks for the aft seal

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SC2 MZ + SC2 Z – Installation and Operating Manual GENERAL DESCRIPTION

The switch over between the tanks must be done at HSOP, meaning at draft:

1.4.8

-

between HBWL and HSOP operate with lower aft seal Tank1

-

between HSOP and HLWL operate with upper aft seal Tank1.1

Oil Supply of forward Seal The forward seal is designed for pressure stages between the high pressurised sterntube against the engine room. It contains two sealing rings facing to the sterntube, which forms an oil filled chamber in which a circulator (22) is installed.

Fig. 10:

Tank arrangement with circulator in chamber of forward seal

The circulator (22) ensures that the volume of oil in the chamber X between the sealing rings of forward seal, by rotation of the propeller shaft during operation, will be permanently circulate without the need for a supplementary lubrication unit. Via the interconnecting pipes to the corresponding tank the oil will be permanently exchanged between oil chamber and tank. From this a good cooling and a constant lubrication of the forward seal with flawless oil is ensured. Simultaneous a deposit of oil residues in way of the sealing ring lips will be avoid. These advantages will result in an extension of life time of the sealing rings, especially by reducing the temperature.

NOTE! It is recommended to install a MIN and MAX Alarm float switch at the tank for the forward seal which must be connected to the ships alarm system.

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1.4.8.1

Height Definition of forward Seal Tank CAUTION! Handle with care! The specified tank heights and pipe arrangements must be followed, this is fundamental for the functionality and lifetime of the forward seal.

The Tank of the forward seal must be arranged in such a way, that the max. oil level in the tank is 0,3m to 0,6m above the top of the housing ring (3) of forward seal.

Fig. 11:

A

Drain plug

T

Forward seal tank

D

Connecting pipes (3x)

O

Overflow

Tank height at forward seal.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2

INSTALLATION

2.1

Installation of Tanks for S.C.-Seals

2.1.1

Installation of the aft Seal Oil-Tank with Piping

NOTE! For tank dimensions and pipe connections please refer to drawing: "Oil-tank for aft seal". •

Prepare the pipes for the connection between tank and aft seal. CAUTION! Handle with care! The oil Pipe must be installed above the shaft sloping downwards from the oil tank to the aft seal without air-locks.

•

Prepare a support at the ship structure for fixing the tank for the oil chamber of the aft seal at the given height. CAUTION! Handle with care! Mount the tank at the installation height mentioned in the drawing “diagram of sterntube lubrication”.

•

Take the oil tank from the transport container, check for any transport damage and finally prepare it for erection.

•

Install the tank for the aft seal at the intended location.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

S

Float switch (optional)

O

Dipstick (with vent)

T

50 L tank

OL

Oil level

max.

Max. Alarm level

A min.

A

Min. Alarm level

A

Drain

U

Overflow

E

Vent

Connections:

Fig. 12:

Oil-tank for the aft seal.

(1)

Oil Inlet

(2)

Overflow

(3)

Oil Supply for chamber II

(4)

Oil return from chamber II

(5)

Oil Supply for chamber III

(6)

Drain

MZ

•

Remove the plastic plugs from oil tank (1), which are fitted for transport only.

•

Fit the pipe bend (15) with its male stud coupling (5) and sealing ring (6) on the top side of the tank (1).

•

Screw in the straight male stud couplings (5) and (6) with its sealing rings (7) and (8) into the connections as shown on the detail drawing of aft seal tank.

•

Build up the piping for the connection from the oil tank through the sterntube to the aft seal.

•

Build up a drain piping to the bilge with funnel below the overflow.

NOTE! We recommend to make the piping from the tank through the sterntube to the aft seal out of Cr steel.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

CAUTION! Handle with care! It is absolutely necessary to install a shut-off valve directly below the oil tank (in the piping between the tank and the aft seal), to avoid an overflow at the oil tank in case of damaged aft seal. CAUTION! Handle with care! Make sure that all pipes (i.e. drain, oil, vent, air or PPA) are connected to the right seal chamber connection, located either at the top or at the bottom of the seal as shown on diagram of sterntube lubrication.

Optional: If equipped with a float switch: •

Fig. 13:

•

Install the float switch at the aft/forward seal tank.

Float switch

Install the cabling to the ship alarm system. WARNING! Danger of electric shock! Any work at the electrical equipment must be done by educated electrician only.

NOTE! For the electrical connections refer to the attached wiring diagrams.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

CAUTION! Handle with care! All connections have to be made at the internal terminal blocks. Check all external cable connections after installation.

2.1.2

Pressure Test of Piping within the Sterntube - The oil pipes with its fittings must be already installed. -

The oil pipes must be fixed in a suitable way.

After Installation of all pipes and valves, before the shaft will be fitted: •

Make a pressure test for the complete piping system at 3 bars with air . CAUTION! Handle with care! The pressure test must be done very conscientious. Keep in mind that there is no way to repair a pipe leakage in the stern tube without dry-docking and removing the shaft after the ship is at sea.

2.1.3

Installation of the forward Seal Oil-Tank with Piping

NOTE! For tank dimensions and pipe connections please refer to drawing: "Oil-tank for forward seal". •

Prepare the pipes and fittings for the connection between tank and aft seal.

•

Prepare a support at the ship structure for fixing the tank for the oil chamber of the forward seal at the given height. CAUTION! Handle with care! Mount the tank at the installation height mentioned in the drawing “diagram of sterntube lubrication”.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

•

Take the oil tank from the transport container, check for any transport damage and finally prepare it for erection.

•

Install the tank for the forward seal at the intended location.

Fig. 14:

S

Float switch (optional)

O

Dipstick

T

15 L tank

D

Piping to forward seal (3x)

A

Drain

U

Overflow

Oil-tank for the forward seal

•

Remove the plastic plugs (3), (4) from oil tank (1), which are fitted for transport only.

•

Fit the overflow pipe (14) with its male stud coupling and sealing ring (16) from the bottom side into the tank (1).

•

Fit the three male stud coupling (11) with their sealing rings (5) from the bottom side into the tank (1).

•

Remove the plastic plugs (23) from housing of the forward seal, which are fitted for transport only.

•

Fit the three male stud coupling (25) with their sealing rings (26) from the top side into the housing of the forward seal.

•

Build up the piping for the connection from the oil tank through the sterntube to the forward seal.

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Optional: If equipped with a float switch: •

Fig. 15:

•

Install the float switch at the aft/forward seal tank.

Float switch

Install the cabling to the ship alarm system. WARNING! Danger of electric shock! Any work at the electrical equipment must be done by educated electrician only.

NOTE! For the electrical connections refer to the attached wiring diagrams. CAUTION! Handle with care! All connections have to be made at the internal terminal blocks. Check all external cable connections after installation.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.2

General about Installation of S.C.-Seals Before installing the S.C.-seals, make the following checks: •

check the entire sterntube system to ensure absolute cleanness.

•

take into consideration the tolerances shown in the S.C.-seal installation drawing and check the connecting dimensions:

•

•

in way of the propeller,

•

the sterntube and

•

the propeller shaft.

Also check whether the design length of the aft and forward S.C.-seal can be kept, if any. CAUTION! Handle with care! Take the S.C.-seal from its plastic bag just before commencing with the installation only.

NOTE! Remove the wood blocks which are provided on the housing flange for the protection of the liner later. CAUTION! Handle with care! Under no circumstances withdraw the S.C.-seal liner (1) from the casing during the installation in order to avoid damage to the surface and to the S.C.-sealing ring lip.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.2.1

Installation Sketch of aft Seal

Fig. 16:

Aft Seal

Type SC2 M

1

Liner

19

Hexagon Screw Locking

2

Flange Ring

20

Transport Clamp

3

Intermediate Ring

21

Hexagon Socket Head Cap Screw

4

Intermediate Ring

22

Hexagon Screw

5

Cover Ring

38

Intermediate Ring

7

Hexagon Screw

55

Hexagon Screw

10

Hexagon Screw

65

Distance Ring (Optional)

14

Hexagon Screw

80

Gasket

15

Wear Down Gauge

81

Gasket

16

Mounting Straps

87

Corrosion Protection

17

O-Ring, (Optional: Washer)

88

Hexagon Screw

18

Safety Wire

#1

Sealing Ring

I

Chamber

#2

Sealing Ring

II

Chamber

III

Chamber

PS

Port Side

#3R Reserve Sealing Ring #3

Sealing Ring

STB Starboard

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.2.2

Installation Sketch of forward Seal

Fig. 17:

Forward Seal Type: SC2 Z

1

Liner

16

O-Ring

2

Flange Ring

17

Hexagon Screw

4

Cover Ring

20

Transport Clamp

6

Clamp Ring

21

Hexagon Socket Head Cap Screw

14

Hexagon Screw

70

Hexagon Screw

15

Hexagon Socket Head Cap Screw

82

Gasket

PS

Port Side

STB Starboard Z

View

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.2.3

Installation of Oil Piping

E

The piping and fittings material for the oil pipes should be made of Stainless Steel.

NOTE! The Stainless Steel fittings should be made of cutting ring type, they have to be fitted by common standard procedure. •

Install piping with valves and fittings from aft seal through the sterntube up to the •

aft seal tank and

•

drain or vent line, if any

in accordance to the “Diagram of Sterntube Lubrication”. CAUTION! Handle with care! The allocation of connections at the aft seal to the pipe line sockets (at the front end of sterntube) must be marked durable, to connect the continuing pipes correctly. CAUTION! Handle with care! All pipes (and valves) must be supported in a suitable way to avoid any damages during operation.

The oil passage through the sterntube could be arranged as shown on the left (proposal).

Fig. 18:

R

Pipe (Stainless Steel)

S

Sterntube

EV

Straight screw connection

WV

Banjo Coupling

Oil passage through sterntube

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CAUTION! Handle with care! It is not allowed to step down with the oil pipe from the oil connection at top side of the aft seal within or outside the sterntube to a lower level.

Fig. 19:

Wrong pipe way for oil supply line

Typical drawing

CAUTION! Handle with care! The oil piping between the aft seal and the aft seal tank must always go up without air locks to ensure that any trapped air can be vented into the oil tank.

E

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The piping between the forward end of the sterntube and the aft seal Settling Tank should be arranged in a way, that the connection for the oil return line L2 at the Settling Tank is higher than the outlet at the forward end of the sterntube. Same for the oil feeding line L1 (it should be above L2). The Oil pipe L3 to chamber III should be installed sloping downwards to the aft seal.

Fig. 20:

Arrangement of aft seal piping

Type MZ, MCZ

T

50 l aft seal Settling Tank

L1

Oil pipeline to chamber II

A

Forward seal

L2

Oil return pipeline from chamber II

S

Sterntube

L3

Oil pipeline to chamber III

O1

Oil refilling

K2

Oil exchange with chamber II

O2

Overflow

K3

Oil supply for chamber III

Z5

Vent valve

PS

Propeller shaft

CL

Propeller shaft centre line

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NOTE! If the actual tank height does not correspond with the height given in the “Diagram of Sterntube Lubrication” please consult the seal design department at Blohm+Voss Industries.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.3

Installation if the Propeller Shaft is drawn-in from the Inside of the Vessel

2.3.1

Installation of Forward Seal (Shaft from Inside) (If the propeller shaft is drawn-in from the inside of the vessel) •

Prepare the propeller shaft in such a way that the forward S.C.-seal can be placed on the shaft.

•

Clean and check for accuracy to size in way of the final position of the liner (1), before pushing the S.C.-seal onto the propeller shaft.

•

Take out the S.C.-seal of the plastic bag and examine for damage sustained during transport.

Fig. 21:

•

Installation of forward seal, if the propeller shaft is drawn-in from the inside.

VA

Forward Seal

S

Sterntube

W

Propeller Shaft

T

Lifting Bracket

Finally draw-in the propeller shaft into position and couple it.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

•

Check the position of the gasket (82) and insert the housing spigot into the sterntube bore.

NOTE! A housing which cannot be centered in the sterntube because of the lack of the recess, or because the sterntube bore is too large, must be aligned with the shaft. After alignment is carried out the housing must be fixed in place by means of two dowel pins. A housing with recess must be slackened off the lifting gear before the holding bolts are finally tightened. •

Secure the casing is by means of two bolts (70), fit but do not fix the tab washers (71). CAUTION! Handle with care! Before the (fastening-) screws (70) will be tighten, the security screws for transport (14) with spacer sleeve (76), if any, must be removed to avoid contact between liner (1) and sterntube bush during assembly. While the liner (1) may not slip out of the seal.

•

Remove the security screws for transport (14) with spacer sleeve (76), if any.

•

Tighten the remaining bolts (70) cross-wise with the tightening torque given on the forward seal drawing. Fix the tab washers (71) after alignment.

•

Lay the clamp ring halves (6) on the shaft, bolt those together by hexagon socket head cap screws (17) (with the clamping sleeves (7) and the serrated lock washers (10)) in a way that the clamp ring halves (6) can be shifted on the propeller shaft.

NOTE! Do not fasten the clamp ring halves (6) by its hexagon socket head cap screws (17) at this stage. •

Adjust the design length of the forward seal according to the forward seal drawing and tighten the hexagon socket head cap screws (17) slightly.

•

Check the true running of the clamp ring (6) in the axial plane and adjust it, if required as described in the chapter below and tighten the hexagon socket head cap screws (17).

•

Release the liner (1) then from the housing and pulled against the clamp ring (6) by means of the socket head cap screws (15), together with the rubber ring (16).

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NOTE! Care must be taken that the rubber ring (16) is fitted correctly. •

Fasten the liner (1) slightly at the clamp ring (6) with socket head cap screws (15) and the serrated lock washers (19).

•

Remove the lifting bracket (20) (replaced by an eyebolt in exceptional cases) and store it onboard, together with the respective fixing bolts (21) and the bolts (14) (with spacer sleeve (76), if any) with which the liner (1) was fixed to the housing.

•

Check the design length of the forward S.C.-seal. CAUTION! Handle with care! The actual installation length after coupling the propeller shaft may not deviate from the installation length given on the accompanied drawing.

•

Check the alignment of the liner (1) and adjust as described in the chapter below, afterwards tighten the hexagon screws (15) with the tightening torque given on the forward seal drawing.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.3.2

Installation of the aft Seal (Shaft from Inside) (If the propeller shaft is drawn-in from the inside of the vessel.) •

Clean and check for accuracy to size in way of the final position of the liner (1), before pushing the S.C.-seal onto the propeller shaft.

•

Take out the S.C.-seal of the plastic bag and examine for damage sustained during transport.

Fig. 22:

Installation of the aft Sea if the propeller shaft is drawn-in from the inside.

HA

Aft Seal

S

Sterntube

P

Propeller

T

Lifting Bracket

W

Propeller Shaft

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

•

Hang the complete aft seal at its lifting bracket (20) into a suitable lifting device.

•

Remove the wood blocks from the casing flange (2).

•

Place the insert rings (30) into the grooves at the inner diameter of the liner (1), if provided.

•

Draw-out the propeller shaft in such a way that the aft S.C.-seal can be placed on the shaft.

•

Coat the sealing surface of the flange ring (2) and distance ring (65) (if intended) and the sterntube boss/adapter ring which will be in contact with the gasket (80) with grease.

•

Put a gasket (80) on the sealing surface of the flange ring (2) and also a gasket (80) on the distance ring (65) (if intended).

•

Put the O-rings (107) into the grooves of the flange ring (2) and fix them with grease, if any.

•

If intended place distance ring (65) with gasket (80) on the shaft and ensure that bores in the casing flange (2) are kept clear when fitting together.

•

Place the aft S.C.-seal assembly with gasket (80) and the fitted liner (1) on the shaft.

•

Place the rubber O-ring (17), if any, and gasket (81) in position on the shaft.

•

Place the gasket (81) on the sealing surface of the liner (1).

•

Draw-out the propeller shaft to its final position and couple it.

•

Put the O-rings (107) into the grooves of the distance ring (65) and fix them with grease, if any.

•

Turn the aft seal in position, while ensuring that bores in the flange ring (2) are matching with the oil/air supply bores in the sterntube boss/adapter ring. CAUTION! Handle with care! It is essential for the function of the aft seal, that the bores in the flange ring (2) are matching with the oil/air supply bores in the sterntube boss/adapter ring and that the O-rings (107) are fitted correctly, otherwise the complete seal may fail.

•

Move the aft S.C.-seal towards the sterntube such that the bores provided in the casing for the wear-down gauge (15) point vertically up and down and the marking “O” (TOP) is visible on the upper side of the housing.

•

Secure the seal casing is by means of two screws (7).

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

NOTE! A housing which cannot be centered in the sterntube because of the lack of the recess, or because the sterntube bore is too large, must be aligned with the shaft. After alignment is carried out the housing must be fixed in place by means of two dowel pins. Housings with recess must be slackened off the lifting gear before the holding bolts are finally tightened. •

Mount and fasten the screws (7) as follows: Case hexagon screws (7) to be secured with chrome-steel wire (18): •

insert the remaining hexagon screws (7),

•

tighten the hexagon screws (7) cross-wise with the tightening torque given on the aft seal drawing,

•

secure it by using chrome-steel wire (18) as described later.

Case screws (7) to be secured with Loctite: •

coat each screw (7) with Loctite 243/245 and insert the screws (7) cross-wise,

•

tighten the screw (7) with the tightening torque given on the aft seal drawing.

•

Same for the two screws (7) fitted at first.

•

Remove the lifting bracket (20) (replaced by an eyebolt in exceptional cases) and store it onboard, together with the respective fixing bolts (21).

•

Seal threaded bores using hexagon screws (22) and hexagon screw locking (19).

•

Remove screws (14) with mounting straps (16) and store them on board.

•

Insert screws (55) with securing washers (60) replacing screws (14) at cover ring (5).

•

Push the liner (1) cautiously into the S.C.-seal casing by a small amount.

•

Coat the sealing surface the propeller boss which will be in contact with the gasket (81) with grease.

•

Place the rubber ring (17), if any and the gasket (81) in position.

•

Mount the propeller, together with the insert ring, if any.

•

Release the liner (1) then from the housing and move it to make contact with the propeller by means of the screws (10), together with the rubber ring (17) or sealing washers (17), whatever provided.

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CAUTION! Handle with care! Care must be taken that the rubber ring (17) is fitted correctly.

•

Fasten the liner (1) slightly at the propeller with screws (10).

•

Check the design length of the aft S.C.-seal. CAUTION! Handle with care! The actual installation length after coupling the propeller shaft may not deviate from the installation length (with tolerances) given on the accompanied drawing.

•

Check the alignment of the liner (1) and adjust it as described in the chapter below.

•

Afterwards, mount and fasten the screws (10) as follows: Case hexagon screws (10) to be secured with chrome-steel wire (18): •

tighten the hexagon screws (10) with the tightening torque given on the aft seal drawing

•

secure the screws by using chrome-steel wire (18) if provided as described later.

Case screws (10) to be secured with Loctite: •

remove each single screws (10) cross-wise,

•

coat the screws (10) with Loctite 243/245 and insert the screws (10) again (with sealing washers (17), if provided),

•

tighten the screws (10) with the tightening torque given on the aft seal drawing.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.4

Installation if the Propeller Shaft is drawn-in from the Outside of the Vessel

2.4.1

Installation of aft S.C.-Seal (Shaft from Outside) (If the propeller shaft is drawn-in from the outside of the vessel) •

Clean and check for accuracy to size in way of the final position of the liner (1), before pushing the S.C.-seal onto the propeller shaft.

•

Take out the S.C.-seal of the plastic bag and examine for damage sustained during transport.

Fig. 23:

Installation of aft seal, if the propeller shaft is drawn-in from the outside.

HA

Aft Seal

S

Sterntube

P

Propeller

T

Lifting Bracket

W

Propeller Shaft

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

•

Hang the complete aft seal at its lifting bracket (20) into a suitable lifting device.

•

Remove the wood blocks from the casing flange (2).

•

Place the insert rings (30) into the grooves at the inner diameter of the liner (1), if provided.

•

Coat the sealing surface of the liner flange (1) which will be in contact with the gasket (81) with grease.

•

Put the gasket (81) on the sealing surface of the liner flange (1) of the aft seal.

•

Place the rubber ring (17), if any, on the shaft move carefully aft.

•

Place the S.C.-seal assembly with gasket (81) and the fitted liner (1) on the shaft and move carefully aft.

•

Coat the sealing surface of the flange ring (2) and distance ring (65) (if intended) and the sterntube boss/adapter ring which will be in contact with the gasket (80) with grease.

•

Put a gasket (80) on the sealing surface of the flange ring (2) and also a gasket (80) on the distance ring (65) (if intended).

•

Put the O-rings (107) into the grooves of the flange ring (2) and fix them with grease, if any.

•

If intended place distance ring (65) with gasket (80) on the shaft, move carefully aft and ensure that bores in the casing flange (2) are kept clear when fitting together.

•

Put the O-rings (107) into the grooves of the distance ring (65) and fix them with grease, if any.

•

Draw-in the propeller shaft in such a way that the forward S.C.-seal can still be placed on the shaft.

NOTE! Place the forward seal above the shaft as described later, if necessary at this stage. •

Turn the aft seal in position, while ensuring that bores in the flange ring (2) are matching with the oil/air supply bores in the sterntube boss/adapter ring. CAUTION! Handle with care! It is essential for the function of the aft seal, that the bores in the flange ring (2) are matching with the oil/air supply bores in the sterntube boss/adapter ring and that the O-rings (107) are fitted correctly, otherwise the complete seal may fail.

•

Move the aft S.C.-seal towards the sterntube such that the bores provided in the casing for the wear-down gauge (15) point vertically up and down and the marking “O” (TOP) is visible on the upper side of the housing.

•

Secure the seal casing is by means of two screws (7).

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

NOTE! A housing which cannot be centered in the sterntube because of the lack of the recess, or because the sterntube bore is too large, must be aligned with the shaft. After alignment is carried out the housing must be fixed in place by means of two dowel pins. Housings with recess must be slackened off the lifting gear before the holding bolts are finally tightened. •

Mount and fasten the screws (7) as follows: Case hexagon screws (7) to be secured with chrome-steel wire (18): •

insert the remaining hexagon screws (7),

•

tighten the hexagon screws (7) cross-wise with the tightening torque given on the aft seal drawing,

•

secure it by using chrome-steel wire (18) as described later.

Case screws (7) to be secured with Loctite: •

coat each screw (7) with Loctite 243/245 and insert the screws (7) cross-wise,

•

tighten the screw (7) with the tightening torque given on the aft seal drawing.

•

Same for the two screws (7) fitted at first.

•

Remove the lifting bracket (20) (replaced by an eyebolt in exceptional cases) and store it onboard, together with the respective fixing bolts (21).

•

Seal threaded bores using hexagon screws (22) and hexagon screw locking (19).

•

Draw-in the propeller shaft close to its final position.

•

Remove screws (14) with mounting straps (16) and store them on board.

•

Insert screws (55) with securing washers (60) replacing screws (14) at cover ring (5).

•

Push the liner (1) cautiously into the S.C.-seal casing by a small amount.

•

Draw-in the propeller shaft to its final position and couple it.

•

Coat the sealing surface the propeller boss which will be in contact with the gasket (81) with grease.

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•

Place the rubber ring (17), if any and the gasket (81) in position.

•

Mount the propeller, together with the insert ring, if any.

•

Release the liner (1) then from the housing and move it to make contact with the propeller by means of the screws (10), together with the rubber ring (17) or sealing washers (17), whatever provided. CAUTION! Handle with care! Care must be taken that the rubber ring (17) is fitted correctly.

•

Fasten the liner (1) slightly at the propeller with screws (10).

•

Check the design length of the aft S.C.-seal. CAUTION! Handle with care! The actual installation length after coupling the propeller shaft may not deviate from the installation length (with tolerances) given on the accompanied drawing.

•

Check the alignment of the liner (1) and adjust it as described in the chapter below.

•

Afterwards, mount and fasten the screws (10) as follows: Case hexagon screws (10) to be secured with chrome-steel wire (18): •

tighten the hexagon screws (10) with the tightening torque given on the aft seal drawing

•

secure the screws by using chrome-steel wire (18) if provided as described later.

Case screws (10) to be secured with Loctite: •

remove each single screws (10) cross-wise,

•

coat the screws (10) with Loctite 243/245 and insert the screws (10) again (with sealing washers (17), if provided),

•

tighten the screws (10) with the tightening torque given on the aft seal drawing.

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.4.2

Installation of forward Seal (Shaft from Outside) (The propeller shaft is drawn-in from the outside of the vessel) •

Drawn-in the propeller shaft in such a way that the forward S.C.-seal can be placed on the shaft.

•

Clean and check for accuracy to size in way of the final position of the liner (1), before pushing the S.C.-seal onto the propeller shaft.

•

Take out the S.C.-seal of the plastic bag and examine for damage sustained during transport.

Fig. 24:

Installation of forward seal, if the propeller shaft is drawn-in from the outside.

VA

Forward Seal

S

Sterntube

W

Propeller Shaft

T

Lifting Bracket

•

Finally draw-in the propeller shaft into position and couple it.

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•

Check the position of the gasket (82) and insert the housing spigot into the sterntube bore.

NOTE! A housing which cannot be centered in the sterntube because of the lack of the recess, or because the sterntube bore is too large, must be aligned with the shaft. After alignment is carried out the housing must be fixed in place by means of two dowel pins. A housing with recess must be slackened off the lifting gear before the holding bolts are finally tightened. •

Secure the casing is by means of two bolts (70), fit but do not fix the tab washers (71). CAUTION! Handle with care! Before the (fastening-) screws (70) will be tighten, the security screws for transport (14) with spacer sleeve (76), if any, must be removed to avoid contact between liner (1) and sterntube bush during assembly. While the liner (1) may not slip out of the seal.

•

Remove the security screws for transport (14) with spacer sleeve (76), if any.

•

Tighten the remaining bolts (70) cross-wise with the tightening torque given on the forward seal drawing. Fix the tab washers (71) after alignment.

•

Lay the clamp ring halves (6) on the shaft, bolt those together by hexagon socket head cap screws (17) (with the clamping sleeves (7) and the serrated lock washers (10)) in a way that the clamp ring halves (6) can be shifted on the propeller shaft.

NOTE! Do not fasten the clamp ring halves (6) by its hexagon socket head cap screws (17) at this stage. •

Adjust the design length of the forward seal according to the forward seal drawing and tighten the hexagon socket head cap screws (17) slightly.

•

Check the true running of the clamp ring (6) in the axial plane and adjust it, if required as described in the chapter below and tighten the hexagon socket head cap screws (17).

•

Release the liner (1) then from the housing and pulled against the clamp ring (6) by means of the socket head cap screws (15), together with the rubber ring (16).

NOTE! Care must be taken that the rubber ring (16) is fitted correctly.

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•

Fasten the liner (1) slightly at the clamp ring (6) with socket head cap screws (15) and the serrated lock washers (19).

•

Remove the lifting bracket (20) (replaced by an eyebolt in exceptional cases) and store it onboard, together with the respective fixing bolts (21) and the bolts (14) (with spacer sleeve (76), if any) with which the liner (1) was fixed to the housing.

•

Check the design length of the forward S.C.-seal. CAUTION! Handle with care! The actual installation length after coupling the propeller shaft may not deviate from the installation length given on the accompanied drawing.

•

Check the alignment of the liner (1) and adjust as described in the chapter below, afterwards tighten the hexagon screws (15) with the tightening torque given on the forward seal drawing.

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2.5

Alignment of aft Liner NOTE! The permissible tolerances are given in data sheet 7-195-1260-000 Dimensions with Tolerances. When measuring the true running, always turn the shaft.

2.5.1

Alignment work on the aft liner

Fig. 25:

True running check at the aft seal

Type SC2 M

NOTE! The measurement for this type should be done in the oil chamber III.

For this, the seal casing must already be mounted on the stern tube, and the shaft must be in its final (coupled) position.

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•

Tighten up four screws (10) of the liner flange, evenly distributed around its circumference, all the way, and the others hand-tight.

•

Apply the marking for “0” on liner flange.

•

Measure the eccentricity with a dial gauge in the aft seal chamber every 45°, and record the values.

NOTE! The shaft must be turned while measuring the eccentricity.

Angle

Your reading:

0° 45° 90° 135° 180° 225° 270° 315° Fig. 26:

•

Measure the eccentricity every 45°.

Mark the minimum and maximum values on the flange of the liner (1).

If the true running measured exceeds the permissible tolerance, re-align the aft liner (1) (leaving the dial gauge attached). To realign the liner (1) proceed as described below:

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2.5.2

Normal Method to realign the aft Seal Liner (Alignment with hammer/drift)

CAUTION! Handle with care! Do not use this method for split liners or ceramic-coated liners!

•

Turn the highest point upwards.

•

Loosen the hex screws (10) (and hex cap socket screws (15), if any) a bit.

•

Hit the liner flange with a lead hammer or an aluminum/copper drift.

•

Watch the dial gauge while aligning the liner (1).

•

Tighten the hex screws (10) (and hex cap socket screws (15), if any) with the correct tightening torque crosswise. Watch the dial gauge. If the liner (1) is not twisted when the screws are tightened, then tighten all the screws. CAUTION! Handle with care! The tightening torque for the hex screws (10) (and hex cap socket screws (15), if any) is given on the assembly drawing and must be followed. Refer to the assembly drawing of aft seal for the correct tightening torque.

•

Measure and record the final eccentricity of liner (1).

NOTE! The form in Section 10 of this documentation should be used for the records. A fax copy for our Service department is desirable

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2.5.3

Final Securing of fastening Screws at aft Seal

NOTE! For an electrically-insulated aft seal liner (1) secure the hex screws (10) using LOCTITE 242/243 instead of chrome-steel wire (see below).

NOTE! For fastening the zinc anodes (87) by bolts (88) refer to Section ”Corrosion Protection”.

2.5.3.1

Securing the Screws at Flange and Liner with Wire

Fig. 27:

Securing the aft seal screws with wire

10

Hex screws

87

Ring anode

18

Safety wire

88

Hex screws

To avoid loosening of the screws (7) and (10) they are provided with a transverse bore at the hexagon heads for using chrome steel safety wire (18) (exceptions are hex screws (10) at electrically-insulated aft seal liners). To secure the hex screws (7) and (10) at aft seal use chrome-steel safety wire (18) proceed as follows:

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NOTE! Always secure two hex screws located next to each other with one wire. Do not overlap the holes for the hex screws (88) of ring anode (87).

1

Install the safety wire (18) between two hex screws (7) / (10). CAUTION! Handle with care! The wire must be installed in such a way that it leaves the hexagon head clockwise in a tangential direction to avoid loosening of hex screws during operation (as shown on the above drawing).

2 • 2.5.3.2

Cut the overlength safety wire (18) and twist the safety wire (18) between the two hex screws (7) / (10) until the safety wire (18) is tight.

Repeat these steps for all screws (7) and (10).

Securing the Screws at aft Seal Liner with Loctite (optional) For an electrically-insulated aft seal liner (1) the hex screws (10) must be secured by using LOCTITE 242/243 instead of chrome-steel wire. This is necessary to avoid electrical connection between the anodes and the propeller.

To secure the hex screws (10) at aft seal with Loctite proceed as follows: For each single screw (10) at aft seal liner (1) 1

Remove screw (10).

2

Coat the thread of screw (10) with Loctite.

3

Ensure that insulating sleeve (85) and Insulating washer (86) are in position.

4

Tighten the screw (10) with the correct tightening torque. CAUTION! Handle with care! Refer to the assembly drawing for the correct tightening torque. The tightening torque for the hex screws (10) is given on the assembly drawing and must be followed.

•

Repeat these steps for all screws (10).

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2.5.4

Alternative Gasket between Propeller and aft Seal Liner (Optional)

Fig. 28:

1

Liner

10

Hexagon screw

17

Akkulon washer

18

Chrome steel wire

30

Centering insert ring

81

Flat packing

Special sealing of Liner Screws

The hexagon screws (10) will be additional sealed by a sealing washers (17), made of Akkulon (Polyamide), if: •

the sealing surface of flat packing (81) is too small in the area of bores for the hexagon screws (10).

•

no O-ring is used between the liner (1) and the propeller, i.e. for controllable pitch propeller because of oil supply under the liner (1) into the propeller hub. CAUTION! Handle with care! The tightening torque for screws with Akkulon washers (17) is much lower than for screws without Akkulon washer (17). Refer to the assembly drawing for the correct tightening torque.

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2.5.5

Electrical Insulation of aft Seal Liner (Optional)

NOTE! The electrical insulation of aft seal liner (1) is valid mainly for those types of S.C.-seal which have a "C" in their designation (i.e. SC2 C) and for seals that needs a special protection.

Fig. 29a:

Electrical Insulation of aft Seal Liner Shaft centered.

Fig. 29b:

Electrical Insulation of aft Seal Liner Propeller centered.

10

Hexagon screw, (secured with Loctite)

10

Hexagon screw, (secured with Loctite)

30

Insulating insert ring

E

Insulating ribbon (glued in)

81

Flat packing

81

Flat packing

85

Insulating sleeve

85

Insulating sleeve

86

Insulating washer (glued in)

86

Insulating washer (glued in)

The electrical insulation of the liner (1) from the propeller and propeller shaft presents an additional protection against corrosion, and contributes to extending the service life of the sacrificial anodes. Insulation of the liner (1) from the shaft is effected by means of two guide strips (30) housed in the bore of the liner (1). The liner (1) is also centered on the shaft by this means.

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NOTE! When the liner (1) is propeller centered, the electrical insulation between the liner (1) and the shaft is carried out by min 1 mm gap and the recess at the liner (1) towards the propeller is designed with a glued-in insulating ribbon. The flat packing (81) prevents contact between the liner (1) and the propeller and, at the same time, it protects the S.C.-seals against entry of water and leakage of oil, respectively. Plastic sleeves (85) and insulating washers (86) in the bolt holes of the liner flange (1) avoid an electrical contact of the hexagon bolts (10) with the liner (1). Therefore the hexagon bolts (10) must be secured with Loctite.

CAUTION! Handle with care! To avoid any short circuit between the insulated liner (1) and the propeller no chrome steel wire is allowed to secure the bolts (10) at the liner flange.

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2.6

Alignment of forward Seal NOTE! The permissible tolerances are given in data sheet 7-195-1260-000 Dimensions with Tolerances. When measuring the true running, always turn the shaft.

2.6.1

Alignment work on the forward liner

Fig. 30:

True running check at the forward seal

Type SC2 Z

NOTE! The measurement for this type should be done first at the axial surface of the fixed clamp ring and second between the liner flange and cover ring of forward seal housing. For this, the seal casing must already be mounted on the stern tube, and the shaft must be in its final (coupled) position.

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2.6.2

Aligning the clamp ring of the forward liner •

Place the halves of the clamp ring (6) with inserted clamping sleeve (7) over the shaft, and screw them loose together with the hex cap socket screws (17) and serrated lock washer (10). CAUTION! Handle with care! The clamp-ring halves must fit snugly on the shaft.

•

Adjust the clamp ring (6) to the overall length according to the drawing of the forward seal.

•

Measure the axial run-out at the clamp ring (6 (with liner inserted) with a dial test indicator, turning the shaft while doing this.

If the true running measured exceeds the permissible tolerance, re-align the clamp ring.

•

1.

Turn the point that is farthest from the stern tube upwards.

2.

Hit the free rear of the clamp ring with a lead hammer or aluminium/copper drift.

3.

Measure the axial run-out at the clamp ring again.

Repeat the procedure if the specified tolerance is still exceeded. CAUTION! Handle with care! The axial run-out of the clamp ring (6) is very important for the alignment of the forward liner (1).

•

Tighten the clamping screws (17) crosswise. Check the dial gauge; if twisted, align it again.

•

Measure and record the final axial run-out at the clamp ring (6).

•

Slide the O-ring (16) up to the clamp ring (6).

•

Unscrew the screws (14) used during transportation to fix the liner flange in place on the casing, and draw the liner (1) up against the clamp ring (6).

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.6.3

Alignment of the forward Liner

CAUTION! Handle with care! The clamp ring must be aligned and fixed before starting aligning the forward liner, otherwise the liner may slip on the shaft. •

Tighten up four cap socket screws (15) with serrated lock washer (19) into the liner flange (1), evenly distributed around its circumference, all the way, and the others hand-tight.

•

Apply the marking for “0” on the liner flange.

•

Measure the eccentricity with a dial gauge between the liner flange and the casing every 45°, and record the values.

NOTE! The shaft must be turned while measuring the eccentricity.

Angle

Your reading:

0° 45° 90° 135° 180° 225° 270° 315° Fig. 31:

•

Measure the eccentricity every 45°.

Mark the minimum and maximum values on the flange of the liner (1).

If the true running measured exceeds the permissible tolerance, re-align the forward liner (1) (leaving the dial gauge attached). To realign the liner (1) proceed as follows:

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2.6.4

Normal Method to realign the forward Seal Liner (Alignment with hammer/drift)

CAUTION! Handle with care! Do not use this method for split liners or ceramic-coated liners!

•

Turn the highest point upwards.

•

Loosen the hex cap socket screws (15) a bit.

•

Hit the liner flange with a lead hammer or an aluminium/copper drift.

•

Watch the dial gauge while aligning the forward liner (1).

•

Tighten the hex cap socket screws (15) with the correct tightening torque crosswise. Watch the dial gauge. If the liner is not twisted when the screws are tightened, then tighten all the screws. CAUTION! Handle with care! The tightening torque for the hex cap socket screws (15) is given on the assembly drawing and must be followed. Refer to the assembly drawing of forward seal for the correct tightening torque.

•

Measure and record the final eccentricity of forward liner (1).

NOTE! The form in Section 10 of this documentation should be used for the records. A fax copy for our Service department is desirable

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2.6.5

Final Securing of fastening Screws at forward Seal To secure the hex screws (70) at forward seal flange use the already installed tab washers (71) after the hex screws (70) are tighten.

Fig. 32:

•

2

Flange ring

70

hex screws

71

tab washers

Securing the forward seal screws with tab washers

1

Bend the long strap of tab washers (71) downwards the outer dia of flange ring (2) by hammer.

2

Bend the short strap of tab washers (71) upwards to one side of the spanner flat of screw head by suitable tool (i.e. screwdriver and hammer).

Repeat these steps for all hex screws (70).

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2.7

Measures to be taken after Fitting the S.C.-Seals CAUTION! Handle with care! Protect the S.C.-seal during the ship's stay at the shipyard, carefully against dirt and other foreign matter. Especially protection against sand blasting and paint on liners surface is required, otherwise the seal may be leaky. •

Check and note the aft S.C.-seal measurements for later use and comparison, after the coupling and alignment of the line shafting has been completed, using the Blohm + Voss wear-down gauge (15). See also Chapter “Checking the Propeller Shaft Bearing with Blohm + Voss Wear down Gauge”.

2.8

Checking the Propeller Shaft Bearing with B+V Wear down Gauge

2.8.1

General The B+V wear-down gauge (15) is used to check the clearance of the bearings. The measurement represents only a relative measurement and indicates only a change of the bearing clearance if compared with the original measurement. The wear down gauge (15) is supplied in a wooden tool box and must be stored on board.

Fig. 33:

Wear down gauge in wooden tool box

NOTE! The first measurement shall be taken immediately after fitting of the shaft.

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Measuring values are mainly determined in chamber I which serve as reference values for later measurements. Since it is important for all measurements that the wear down gauge (15) is always used in the same position, the line mark of the wear down gauge (15) is already punch marked on the casing of the aft S.C.-seal during the first measurement.

2.8.2

Preparation for Measuring

NOTE! A hole in the rope guard must be prepared on top and bottom side to enable a wear down measurement by diver with the ship afloat.

Fig. 34:

Rope guard with opening for wear down gauge reading (typical drawing)

P

Propeller

T

Rope Guard

A

Aft seal

W

Wear Down Gauge

N

Net Pick-Up

S

Sterntube

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

NOTE! For all measurements care shall be taken that the 'O' mark is always in the same position, which is punched into the circumference of the flange of the liner. It will be useful to fit the liner in such a way that this mark corresponds with the No. 1 propeller blade. After each disassembly of the seal new measured values shall be determined.

Fig. 35:

Aft seal measurement Type: SC2 M

1

Liner

58

Hexagon Socket Pipe Plug

15

Wear Down Gauge

59

Copper Ring

I

Chamber

II

Chamber

M

Marking at Gauge

III

Chamber

O

Marking at Liner

NOTE! Carry out the measurement with the B+V wear down gauge in Chamber I.

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2.8.3

Measuring Procedure

NOTE! The measurement should be done at the upper side and at the bottom side of the seal. •

remove socket pipe plugs (58), at top and bottom, together with sealing rings (59), from the chamber I.

•

Screw the wear-down gauge (15) firmly into the bore of the chamber I at the top, bottom respectively. Note marking.

NOTE! All measurements refer to position “0” on flange of liner top. •

Read the values measure, •

compare them with the original figures and

•

enter values measure in the table located in the cover of the wear-down gauge.

measure ment

Date

Tab. 1: •

top

bottom

clearance

Date

top

bottom

clearance

Table for measured values

After completion of measurements close the bores by re-inserting the socket pipe plugs (58), together with the sealing rings (59).

NOTE! A check of the clearance of the bearing can also be performed under water; however, care shall be taken that the original value measure is available. In order to avoid any pollution of the sea water the underwater measurements should preferably be carried out in lower part of seal (6 o'clock position). Measuring connections are provided at top and bottom. During the installation care shall be taken to ensure a vertical position of the measuring connections at the S.C.-seal.

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2.9

Corrosion Protection

2.9.1

General For the protection of the chrome-steel liners against corrosion, zinc anodes (87) for the aft S.C.seal are included in the standard supply. The S.C.-seal housing, provided it is not of bronze, has been treated with a prime coat at our works. It is necessary to give the S.C.-seal a final coat of ship paint.

CAUTION! Handle with care! It is absolutely necessary to fit zinc anodes (87). The zinc anodes (87) must be checked during each docking of the vessel and must be renewed if necessary. Care must be taken that a proper contact is ensured between the liner flange and the anode holder.

2.9.2

Ring Anode

Fig. 36:

10

Ring Anode

Hexagon screw

87

Ring Anode

88

Hex. socket head cap screw (secured by Loctite 242/243)

•

Remove the mounting bracket (16) after the aft S.C.-seal has been installed.

•

Mount the ring anode segments in accordance with the above picture using the bolts (88) the threads of which have to been wetted with LOCTITE 242/243.

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A

a

ØB

No. of Segment

Grad

~ max.

Weight Zn (kg)

for Size

125

276

3,7

600

140

296

4,8

630

160

320

5,3

670

for Size

C

Summ.

A

a

ØB

No. of Segment

Grad

~ max.

3

120

824

C

Weight Zn (kg)

31

880 942

Summ.

25,1 28,8

37

31,8

180

362

6,1

710

970

35,4

200

384

6,4

750

1017

37,8

220

406

240

420

260

2

180

21

6,9

800

7,7

850

1132

48,6

4

90

1075

42

45,1

454

8,5

900

1196

54,8

280

474

9

950

1258

59,2

300

491

9,5

975

1298

330

545

11,1

1000

1298

47

60,8 60,8

355

578

12,7

1030

1362

66,4

380

610

13,7

1060

1362

66,4

400

620

15

1090

1426

73,1

420

642

15,9

1120

1426

450

666

18,3

1180

1486

76,3

480

708

19,9

1250

1562

85,5

500

3

120

718

26

31

6

72

60

52

73,1

20,2

530

750

21,6

560

799

24,5

Tab. 2:

5

Dimensions and weights of ring anodes

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SC2 MZ + SC2 Z – Installation and Operating Manual INSTALLATION

2.9.3

Block Anodes (optional)

Fig. 37:

87

Block Anodes

Block Anode

88

Hex. socket head cap screw (secured by Loctite 242/243)

•

Remove the mounting bracket (16) after the aft S.C.-seal has been installed.

•

Mount the ring anode segments in accordance with the above picture using the bolts (88) the threads of which have to been wetted with LOCTITE 242/243.

Summ. weight Anodes Zn (kg) No. of

Size

W

X

Y

Z

125 – 160

ø

M6

180 – 220 240 – 260

4

2,2

43

95

58

20

M8

280 – 330 355 – 420

M10

450 – 530

M12

560 – 630

6

6

670

30

100

60

25

710 750 – 800

8

850 – 950

19,2

975 – 1120

10

24

1180 - 1250

12

28,8

Tab. 3:

M16

8 40

120

80

35

Dimensions and weights of block anodes

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2.10

Coating the S.C-Seals CAUTION! Handle with care! The S.C.-seal housing, provided it is not made of bronze, has been treated with an anticorrosive 2K primer at our works. However, it is needed to paint this area after installation has been completed.

NOTE! A housing made of bronze, does not need any painting.

2.10.1

Anticorrosive Paint at aft Seal All non corrosion resistant housings (i.e. made from cast iron) must be painted with anticorrosive paint.

Fig. 38:

Anticorrosive paint at aft seal, sterntube boss and rope guard

G

Aft seal housing

P

Propeller hub

L

Aft seal liner

A

Anticorrosive paint (- - - -)

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The anticorrosive paint is needed to extend the service life of the sacrificial anodes, which are protecting the aft seal liner (1) against corrosion. •

Coat the area (- - - - -), if not made from bronze, under the rope guard with anticorrosive paint. Care must be taken that paint does not make contact with the chrome-steel liner surface (1).

NOTE! Distance rings (65) and adapter rings (95) made of cast iron which are bolted together with housings made of bronze must be also painted with anticorrosive paint at the outside.

2.10.2

Final Paint at forward Seal All non corrosion resistant housings must be painted with anticorrosive paint.

Fig. 39:

Final paint at forward seal

G

Forward seal housing

K

Clamp ring

L

Forward seal liner

A

Anticorrosive paint (- - - -)

•

Coat the area (- - - - -) with final paint. Care must be taken that paint does not make contact with the chrome-steel liner surface (1).

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

3

COMMISSIONING

3.1

Pressure Tests and Filling of Sterntube Seals

3.1.1

Pressure Test of aft Seal

Propeller side

Ring

Sterntube side

#1

#2

#3R

#3

Chamber

(I)

(II)

(III)

Bottom Plug

9

10

8,11

Fig. 40:

Internal Arrangement of aft Seal Type: SC2 MZ

Fig. 41:

Socket pipe plugs at aft seal

Type SC2 MZ (view from aft)

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

•

Remove the socket pipe plugs No.2, No.3 and No.7 at top side as well as No.10 and No.11 at bottom side. Do not remove socket pipe plug No.8 and No.9 at bottom side and not No.4, No.5 and No.6 at top side of chamber II.

Note! For filling quantity of seal chambers, refer to table filling quantity later in this chapter

CAUTION! Handle with care! At small seals only (size 125-220) where the oil/air connection is located at the housing rings (see aft seal drawing): These plugs (72) or (145) are punch marked on the top side and machined with a chamber at the thread for free oil/air passage within the aft seal housing. They only fits at its special location, do not exchange them, otherwise the oil/air supply may be interrupted! After fastening the punch mark must be facing to the sterntube/Thruster.

Fig. 42a:

Plug with chamfer at aft seal oil connection (typical)

Fig. 42b:

Special Plug with chamfer (optional)

A

Aft seal housing

P

Hexagon socket pipe plug with chamfer

D

Sealing ring

M

Punch marking

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

3.1.1.1

Pressure Test of Ring #3 and filling of Sterntube with Oil •

Fill the sterntube with oil.

Note! In case of low temperatures or if oil having an increased viscosity has to be filled, we recommend to heat the oil up to 60°C ; however, the oil should not exceed this temperature. CAUTION! Handle with care! Take care that the sterntube is completely vented during filling to ensure complete filling of oil

3.1.1.2

•

The sterntube thus completely filled with oil should remain at the specified operating pressure for at least one hour .

•

Check for oil leakages at outlet of plug No.11 (chamber III).

•

After the system has proven tight, insert the plug No. 11 (chamber III) oil tight with its sealing ring.

Pressure Test of Ring #3R and filling of Oil Chamber III •

• 3.1.1.3

Fill the chamber III with oil via the corresponding piping from aft seal 50 L settling tank by opening the shut off valve Z3. When the oil chamber III is completely filled with oil: •

close the shut off valve Z3 in the corresponding piping from aft seal tank immediately,

•

insert the plug No. 7 (chamber III) oil tight with its sealing ring.

Check for oil leakages at outlet of plug No.10 (chamber II).

Filling of Chamber I and Pressure Test of Ring #2 •

Fill the chamber I with oil.

NOTE! As from S.C.-seal size 710 and according to the oil viscosity it is possible that oil leaks out at ring #1 because of the missing counter-pressure. •

Check again for oil leakages at outlet of plug No.10 (chamber II).

•

Insert the remaining socket pipe plugs No.2 and No.3 oil tight with its sealing rings.

•

After the system has proven tight, insert the plug No.10 (chamber II) oil tight with its sealing ring.

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

3.1.1.4

Filling of Oil Chamber II

Fig. 43:

Naming of valves at settling tank

Type SC2 MZ

•

Close the shut off valve Z2 in the (lower) oil return line L2 at the 50 L settling tank.

•

Open the vent valve Z5 in the (lower) oil return line L2.

•

Fill the oil chamber II with oil via the piping from aft seal settling tank by open the shut off valve Z1 in the (upper) oil supply line L1 at the 50 L settling tank. CAUTION! Handle with care! Filling with oil shall be performed in a very careful manner to ensure that no air is trapped in the system.

•

Open refilling valve ZT for filling of settling tank and/or regulating of oil level in settling tank, if required.

•

When the chamber II is completely filled with oil (an airfree flow of oil comes out of vent V1): •

close the shut off valve Z5 in the vent line immediately,

•

close the shut off valve Z1 in the (upper) oil supply line L1.

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

•

Check oil level in the 50 L settling tank and correct via refilling valve ZT, if required. CAUTION! Handle with care! The oil level of the aft seal settling tank has to be checked after the ship has left the dock and the respective shut-off valves have been opened.

3.1.1.5

Pressure Test of Ring #1

NOTE! The ring #1 will not be tested as this one is working as a dirt deflector only.

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

3.1.2

Pressure Test of forward Seal

Sterntube side

V1

V2 X

Fig. 44:

Fig. 45:

(Ring) (Chamber)

Internal Arrangement of forward Seal Type: SC2 Z

A

Drain plug (12)

T

Forward seal tank

D

Connecting pipes (3x)

O

Overflow

Pressure Test of forward Seal Type SC2 Z

NOTE! The sterntube thus already completely filled with oil and should remain at the specified operating pressure for at least one hour .

3.1.2.1

Pressure Test of Ring V1

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

3.1.2.2

•

Remove socket pipe plug No. A (12) at bottom side of chamber X.

•

Check for oil leakages at outlet of socket pipe plug No. A (12).

•

After the system has proven tight, insert the socket pipe plug No. A (12) oil tight with its sealing ring (11).

Pressure Test of Ring V2 and filling of Oil Chamber X •

Fill up the oil tank of the forward S.C.-seal to maximum oil level. Hereby the chamber X of the forward seal will be filled.

Note! In case of low temperatures or if oil having an increased viscosity has to be filled, we recommend to heat the oil up to 60°C ; however, the oil should not exceed this temperature. •

Check for oil leakages at sealing ring V2. CAUTION! Handle with care! The oil level in the forward seal tank has to be checked after the sterntube has been filled with oil and after the ship has left the dock.

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SC2 MZ + SC2 Z – Installation and Operating Manual COMMISSIONING

3.2

Filling Quantity of the aft and forward S.C.-Seal (Without Oil Tank and Piping)

Fig. 46a:

Seal chambers at aft seal

Fig. 46b:

Seal chamber at forward seal

The filling quantity for the chambers of the seals is given in the table below. Chamber II

Chamber II

III / X

Size

I

0,1

0,12

600

0,93

0,86

0,93

0,15

0,14

0,15

630

0,98

0,90

0,98

160

0,17

0,15

0,17

670

1,04

0,96

1,04

180

0,18

0,16

0,18

710

1,19

1,24

1,19

200

0,19

0,17

0,19

750

1,11

1,31

1,34

220

0,21

0,19

0,21

800

1,25

1,63

1,78

240

0,25

0,23

0,25

850

1,40

1,73

1,89

260

0,27

0,25

0,27

900

1,64

2,06

2,15

280

0,29

0,27

0,29

950

1,74

2,17

2,27

300

0,31

0,28

0,31

975

1,75

2,23

2,32

330

0,34

0,31

0,34

1000

1,77

2,28

2,38

355

0,44

0,40

0,44

1030

1,91

2,60

2,59

380

0,47

0,43

0,47

1060

2,00

2,88

2,78

400

0,49

0,45

0,49

1090

2,00

2,97

2,87

420

0,52

0,47

0,52

1120

2,00

3,05

2,97

450

0,64

0,60

0,64

1180

2,00

3,20

3,10

480

0,68

0,64

0,68

1250

1,92

3,50

3,44

500

0,71

0,67

0,71

530

0,75

0,71

0,75

560

0,87

0,81

0,87

Size

I

125

0,12

140

Tab. 4:

Chamber filling (Oil) quantity in (L)

III / X

Types: SC2 M (aft) and SC2 Z (forward)

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SC2 MZ + SC2 Z – Installation and Operating Manual OPERATION

4

OPERATION

4.1

System Overview for Operation

Fig. 47:

Aft Seal Lubrication Diagram

Type SC2 MZ

A

Aft seal

T1

Settling tank for chamber II and III

Z1

Shut of valve for pipe L1

T2

Lower gravity tank

Z2

Shut of valve for pipe L2

Z3

Shut of valve for chamber III/ pipe L3

L1

Pipe between tank T1 and chamber II

Z5

Vent valve for pipe L2

L2

Pipe between tank T1 and chamber II

ZD

Drain valve for settling tank T1

L3

Pipe between tank T1 and chamber III

ZT

Refilling valve at tank T1

L4

Pipe between tank T2/T2.1 and sterntube

V1

Vent for pipe L2

T2.1 Upper gravity tank

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SC2 MZ + SC2 Z – Installation and Operating Manual OPERATION

4.2

4.3

Preparing the Lubrication System for Operation •

Fill the sterntube with oil.

•

Shut off the connection between upper gravity Tank2.1 and the sterntube.

•

Shut off all valves in the return line between sterntube and the upper (Emergency) gravity Tank2.1.

•

Check the upper (Emergency) gravity Tank2.1 for oil filling.

•

Check the lower gravity Tank2 for oil filling.

•

Open all valves in the pipe between the lower gravity Tank2 and the sterntube.

•

Open all valves in the return line between sterntube and the lower gravity Tank2.

•

Check the aft seal settling Tank1 (50 L) for oil filling.

•

Open the shut off valves Z1, Z2 and Z3 in the pipes between the aft seal settling Tank1 and the oil chamber II an III of aft seal.

•

Vent pipe between the aft seal settling Tank1 and the oil chamber II by short time opening of vent valve V5 until oil comes our of the vent.

•

Check the forward seal tank for oil filling.

Operation of the Seals There are different operating conditions available to run the aft seal.

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SC2 MZ + SC2 Z – Installation and Operating Manual OPERATION

4.3.1

Normal Operation Chamber I has the same pressure as the surrounding see water because sealing ring #1 is working as a dirt deflector only. The sealing ring #2 is sealing against the high water pressure and sealing rings #3R is facing (sealing) the sterntube. The chamber II between is pressurized by an aft seal oil tank with a pressure lower than the water pressure. Sealing ring #3 is facing (sealing) against the higher sterntube oil pressure. The chamber III is pressurized by the same aft seal oil tank as chamber II, therefore the sealing ring #3R is running without load (differential pressure). The forward seal rings V1 and V2 are facing towards the sterntube, while the chamber X is pressurized with a low pressure to reduce the ring loads and to lubricate the sealing rings. For this operation set the valves as follows (run with the lower gravity Tank1): •

Z1, Z2, Z3

•

(all valves between sterntube and upper gravity Tank2.1 closed)

•

all valves between sterntube and lower gravity Tank2 open.

open

(valve between 50 L aft seal settling Tank1and chamber II and III)

The pressure within the seal is given as shown:

(Ring)

Sterntube side

#1

#2

#3R

Sterntube side STERNTUBE

Propeller side

#3

EngineRoom

V1

V2

(Ring)

p (bar)

(I)

(II)

Water Oil/Wat. Oil Fig. 48:

(III)

(STERNTUBE)

(X)

Oil

Oil

Oil

(Chamber) Air

(Medium)

Normal pressure conditions within seal lubrication system Type SC2 MZ +SC2 Z

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SC2 MZ + SC2 Z – Installation and Operating Manual OPERATION

4.3.2

Operation when Ring#3 is damaged If the sealing ring #3 is damaged, the chamber III is pressurized with the sterntube pressure and the sealing ring #3R must be activated. Therefore •

close the valve Z3 in the line from 50 L aft seal settling Tank1 to the chamber III.

For this operation set the valves as follows (run with the lower gravity Tank1): •

Z1, Z2 open

•

Z3

(valve between 50 L aft seal settling Tank1 and chamber II)

closed (valve between 50 L aft seal settling Tank1and chamber III)

The pressure within the seal is given as shown:

(Ring)

Sterntube side

#1

#2

#3R

#3

Sterntube side STERNTUBE

Propeller side

EngineRoom

V1

V2

(Ring)

p (bar)

(I)

(II)

Water Oil/Wat. Oil Fig. 49:

(III)

(STERNTUBE)

(X)

Oil

Oil

Oil

Pressure conditions within seal lubrication system

(Chamber) Air

(Medium)

Type SC2 MZ +SC2 Z

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SC2 MZ + SC2 Z – Installation and Operating Manual OPERATION

4.3.3

Emergency Operation (i.e. when Ring#2 is damaged) In case of water overflow in the 50 L aft seal settling tank the sterntube pressure must be increased to a level above the see water pressure. Therefore the sterntube lubrication system must be set to the upper gravity tank Tank2.1.

For this operation set the valves as follows (run with the upper gravity Tank2.1): •

close Z1, Z2, Z3 (valves between 50 L aft seal settling Tank1and chamber II and III)

•

close all valves in the pipes between sterntube and lower gravity Tank2

•

open all valves in the pipes between sterntube and upper gravity Tank2.1.

The pressure within the seal is given as shown:

(Ring)

Sterntube side

#1

#2

#3R

Sterntube side STERNTUBE

Propeller side

#3

EngineRoom

V1

V2

(Ring)

p (bar)

(I) Water Fig. 50:

(II)

(III)

(STERNTUBE)

(X)

Oil

Oil

Water WaterWater

Emergency pressure conditions within seal lubrication system

(Chamber) Air

(Medium)

Type SC2 MZ +SC2 Z

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SC2 MZ + SC2 Z – Installation and Operating Manual OPERATION

4.4

Tank Selection at 2 Tank System (optional) NOTE! At a draft difference HLWL - HBWL > 8°m , the seal system must be equipped with a second gravity tank and a second aft seal tank. If not mentioned otherwise on the corresponding schemata „Diagram of Sterntube Lubrication“, the height of switch over point has to be calculated as follows:

Height of switch over point:

H SOP =

H BWL + H LWL (m ) 2

HSOP

Draft where to switch over between the lower and upper tanks

HBWL

Height of Ballast Water Line (BWL)

HLWL

Height of Load Water Line (LWL)

The switch over between the gravity tanks as well as between the aft seal tanks must be done at HSOP. Operate the tanks according to the actual draft:

between HBWL and HSOP Operate with lower aft seal Tank1 and lower gravity Tank2, therefore set the valves: Z1, Z2, Z3, Z13 open

(shut off valves)

Z5, Z16, Z18

closed

(shut off valves)

Z12, Z15

set to A->B (change over valves)

open for lower tanks

Z17

set to A->B (change over valve)

Emergency Tank not activated

between HSOP and HLWL Operate with upper aft seal Tank1.1 and upper gravity Tank2.1, therefore set the valves: Z1, Z2, Z3, Z16 open

(shut off valves)

Z5, Z13, Z18

closed

(shut off valves)

Z12, Z15

set to A->C (change over valves)

open for upper tanks

Z17

set to A->B (change over valve)

Emergency Tank not activated

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SC2 MZ + SC2 Z – Installation and Operating Manual OPERATION

Fig. 51:

Valve Settings at 2 Tank Version

SC2MZ (typical sketch)

Z1 Z2 Z3

Shut of valves for oil pipe to aft seal

Z17 Changeover valve in oil pipe between sterntube and Tank T2.1 and Emergency Tank T2.2

Z5

Vent valve

Z18 Shut of valve in return line between sterntube and Emergency Tank T2.2

Z12 Changeover valve in oil pipe between aft seal and Tanks T1/T1.1 Z13 Shut of valve in return line between sterntube and Tank T2

A

Outlet at changeover valve to aft seal

Z15 Changeover valve in oil pipe between sterntube and Tanks T2/T2.1

B

Connection at changeover valve to lower tank

Z16 Shut of valve in return line between sterntube and Tank T2.1

C

Connection at changeover valve to upper tank

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SC2 MZ + SC2 Z – Installation and Operating Manual MAINTENANCE

5

MAINTENANCE

5.1

Maintenance of the seal

5.1.1

Long Term Maintenance of the aft Seal During each dockage, however after 5 years at the latest, the S.C. seal should be removed and overhauled. Renew all Elastomer parts: •

The sealing rings (6) and (31).

•

The O-rings (17) and (32) if installed.

•

The circulator (24).

To be checked and to be renewed or replaced if necessary: •

The corrosion protection (87) with its bolts (88). CAUTION! Handle with care! Replace the corrosion protection (87) when they have less than 50% of its original volume.

•

The sealing rings (washers) (11), (34) and (59).

•

The liner (1).

•

The soft packings (80) and (81) at the flange surfaces, if the flanges are dismantled only.

At liners with electrical insulation additionally: •

The insulating tube (85).

•

The (glued in) insulating washer (86), if the electrical resistance between washer (86) and liner (1) is too low.

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SC2 MZ + SC2 Z – Installation and Operating Manual MAINTENANCE

5.1.2

Long Term Maintenance of the forward Seal During each dockage, however after 5 years at the latest, the forward S.C. seal should be removed and overhauled. Renew all Elastomer parts: •

The sealing rings (5).

•

The O-ring (16).

•

The circulator (22).

To be checked and to be renewed or replaced if necessary: •

The tab washers (71).

•

The sealing rings (washers) (11).

•

The liner (1).

•

The O-ring (146), only if the liner (1) will be dismantled.

•

The soft packing (82) at the flange surfaces, if the flange is dismantled only.

5.2

Lubrication Control and Maintenance of the Oil Tanks

5.2.1

General about Lubrication Control The oil tank of the aft S.C.-seal acts as a pressure and storage tank as well as a leak trap for smaller quantities of water and / or oil. When properly positioned with the height of the tanks as given on the drawing "Diagram of Sterntube Lubrication”, smaller quantities of water and / or oil are diverted into the inside of the ship both when the shaft is turning and not turning.

NOTE! Slight dripping leaks from the overflow of the oil tank for the S.C.-seal is not an indication of a fault as long as the quantity concerned (l/day) is approx. 1% of the S.C.-seal size within a 24 hour period. E.g. for a seal size 670 an oil consumption of 6.7 l/day is not a fault. CAUTION! Handle with care! When greater quantities leak, the valve from the feed pipe for the 30/50 liter oil tank to the aft S.C.-seal must be closed.

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SC2 MZ + SC2 Z – Installation and Operating Manual MAINTENANCE

CAUTION! Handle with care! At continuously higher oil consumption, the use of a more viscous oil should be considered and / or the valve in the supply line to chamber II should be closed, but opened once or twice every day for approx. 1 hour to ensure an oil supply for chamber II. Similarly, low oil consumption (when the shaft is turning) is not an indication of a fault as long as the oil consumption level is around 1% of the above named quantity or zero when the shaft is not turning.

5.2.2

Lubrication Control

5.2.2.1

Weekly The lubrication control extends only a few checks: •

Check the oil level in the sterntube gravity tank.

•

Check the oil level in the 30/50 loil tank for the aft S.C.-seal, refill if necessary.

•

If installed; check the oil level in the 15/30 l oil tank for the forward S.C.-seal, refill if necessary.

•

Check the oil temperature in the stern tube. CAUTION! Handle with care! The maximum oil temperature should not exceed 60°C at sealing rings of Perbunan , and 110°C at sealing rings of Viton . Higher temperatures can have negative effects on the service life of the sealing rings. If higher temperatures are measured, the cause must be determined.

5.2.2.2

Quarterly (optional)

NOTE! In special cases the aft seal has an extra flushing pipe fitted for draining the oil chamber. For this purpose flush the oil chamber of the aft S.C.-seal to drain the water/oil emulsion and to refill the chamber with fresh oil.

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SC2 MZ + SC2 Z – Installation and Operating Manual MAINTENANCE

Fig. 52:

Flushing line for draining the aft seal chamber (at bottom side of seal).

A

Aft seal

P

Propeller

D

Drain for flushing line

S

Sterntube

ZD

drain valve

Typical Sketch

Therefore:

5.2.2.3

•

Open the drain valve ZD in the flushing line until clear oil is coming out of the drain.

•

Check the oil level in the aft seal tank, refill if necessary.

Half yearly •

Drain the content of the 30/50 liter tank for the aft S.C.-seal and refill it with new oil.

•

If installed; drain the oil in the 15/30 liter forward S.C.-seal and in the respective oil tank and refill both with new oil (see below).

•

Take an oil sample from the sterntube and check it for water. CAUTION! Handle with care! The maximum allowed water content in the sterntube for white metal bearings is 5%.

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SC2 MZ + SC2 Z – Installation and Operating Manual MAINTENANCE

The measurements depend on the condition of sample: Oil

No further measures required.

Emulsion

Still in an unproblematic condition; oil change to be performed, if required. Existing free water shall be drained:

Water

Water in sterntube shall be drained and oil to be refilled.

Oil Change in 50 L Settling Tank

5.2.2.4

•

Close shut off valves Z1 and Z2 in piping L1 and L2 for aft seal.

•

Drain settling tank through valve ZD and close it afterwards.

•

Open valve ZT until the settling tank is filled with fresh oil via the gravity tank.

•

Open valves Z1 and Z5 until the remaining oil is discharged from the seal and piping through vent valve Z5.

•

Close the vent valve Z5 again and open valve Z2.

•

Refill Settling tank once more by opening valve ZT and close it afterwards.

Draining the Oil Tank for forward S.C.-Seal

Fig. 53:

A

Drain Plug

T

Forward seal tank

D

Pipe connection (3x)

O

Overflow

Draining the oil tank and chamber of forward seal.

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SC2 MZ + SC2 Z – Installation and Operating Manual MAINTENANCE

•

open the screw plug (9) at the top side of lower tank,

•

open the drain plug (5) (or valve if installed) at the bottom side of the 15/30 L tank and drain the tank content completely into a suitable container,

•

open the drain plug No. A (12) at chamber X of forward seal

When the oil is drained completely, then: •

screw in drain plug No. A (12) with washer (11) oil tight into the forward S.C.-seal,

•

screw in drain plug (5) with washer (6) oil tight into the bottom side of tank,

•

refill fresh oil through the dipstick hole at the upper side of the 15/30 L tank up to the max level

•

screw in the dipstick into the upper side of the 15/30 L tank.

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SC2 MZ + SC2 Z – Installation and Operating Manual MAINTENANCE

5.3

Procedure before docking the Ship

Fig. 54:

Lubrication Piping

Z1

Shut off valve for chamber II

Z2

Shut off valve for chamber III

•

Type SC2 MZ

T1

Aft seal tank

Before docking the ship, stop the oil supply to chamber II by closing the shut off valve Z1 and Z2 in the supply pipes from the 50 L oil tank T1 and the aft S.C.-seal (to avoid leakages due to missing counter pressure at ring #2).

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6

REPAIR

6.1

Exchange of the Sealing Rings by Bonding Device In cases where the renewal of a sealing ring is required prior to the expiry of an intermediate survey as laid down by the requirements of the classification society, this can be accomplished by using the SIMPLEX Bonding Device by Blohm + Voss Industries or authorized service stations, with the ship being afloat or in dock, without having to dismount the propeller or to withdraw the shaft.

NOTE! In general this is possible for all sizes of S.C. seals, provided that sufficient installation space is available (e.g. for seals with standard installation length). CAUTION! Handle with care! The exchange of the sealing rings with the help of the special Simplexbonding device has to be carried out by appropriately trained Blohm + Voss engineers only. To carry out bonding work at the aft seal with the ship being afloat the following shall be ensured: •

While being afloat, trim the ship in such a way (generally only practicable with tank vessels and bulk carriers) that the S.C.-seal is approximately one half of a meter above the water line.

•

Alternative the use of a habitat with divers from our service partner could be taken into consideration.

Anyhow, for the bonding work •

erect a suitable working platform at the aft seal.

•

drain the oil from the sterntube/Thruster and the chambers of the S.C.-seal.

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Fig. 55:

Bonding by bonding device without any shaft work.

After removing the housing rings and pulling out the respective sealing ring, the old sealing ring is cut, and the new ring (non split) placed in the bonding device.

Fig. 56a:

Bonding device with sealing ring

Fig. 56b:

Opened bonding device with cut sealing ring

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6.2

Use of the Distance Ring (optional) By using a distance ring (65), skimming of the aft liner (1) can be skipped once, thus practically doubling its service life.

Fig. 57: Aft Seal with Distance Ring

7

Hex screws

B

Installation length

65

Distance ring (split type)

C

With of distance ring (incl. 1mm Packing)

80

Flange packing

P

Dowel Pin

S

Hexagon socket head cap screw

NOTE! The installation length “B” will be kept with or without the distance ring (65). The distance ring (65) is a split ring. The dimension “C” differs depending on the size of ring.

Size

C (mm)

125 – 670

15

710 – 1250

19

Tab. 5:

Distance Ring Thickness incl. 1mm Packing

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NOTE! For smaller S.C.-seals the distance ring (65) may have to be removed when bonding work is carried out.

6.2.1

Removing the Distance Ring without any Shaft Work To remove an installed distance ring (65) without any shaft work, proceed as follows: •

Support the seal housing or use a lifting device for fixing i.e. the original supplied lifting bracket (20) and fixing bolts (21).

•

Cut off the safety wire (18) and loosen the hex screws (7).

•

Push the seal housing a little bit away from the sterntube boss.

•

Secure the (upper) distance ring halve in a lifting device.

•

Remove the hex screws (7).

•

Move the seal housing away from the sterntube boss until there is enough space to remove the distance ring (65) with its recess.

•

Insert 2 to 3 hex screws (7) into the lower part of housing flange (2) to support the (lower) distance ring halve.

•

Loosen, but do not remove the hex socket cap screws from thread.

•

Hit the hex socket cap screws on both sides of the distance ring (65) a little bit with a lead hammer or an aluminum/copper drift.

•

Remove the hex socket cap screws from the distance ring (65).

•

Remove both distance ring halves.

•

Cut off the old flange packings (80).

•

Prepare the new packing (80) by cutting a dove tail into it for splitting.

•

Paint the surfaces at flange ring (2) and sterntube boss, which are in contact with the packing (80), with grease.

•

Put the new flange packing (80) between the housing flange (2) and sterntube boss and place it on the flange sealing surface. CAUTION! Handle with care! If the aft seal is connected with an external oil or air supply, or equipped with a drain or flushing line, take special care that all bores in the packing are free for each single line. This must be done very conscientious. Keep in mind that there is no way to repair a blocked pipe at the flange of the aft seal without dry-docking the ship.

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•

Seal the dove tail of the packing (80) with PERMATEX.

•

Paint O-ring for air supply line with grease and insert it in the corresponding countersinking, if any.

•

Push the seal housing against the sterntube boss.

•

Fit in the hex bolts (7) for fixing the seal housing. CAUTION! Handle with care! The tapped bores for hex screws (7) are to be drilled deeper by the distance "C" mm or shorter hex screws (7) to be used.

•

Remove the lifting bracket (20) and store it onboard, together with the respective fixing bolts (21) and seal threaded bores using plugs (22) and sealing washers (19), if used for this removal.

•

Tighten the bolts (7) cross-wise with the wrench torque given on the drawing, and secure it by using the safety wire (18) made of chrome-steel.

NOTE! If more details about installation are needed, please refer to chapter “INSTALLATION”

NOTE! When the distance ring (65) is removed, store it on board in the spare parts box.

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6.2.2

Afterwards Assembly of Distance Ring without any Shaft Work The distance ring (65) may often also be fitted later and can always be re-used. CAUTION! Handle with care! For smaller sizes and for special installation lengths it must be checked by B+V in advance if a distance ring can be installed. •

Support the seal housing or use a lifting device for fixing.

•

Cut off the safety wire (18) and loosen the hex screws (7).

•

Push the seal housing a little bit away from the sterntube boss.

•

Remove the hex screws (7).

•

Move the seal housing away from the sterntube boss until there is enough space to insert the distance ring (65) with its recess.

•

Secure the (upper) distance rings halve in a lifting device and move it in position.

•

Insert 2 to 3 hex screws (7) into the lower part of housing flange (2) to support the (lower) distance ring halve.

•

Put the (lower) distance ring halve into position.

•

Insert the dowel pins at distance ring halve.

•

Clean the joints of both distance ring halves.

•

Coat the joint of the distance ring halve (where the dowel pins are fitted) with PERMATEX.

•

Coat the hex socket cap screws with Loctite 243 and screw them in.

•

Fasten the hex socket cap screws.

NOTE! If PERMATEX is squeezed out of the joint, wipe it off. •

Cut off the old flange packing (80)

•

Prepare the new packings (80) by cutting a dove tail into it for splitting.

•

Paint both sides of the packings (80) with grease.

•

Paint the surfaces at flange ring (2), at distance ring (65) and sterntube boss, which are in contact with the packings (80), with grease.

•

Place one of the new flange packings (80) between the distance ring (65) and sterntube boss and place it on the distance ring sealing surface.

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CAUTION! Handle with care! If the aft seal is connected with an external oil or air supply, or equipped with a drain or flushing line, take special care that all bores in the packing are free for each single line. This must be done very conscientious. Keep in mind that there is no way to repair a blocked pipe at the flange of the aft seal without dry-docking the ship. •

Push the distance ring (65) against the sterntube boss.

•

Seal the dove tail of the packing (80) with PERMATEX.

•

Put the new flange packing (80) between the housing flange (2) and sterntube boss and place it on the flange sealing surface.

•

Push the seal housing against the distance ring (65).

•

Fit in longer hex screws (7) than before for fixing the seal housing.

NOTE! The hex screws (7) are extended by the dimension “C” compared with the standard version. One flange packing (80) is placed on each side of the distance ring (65). •

Remove the lifting bracket (20) and store it onboard, together with the respective fixing bolts (21) and seal threaded bores using plugs (22) and sealing washers (19), if used for this removal.

•

Tighten the hex screws (7) cross-wise with the wrench torque given on the drawing, and secure it by using the safety wire (18) made of chrome-steel.

NOTE! If more details about installation are needed, please refer to chapter “INSTALLATION”

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6.3

Disassembling the complete S.C.-Seals

6.3.1

Designation of Sealing Rings at aft Seal On principle all sealing rings are designated by the numbers 1 to 3, counting from aft to forward.

Propeller side

Sterntube side

#1

#2 I

Fig. 58:

#3R II

III

#3

#1

Dirt sealing ring

#2

Water sealing ring

#3R

(Spare) Oil Sealing ring

#3

Oil sealing ring

(Ring)

(Chamber)

Naming of aft Seal Sealing Rings Type: SC2 MZ

CAUTION! Handle with care! In case of S.C.-seals which are provided with sealing rings made of different materials it is essential to observe the order marking of the individual sealing rings in the event of a repair.

6.3.2

Preparing the complete aft Seal for Transport to the Workshop CAUTION! Handle with care! The S.C.-seal shall be well protected against dirt every time.

•

Discharge of oil within the Sterntube/thruster.

•

Close shut off valves Z1 and Z2 for oil supply to chamber II.

•

Close shut off valve Z3 for oil supply to chamber III.

•

Ashore transport clamp (20), wood logs and mounting straps (16), together with pertaining screws.

•

Remove hexagon screws (22) and hexagon screw locking (19).

•

Mount the transport clamp (20) using the socket head cap screws (21).

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•

Remove corrosion protection (87) and hexagon screws (88).

•

Clean up the removed hexagon screws (88) from Loctite.

•

Mount the mounting straps (16) using the socket head cap screws (14) and hexagon screws (88).

NOTE! It might be possible that the hex screws (10) must be loosened and the liner must be moved a little bit until the mounting straps (16) fits.

6.3.3

Designation of Sealing Rings at forward Seal On principle all sealing rings at forward Seal are designated by the numbers V1 to V2, counting from aft to forward.

Sterntube side

V1

V2 X

Fig. 59:

V1

Oil sealing ring (5)

V2

Oil sealing ring (5)

(Ring) (Chamber)

Naming of forward Seal Sealing Rings Type: SC2 Z

CAUTION! Handle with care! In case of S.C.-seals which are provided with sealing rings made of different materials it is essential to observe the order marking of the individual sealing rings in the event of a repair.

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6.3.4

Preparing the complete forward Seal for Transport to the Workshop CAUTION! Handle with care! The S.C.-seal shall be well protected against dirt every time.

NOTE! Ensure that the original supplied lifting tools: • • •

fixing screws (14) with spacer sleeve (76) if any, transport clamp (20) with the respective fixing bolts (21), (in special cases replaced by eye bolt (55)) and wood logs

which were stored onboard, are available for removal of aft seal. •

Discharge of oil within the Sterntube.

•

Oil to be drained from forward S.C.-seal and respective oil tank.

•

Dismount pipe connection between the forward S.C.-seal and the corresponding oil tank.

•

Fix transport clamp (20) at flange ring (2) by screws (21) (in special cases replaced by eye bolt (55)).

•

Prepare the bolts (14) that are stored on board for fixing the liner (1) at the cover ring (4).

•

Prepare the wood logs ready for protection of the liner and / or the casing front.

•

Release the liner (1) then from the clamp ring (6) by loosening the bolts (15) first, secondly remove them complete.

•

Dismantling the clamp ring (6) from the shaft by removing the screws (17) with clamping sleeves (7) and washers (10). WARNING! Danger of injury or mortal danger! The clamp ring halves must be supported in a suitable way to avoid that they fall down and hurt anybody.

•

Push the liner (1) cautiously into the S.C.-seal casing until it contacts the cover ring (4).

•

Mount the liner (1) at the cover ring (4) by fixing screws (14) with spacer sleeve (76) if any, turn the liner to match the bores if necessary.

•

If the O-ring (16) will be replaced by a new one which is available then it can be cut and removed.

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6.3.5

Removal of Seals if the Shaft is drawn out to the Inside

6.3.5.1

Removal of aft Seal (Shaft is moved to the Inside) (If the propeller shaft is drawn-out into the inside of the vessel.) •

Cut off the safety wire (18), if any, and loosen the hex screws (10) at aft liner (1).

•

Push the liner (1) cautiously into the S.C.-seal casing by a small amount.

•

Remove corrosion protection (87) from liner (1) by removing the screws (88).

•

Remove screws (55) from cover ring (5).

•

Fix liner (1) with mounting straps (16) and screws (14) at cover ring (5).

•

Remove the propeller from the shaft.

•

Remove plugs (22) and packings (19) from flange ring (2).

•

Fix the lifting bracket (20) with the respective fixing bolts (21) at flange ring (2).

•

Use a lifting device for lifting the aft seal at the lifting bracket (20).

•

Cut off the safety wire (18) and remove the hex screws (7) at flange ring (2).

•

Remove the O-ring (17) from the shaft in stern direction, if any.

•

Remove the aft S.C.-seal from the shaft in stern direction.

•

Lay down the aft S.C.-seal vertically on a suitable (wooden) pallet, use wooden blocks at the flange ring if available, and secure it.

•

Protect the S.C.-seal by a plastic bag against rain and dust.

•

Transport the aft S.C.-seal into the workshop.

NOTE! Handle the S.C.-seal as described in the previous chapter “Transportation”

6.3.5.2

Removal of forward Seal (Shaft is moved to the Inside) (If the propeller shaft is drawn-out to the inside of the vessel.) •

Uncouple the propeller shaft and push it in bow direction until it is pulled out of the forward seal.

•

Remove the O-ring (16) from the shaft in stern direction, if any.

•

Use a lifting device for lifting the aft seal at the lifting bracket (20).

•

Bend the tab washers (71) back to a flat unit to be able to loosen the hex screws (70).

•

Loosen and remove the hex screws (70) with tab washers (71) from flange ring (2).

•

Remove the forward S.C.-seal from the sterntube boss in bow direction.

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•

Lay down the forward S.C.-seal horizontally on a suitable (wooden) pallet, use wooden blocks at the flange ring if available, and secure it.

•

Protect the S.C.-seal by a plastic bag against rain and dust.

•

Transport the aft S.C.-seal into the workshop.

NOTE! Handle the S.C.-seal as described in the previous chapter “Transportation”

6.3.6

Removal of Seals if the Shaft is drawn out to the Outside

6.3.6.1

Removal of forward Seal (Shaft is moved to the Outside) (If the propeller shaft is drawn-out to the outside of the vessel.) •

Use a lifting device for lifting the aft seal at the lifting bracket (20).

•

Bend the tab washers (71) back to a flat unit to be able to loosen the hex screws (70).

•

Loosen and remove the hex screws (70) with tab washers (71) from flange ring (2).

•

Remove the O-ring (16) from the shaft in bow direction, if any.

•

Remove the forward S.C.-seal from the shaft in bow direction.

NOTE! If needed, uncouple the propeller shaft and push it in stern direction while moving the forward seal on the shaft in bow direction. •

Lay down the forward S.C.-seal horizontally on a suitable (wooden) pallet, use wooden blocks at the flange ring if available, and secure it.

•

Protect the S.C.-seal by a plastic bag against rain and dust.

•

Transport the aft S.C.-seal into the workshop.

NOTE! Handle the S.C.-seal as described in the previous chapter “Transportation”

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6.3.6.2

Removal of aft Seal (Shaft is moved to the Outside) (If the propeller shaft is drawn-out to the outside of the vessel.) •

Cut off the safety wire (18), if any, and loosen the hex screws (10) at aft liner (1).

•

Push the liner (1) cautiously into the S.C.-seal casing by a small amount.

•

Remove corrosion protection (87) from liner (1) by removing the screws (88).

•

Remove screws (55) from cover ring (5).

•

Fix liner (1) with mounting straps (16) and screws (14) at cover ring (5).

•

Remove the propeller from the shaft, if required.

•

Remove plugs (22) and packings (19) from flange ring (2).

•

Fix the lifting bracket (20) with the respective fixing bolts (21) at flange ring (2).

•

Use a lifting device for lifting the aft seal at the lifting bracket (20).

•

Draw-out the shaft cautiously in stern direction while pushing the O-ring (17) continuously in direction of the liner (1) if the O-ring (17) will be kept, otherwise cut off the O-ring (17), if any.

•

When the shaft is drawn-out remove the O-ring (17) from the shaft, if any.

•

Cut off the safety wire (18) and remove the hex screws (7) at flange ring (2).

•

Remove the aft S.C.-seal from the Sterntube boss.

•

Lay down the aft S.C.-seal horizontally on a suitable (wooden) pallet, use wooden blocks at the flange ring if available, and secure it.

•

Protect the S.C.-seal by a plastic bag against rain and dust.

•

Transport the aft S.C.-seal into the workshop.

NOTE! Handle the S.C.-seal as described in the previous chapter “Transportation”

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6.4

Exchange the Sealing Rings of S.C.-Seals

6.4.1

Disassemble the aft Seal in the Workshop

6.4.1.1

Disassemble the aft Liner

6.4.1.2

•

Unbolt the mounting straps (16) by removing the hexagon screws (88).

•

Remove screws (14) from split cover ring (5).

•

Pull the liner (1) carefully out of the casing.

•

Remove the insert rings (30) from the groove of the liner, if any.

•

Clean up the liner (1) and remachine the running surface if necessary. See also Section “Remachining of Liner” in this Chapter.

Disassemble the Cover Ring (5) •

Dismantle split cover ring (5) by removing the hex screws (8) with securing washer (13). CAUTION! Handle with care! Do not use wedge-shaped tools for separating of casing rings (5), (4), (3), (38) and (2).

•

Remove the sealing ring #1 (31) out of the housing ring (4). CAUTION! Handle with care! Remove the sealing rings carefully in case that they should be used again.

6.4.1.3

6.4.1.4

Disassemble the Housing Ring (4) •

Dismantle housing ring (4) by removing the hexagon socket head cap screws (93) with securing washers (13).

•

Remove the sealing ring #2 (6) out of the housing ring (3).

Disassemble the Housing Ring (3) •

Dismantle housing ring (3) by removing the hexagon socket head cap screws (93) with securing washers (13).

•

Remove the circulator (24) from housing ring (3) to the inside, if necessary only.

•

Remove the O-ring (32) out of the housing ring (38)

•

Remove the sealing ring #3R (6) out of the housing ring (38).

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6.4.1.5

6.4.2

Disassemble the Housing Ring (38) and Flange Ring (2) •

Dismantle housing ring (38) by removing the hexagon socket head cap screws (9) with securing washers (13).

•

Remove the 2x O-rings (32) out of the flange ring (2).

•

Remove the sealing ring #3 (6) out of the flange ring (2).

Exchange the Sealing Rings of the aft Seal in the Workshop

NOTE! Replace all Elastomer parts and washers as mentioned in the chapter “MAINTENANCE” •

Clean all housing rings.

NOTE! Do not disassemble split housing rings if not necessary, if any. •

Clean the visible part of the notched cylindrical pins (90) installed in the casing rings, replace them if they are corroded.

New sealing rings shall be inserted and subsequently the individual casing rings shall be firmly re-bolted with each other as described below.

CAUTION! Handle with care! The sealing rings may be made from different material with different shape. It must be ensured that all sealing rings are fitted in the correct order. CAUTION! Handle with care! Check that all sealing rings are equipped with a rubber coated spring at their lips.

NOTE! The sealing rings must be “clicked in”. Check for proper fitting of each single sealing ring after mounting it.

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6.4.3

Reassemble the aft Seal in the Workshop

6.4.3.1

Reassemble the Housing Ring (38) and Flange Ring (2)

6.4.3.2

6.4.3.3

6.4.3.4

•

Click in the sealing ring #3 (6) into of the flange ring (2).

•

Insert the 2x O-rings (32) into the flange ring (2), fix them with grease.

•

Mount housing ring (38) with the hexagon socket head cap screws (9) and securing washers (13).

•

Click in the sealing ring #3R (6) into of the housing ring (38).

•

Insert the O-ring (32) into the housing ring (38), fix it with grease.

Reassemble the Housing Ring (3) •

Insert the circulator (24) into housing ring (3) from the inside, if removed before.

•

Mount housing ring (3) with the hexagon socket head cap screws (93) and securing washers (13).

•

Click in the sealing ring #2 (6) into of the housing ring (3).

Reassemble the Housing Ring (4) •

Mount housing ring (4) with the hexagon socket head cap screws (93) and securing washers (13).

•

Click in the sealing ring #1 (31) into of the housing ring (4).

Reassemble the Cover Ring (5) •

6.4.3.5

Mount split cover ring (5) with the hexagon screws (8) and securing washers (13).

Reassemble the aft Liner •

Coat the aft seal casing externally with primer and final coat, if not made of bronze.

•

Oil the liner (1) and slide it carefully into the casing. CAUTION! Handle with care! Check from the sterntube/thruster side of the seal that all lips are putting over the liner (1) correctly when sliding it in, use a spoon for assistance if needed.

•

Fit the insert rings (30) into the groove of the liner, if any.

•

Mount the mounting straps (16) using the socket head cap screws (14) and hexagon screws (88).

•

Assembly the aft S.C.-seal in accordance with Chapter “INSTALLATION”.

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6.4.4

Disassemble the forward Seal in the Workshop

6.4.4.1

Disassemble the forward Liner

6.4.4.2

•

Remove hexagon screws (14) from cover ring (4) to loosen the liner (1).

•

Pull the liner (1) carefully out of the casing.

•

Clean up the liner (1) and remachine the running surface if necessary. See also Section “Remachining of Liner” in this Chapter.

Disassemble the Housing Rings •

Dismantle cover ring (4) by removing the hex screws (8) with securing washers (13). CAUTION! Handle with care! Do not use Wedge-shaped tools for separating of casing rings (4), (3) and (2).

•

Remove the sealing ring V2 (5) out of the housing ring (3). CAUTION! Handle with care! Remove the sealing rings carefully in case that they should be used again.

•

Dismantle housing ring (3) by removing the hexagon socket head cap screws (9) with securing washers (13).

•

Remove the sealing ring V1 (5) out of the flange ring (2).

•

Remove the circulator (22) from housing ring (3) to the inside, if necessary only. CAUTION! Handle with care! Remove the circulator (22) carefully in case that it should be used again.

6.4.5

Exchange the Sealing Rings of the forward Seal in the Workshop

NOTE! Replace all Elastomer parts and washers as mentioned in the chapter “MAINTENANCE”

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•

Clean all housing rings (4), (3) and (2).

•

Clean the visible part of the notched cylindrical pins (90) installed in the casing rings, replace them if they are corroded.

New sealing rings (5) shall be inserted and subsequently the individual casing rings shall be firmly re-bolted with each other as described below.

CAUTION! Handle with care! Check that all sealing rings (5) are equipped with a rubber coated spring at their lips.

NOTE! The sealing rings must be “clicked in”. Check for proper fitting of each single sealing ring after mounting it.

6.4.6

Reassemble the forward Seal in the Workshop

6.4.6.1

Reassemble the Housing Rings

6.4.6.2

•

Insert the circulator (22) into housing ring (3) from the inside, if removed before.

•

Click in the sealing ring V1 (5) into of the flange ring (2).

•

Mount housing ring (3) with the hexagon socket head cap screws (9) with securing washers (13).

•

Click in the sealing ring V2 (5) into of the housing ring (3).

•

Mount cover ring (4) with the hexagon socket head cap screws (8) with securing washers (13).

Reassemble the forward Liner •

Coat the aft seal casing externally with primer and final coat, if not made of bronze.

•

Oil the liner (1) and slide it carefully into the casing. CAUTION! Handle with care! Check from the sterntube side of the seal that all lips are moving correctly over the liner (1) when sliding it in, use a spoon for assistance if needed.

•

Fix the liner (1) using the hexagon screws (14) at the cover ring (4).

•

Assembly the aft S.C.-seal in accordance with Chapter “INSTALLATION”.

Blohm +Voss Industries GmbH Page 110 / 122 E_SC2 MZ + Z.DOC

Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

SC2 MZ + SC2 Z – Installation and Operating Manual REPAIR

6.5

Remachining of Liners NOTE! For all sizes of S.C.-seal it is permissible for repair purposes to machine and grind the liner to the measurement " D - x". For every 1 mm reduced diameter of the liner the inlaid springs of the sealing rings must be shortened by approx. 3 mm. CAUTION! Handle with care! An exception to this are those S.C.-seal types which have the letter "C" in their designation since those liners are ceramic-coated (e.g. SC 2 BC).

6.5.1

Sketch: Skimming of aft Liner If the running surface of aft seal liner shows big running-in wear or pittings, it must be remachined.

Fig. 60:

Skimming of liner

Type: aft liner, non split

Blohm + Voss Industries GmbH Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

Page 111 / 122 E_SC2 MZ + Z.DOC

SC2 MZ + SC2 Z – Installation and Operating Manual REPAIR

6.5.2

Sketch: Skimming of forward Seal Liner If the running surface of forward seal liner shows big running-in wear or pittings, it must be remachined.

Fig.. 61:

6.5.3

Skimming of liner

Type: forward liner, non split

Table for Skimming of aft and forward Seal Liners Size D (mm)

125

140

160

180

200

220

240

260

280

300

330

355

380

X max. (mm)

2,5

2,5

2,5

2,6

2,6

2,7

2,7

2,8

2,8

2,9

3

3

3,1

Size D (mm)

400

420

450

480

500

530

560

600

630

670

710

750

800

X max. (mm)

3,1

3,2

3,3

3,4

3,4

3,5

3,6

3,7

3,8

3,9

4

4,1

4,2

Size D (mm)

850

900

950

975

1000

1030

1060

1090

1120

1180

1250

X max. (mm)

4,4

4,5

4,6

4,6

4,8

4,8

4,9

4,9

5

5,2

5,4

Tab. 6:

Skimming dimensions for liners

Type: split and non-split seals

Blohm +Voss Industries GmbH Page 112 / 122 E_SC2 MZ + Z.DOC

Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

SC2 MZ + SC2 Z – Installation and Operating Manual REPAIR

6.5.4

Skimming of Liners

NOTE! We recommend remachining the small liners up to size 330 on a horizontal lathe, from size 355 and above we recommend to remachine the liners on a vertical lathe due to deforming of the liner (1). •

Dismantle the liner (1) from seal housing.

NOTE! The details about dismantling the liner is described in the chapter „REPAIR“. •

Load the liner (1) with its flange into the chuck of the lathe. CAUTION! Handle with care! The liner (1) may not be deformed when fixing with the chuck of the lathe.

•

•

Align the line conscientious, meaning against “0” if possible: •

Check the concentricity inside of the 2x groves for the insert rings, meaning at two positions (for shaft centered liners only). This is the base for the following measurement and machining.

•

Check the axial concentricity at the front face of liner.

•

Check the concentricity of outside dia at the beginning and at the end of the running surface, meaning at two positions.

Turn off the liner outline (note grinding allowance) until the running in grooves and possible existing pittings or shrink holes are gone, but max. up to the value (D-x) given in the following table plus two times the grinding allowance (approx. 2x 0,1mm).

NOTE! The dimension “x” given in the table is given in relation of the seal size “D”. •

Grind the running surface spiral free with the surface quality given in the above sketch, but max. up to the value (D-x) given in the table above.

Blohm + Voss Industries GmbH Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

Page 113 / 122 E_SC2 MZ + Z.DOC

SC2 MZ + SC2 Z – Installation and Operating Manual REPAIR

CAUTION! Handle with care! The surface of the liner must have no spirals (like fine thread) after grinding, to avoid a transport of liquid from one chamber into an other during operation. •

Clean the liner (1) from grit.

•

Check the final concentricity of outside dia at the beginning and at the end of the running surface, meaning at two positions.

•

Record the concentricity and the new outer dia of liner (1).

The liner (1) is ready for reassembly as described in the chapter „REPAIR“.

6.5.5

Shortening the Springs of Sealing Rings •

Remove the rubber coated spring carefully out of the nut from the sealing ring lip.

•

Look out for the lock of the rubber coated spring and open it by turning the ends counter clockwise.

•

Shorten the springs at the female side (for every 1 mm reduced diameter of the liner) by approx. 3 mm.

•

Close the lock of the rubber coated spring by turning the ends clockwise.

•

Put the rubber coated spring carefully over the nut from the sealing ring lip.

Blohm +Voss Industries GmbH Page 114 / 122 E_SC2 MZ + Z.DOC

Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

7

TROUBLESHOOTING WARNING! Danger of injury or mortal danger! Always prevent the shaft from turning when working on the seal.

CAUTION! Handle with care! If there is leakage, check the seal unit in general as soon as possible.

B

7.1

Naming of Sealing Rings Propeller side

Sterntube side

#1

#2 I

Fig. 62a:

#3R II

#3

III

Sterntube side

V1

(Ring)

X

(Chamber)

Naming of Sealing Rings aft Seal Type: SC2 MZ

V2

Fig. 62b:

(Ring) (Chamber)

Naming of Sealing Rings forward Seal Type: SC2 Z

Blohm + Voss Industries GmbH Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

Page 115 / 122 E_SC2 MZ + Z.DOC

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

7.2

Sterntube (oil filled)

No. Problem

1

Temperature of sterntube bushes too high. Max operating temp. 65°C . Alarm temperature 75°C .

2

Oil pressure within the sterntube drops suddenly. (or)

Oil level for sterntube drops suddenly.

Possible cause

Remedy

Sterntube bushes damaged.

•

Reduce speed of main engine.

•

Contact Blohm + Voss Industries Service.

Defects of oil cooler or thermometer.

•

Repair or renewal of defective parts.

Defects of piping or valves.

•

Check piping and setting of valves.

Deterioration of oil quality (water).

•

Check sterntube lube oil for water content.

•

Recover sterntube lube oil.

Heavy vibrations due to propeller damage.

•

Reduce speed of main engine.

•

Repair in dry-dock a.s.a.p.

Oil pump or pressure gauge damaged.

•

Repair or renewal of defective parts.

Defects of piping or valves.

•

Check piping and setting of valves.

Sealing rings V1 and V2 of forward seal are damaged due to wrong oil brand.

•

Change oil brand in sterntube and in forward seal tank.

•

Replace sealing rings V1 and V2.

Clamp ring (6) of forward liner coming off or loose.

•

Realign clamp ring (6) and liner (1).

Adjust clamp ring (6) first and fasten with screws (17), then fasten liner(1) by screws (15). Sealing ring #3 of aft seal is damaged.

After consultation of Blohm + Voss Industries Service, emergency measure to keep the seal in operation: •

Lower gravity tank.

•

Fill sterntube with higher viscosity oil.

•

Replace all sealing rings of aft seal in drydock.

•

Remachine aft liner (1) if necessary.

Blohm +Voss Industries GmbH Page 116 / 122 E_SC2 MZ + Z.DOC

Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

3

Oil level in gravity tank is decreasing by several L / day.

Oil loss at forward seal.

a) At losses up to 1% of the seal size in L/day: •

Observe oil level in gravity tank and refill if necessary.

b) At higher losses above 1% of the seal size in L/day, to keep the seal in operation: •

Close all openings at tank of forward seal by plug.

The life time of sealing ring V2 under these conditions is limited!

Oil loss at aft seal.

•

Replace sealing rings V1 and V2 of forward seal.

•

Remachine forward liner (1) if necessary.

a) At losses up to 1% of the seal size in L/day: •

observe oil level in gravity tank and refill if necessary.

b) At higher losses above 1% of the seal size in L/day, after consultation of Blohm + Voss Industries Service, emergency measure to keep the seal in operation:

An oil consumption < 1% of seal size is to be considered as normal.

4

Oil level in gravity tank is increasing by several L / day.

(optional)

Tab. 7:

•

Check the emergency tank for deactivating.

•

Lower gravity tank.

•

Fill sterntube with higher viscosity oil.

•

Replace all sealing rings of aft seal in drydock.

•

Remachine aft liner (1) if necessary.

Bad alignment of aft liner (1).

•

Check alignment of aft liner (1) during next drydocking.

Gravity tank installed too low.

•

Check sealing ring load, contact Blohm + Voss Industrietes Service.

•

Raise gravity tank if necessary.

Bad alignment of aft liner (1).

•

Check alignment of aft liner (1) during next drydocking.

Leakage at CP-propeller unit.

•

Check CP-propeller unit.

Troubleshooting SIMPLEX

Sterntube (oil filled) Leakproof

Blohm + Voss Industries GmbH Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

Page 117 / 122 E_SC2 MZ + Z.DOC

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

7.3

Emulsion in Sterntube (oil filled)

No. Problem

5

Oil / sea water emulsion in the sterntube.

Possible cause

Remedy

Water penetration into the sterntube due to aft seal failure.

a) At small ingress of water 1% to 5%: •

Observe water content in sterntube oil.

•

Recover sterntube lube oil if necessary.

b) At heavy ingress of water (above5%), after consultation of Blohm + Voss Industries Service, emergency measure to keep the seal in operation: •

Activate the emergency tank.

•

Recover sterntube lube oil. •

Foreign particles as i.e. nets or ropes in aft seal.

Afterwards watch for pumping effect of water into oil: •

When pumping action is decreasing, then same measure as a).

•

When pumping action is constant, then repair aft seal in dry-dock.

Hex-plug (12) or (33) of aft seal leaky.

•

Check hex-plug (12) or (33).

Sealing rings of aft seal damaged.

•

Replace all sealing rings of aft seal.

•

Remachine aft liner (1) if necessary.

•

Assemble aft seal properly.

•

Replace O-Ring (17).

•

Check gasket (81) and (80), replace if necessary.

By diver

Aft seal wrongly assembled.

In drydock

O-Ring (17) between aft liner (1) and propeller leaky. Gasket (81) at liner flange or gasket (80) at flange ring (2) of aft seal leaky, damaged or not fasten. Oil / water emulsion in the sterntube.

Tab. 8:

Remove nets or ropes.

Water leakage from aft peak tank.

Trouble shooting SIMPLEX

•

Check aft peak tank for cracks.

•

Recover sterntube lube oil if necessary.

Emulsion in Sterntube (oil filed) Leakproof

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Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

7.4

Aft Seal, Type MZ

No. Problem

6

Overflow of aft seal tank.

Possible cause

Remedy

If oil only in the tank:

a) at losses up to 1% of the sealing size in L/day):

sealing ring #3 damaged.

•

observe oil level in tanks and refill if necessary.

b) at higher losses above 1% of the seal size in L/day, measures to keep the seal in operation:

If seawater and oil in the tank: sealing ring #2 damaged.

•

Close the valve Z3 in the pipe lines beween chamber III and aft seal tank to activate the spare sealing ring #3R.

•

Close the valves Z1 and Z2 in the pipe lines beween chamber II and aft seal tank if the previous step has no efect.

•

Replace all sealing rings #1, #2, #3R and #3 of aft seal in drydock.

•

Remachine aft liner (1) if necessary.

a) at losses up to 1% of the sealing size in L/day): •

observe oil level in tanks and refill if necessary.

b) at higher losses above 1% of the seal size in L/day, after consultation of B+V Industrietechnik Service, emergency measures to keep the seal in operation: •

Close the valves Z1 and Z2 in the pipe lines beween chamber II and aft seal tank.

•

Activate the Emergency Tank.

•

Replace all sealing rings #1, #2, #3R and #3 of aft seal in drydock.

•

Remachine aft liner (1) if necessary.

•

Close the valves Z1 and Z2 between chamber II and aft seal tank.

•

Activate the Emergency Tank.

(or) Hex-plug (12) or (33) leaky

•

Check hex-plug (12) and (33) by diver.

Bad alignment of aft liner (1).

•

Check alignment of aft liner (1) during next dry-docking.

Sealing rings #2, #3R and #3 damaged due to non approved oil brand.

•

Recover oil in sterntube system and in the tanks of the seals.

•

Replace all sealing rings #1, #2, #3R and #3 of aft seal in drydock.

If seawater and oil in the tank: sealing ring #2 damaged.

Blohm + Voss Industries GmbH Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

Page 119 / 122 E_SC2 MZ + Z.DOC

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

•

Check sealing ring load, contact Blohm + Voss Industries Service.

•

Raise gravity tank if necessary or activate the Emergency Tank..

•

Refill aft seal tank with oil.

•

Avoid resonance speed of shaft.

•

If necessary, convert seal i.e. with Peak Pressure Absorber (PPA).

Bad alignment of aft liner (1).

•

Check alignment of aft liner (1) during next drydocking.

Sealing rings #2, #3R and #3 damaged due to non approved oil brand.

•

Recover oil in sterntube system and in the tanks of the seals.

•

Replace all sealing rings #1, #2, #3R and #3 of aft seal in drydock.

Installation of aft seal tank arranged too height

•

Check sealing ring load, contact.

•

Lower the tank of aft seal if necessary or deactivate the Emergency Tank..

Oil pipe within the sterntube leaky.

•

Seal oil pipes during next drydocking.

Oil pipes faulty, drain open.

•

Check oil pipes and drain.

•

Refill aft seal tank with oil.

•

Refill aft seal tank with oil.

•

Avoid resonance speed of shaft.

•

If necessary, convert seal i.e. with Peak Pressure Absorber (PPA).

•

Recover oil in sterntube system and in the tanks of the seals.

•

Replace circulator (24) at aft seal in drydock.

Gravity tank installed too low.

Pumping effect at aft seal due to axial vibration of the shaft.

7

Oil level of aft seal tank reduces several L / day.

Pumping effect at aft seal due to axial vibration of the shaft. An oil consumption < 1% of seal size is to be considered as normal.

8

No oil circulation between seal and aft seal tank.

Circulator (24) damaged due to non approved oil brand.

Pipes between seal tank and aft • seal tank blocked.

Vent valve Z5 open.

Tab. 9:

Trouble shooting SIMPLEX

Clean pipes between seal and aft seal tank.

•

Check alignment of aft seal packing (80) during next drydocking.

•

Close vent valve Z5.

Aft seal type MZ

Blohm +Voss Industries GmbH Page 120 / 122 E_SC2 MZ + Z.DOC

Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

7.5

Forward seal, Type Z

No. Problem

9

10

Fwd seal is leaking during operation

Forward seal tank overflows.

Possible cause

Remedy

Misalignment of clamp ring (6) and liner (1)

•

Clamp ring (6) slipped.

Adjust clamp ring (6) first and fasten with screws (17), then fasten liner (1) by screws (15).

O-Ring (16) between liner and clampring leaky.

•

Replace O-ring (16).

Flat gasket (82) at flange ring (2) of aft seal leaky, damaged or not fasten.

•

Check flat gasket (82), replace if necessary.

Sealing rings V1 and V2 are damaged due to wrong oil brand.

•

Change oil brand in sterntube and in forward seal tank.

•

Replace sealing rings V1 and V2 with bonding device.

Sealing rings V1 and V2 are damaged due to damaged liner (1) surface.

•

Remachine liner (1) if necessary.

Sealing ring V1 damaged.

a) At losses up to 1% of the seal size in L/day: •

Realign clamp ring (6) and liner (1).

Observe oil level in gravity tank and refill if necessary.

b) At higher losses above 1% of the seal size in L/day, to keep the seal in operation: •

Close all openings at tank of forward seal by plug.

The life time of sealing ring V2 under this conditions is limited!

Misalignment of clamp ring (6) and liner (1)

11

Forward seal tank oil level decreasing.

•

Replace sealing rings V1 and V2 of forward seal with bonding device.

•

Remachine forward liner (1) if necessary.

•

Realign clamp ring (6) and liner (1).

Clamp ring (6) of forward liner coming off or loose.

Adjust clamp ring (6) first and fasten with screws (17), then fasten liner (1) by screws (15).

Sealing ring V2 damaged.

•

Fill up forward seal tank with oil.

•

Replace sealing rings V1 and V2.

•

Remachine liner (1) if necessary.

Blohm + Voss Industries GmbH Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

Page 121 / 122 E_SC2 MZ + Z.DOC

SC2 MZ + SC2 Z – Installation and Operating Manual TROUBLESHOOTING

Misalignment of clamp ring (6) and liner (1)

•

Realign clamp ring (6) and liner (1).

Adjust clamp ring (6) first and fasten with screws (17), then fasten liner (1) by screws (15). An oil consumption < 1% of seal size is to be considered as normal.

Defects of piping or drain open.

•

Check piping and setting of valves.

•

Fill up forward seal tank with oil.

12

Heavy oil losses through the Sealing rings V1 and V2 are forward seal. damaged.

•

Replace sealing rings V1 and V2 with bonding device.

13

Fwd seal runs hot.

No oil in tank for forward seal.

•

Fill up forward seal tank with oil.

Load at sealing ring V1 too high.

•

Check sealing ring load, contact Blohm + Voss Industries Service.

•

Lower gravity tank or raise tank of forward seal if necessary

Perbunan > 60°C Viton > 110°C

Tab. 10:

Trouble shooting SIMPLEX

Forward seal type Z

Blohm +Voss Industries GmbH Page 122 / 122 E_SC2 MZ + Z.DOC

Hermann-Blohm-Straße 5, D-20457 Hamburg Rev. 04.01.2007

LUBRICATION RECOMMENDATION

Chapter 195-3

LUBRICATION OIL LIST FOR STERN TUBE SEALS

The SIMPLEX-COMPACT seal is fitted with sealing rings of NBR ( Perbunan ) or FKM ( Viton ) depending on the operating conditions.

The following list is an recommendation list regarding stern tube seals only. It is inapplicable to the behaviour with regards to gears, clutches, roller bearings or other components of the propulsion system. The technical data has been provided by the oil companies.

The suitable sealing material is given for every oil listed and marked correspondingly " x ".

Oils marked with " * " have to be used in consultation with Blohm + Voss Industries only due to restriction in application.

Oils marked with " ** " are, in particular, environmentally friendly lubricants. The usage is currently limited, therefore the oils should be used in consultation with Blohm + Voss Industries only.

We ask to inform us if oils / lubricants which are not listed are to be used. We shall test these lubricants accordingly.

Blohm + Voss Industries GmbH E_195-3

Page 1 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

Other

Bio Oil

Engine Oil

Hydraulic Oil

Visc. General use: cSt. 40°C

FKM (Viton)

Product Name

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Gear Oil

for use with

Agip Acer 100

x

x

Cladium 120 SAE30

x

x

30

108

100 x

x

x

Cladium 400 SAE30

x

30

108

x

Cladium 400 SAE40

x

40

160

x

Cladium 50 SAE30

x

30

108

x

Ote 68

x

Ote 80

x

64

x

x

80

x

x

Bartran 320 Bartran 460

x

318

x

x

460

x

66

BP

Bartran HV 68

x

x

Bartran HV 100

x

x

Energol DL-MP 30

x

x

x x

30

110

x

Energol DL-MP 40

x

x

40

148

x

Energol DS 3-153

x

x

30

110

x

Energol DS 3-154

x

x

40

148

x

Energol GR-XP 68

x

x

66

x

Energol GR-XP 100

x

x

96

x

Energol GR-XP 150

x

x

152

x

Energol GR-XP 220

x

x

x

Energol GR-XP 680

x

x

x

Energol HLP 46

x

x

46

x

Energol HLP 68

x

x

69

x

Energol HLP 100

x

x

96

x

Energol THB 68

x

x

68

x

Energol THB 100

x

x

96

x

Energol IC-HFX 203

x

x

30

102

x

Energol IC-HFX 204

x

x

40

138

x

Energol IC-HFX 303

x

x

30

110

x

Energol IC-HFX 304

x

x

40

148

x

Energol IC-HFX 403

x

x

30

110

x

Energol IC-HFX 404

x

x

40

148

x

Energol IC-HFX 504

x

x

30

148

x

Energol OE-HT 30

x

x

30

110

x

Blohm + Voss Industries GmbH E_195-3

Page 2 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

Visc. General use: cSt. 40°C

150

Regal Marine 77

x

x

77

x

Regal Oil R&O 100

x

x

96

x

Regal Oil R&O 68

x

x

66

x

RPM Delo 100 Oil 20-20W

x

x

20/20W

61

x

RPM Delo 100 Oil 30

x

x

30

94

x

RPM Delo 300 Oil 20-20W

x

x

20/20W

60

x

Other

x

Bio Oil

x

Gear Oil

FKM (Viton)

Meropa Lubricant 150

Product Name

Engine Oil

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Hydraulic Oil

for use with

Caltex ( Chevron Corp. ) x

RPM Delo 300 Oil 30

x

x

30

97

x

Delo 1000 Marine Oil 30

x

x

30

110

x

Delo 2000 Marine Oil 30

x

x

30

102

x

Delo 3000 Marine Oil 30

x

x

30

107

x

Delo 3000 Marine Oil 40

x

x

40

152

x

215 MX Super

x

x

30

103

x

220 MX Super

x

x

40

136

x

Castrol

Alpha SP 68

x

x

68

x

Alpha SP 100

x

x

100

x

Alpha SP 150

x

x

150

x

Alpha SP 220

x

x

220

x

Alpha ZN 100

x

x

100

x

Alpha ZN 150

x

x

150

x

Alpha ZN 68

x

x

68

x

Coral 2

x

x

222

Hyspin AWH - M100

x

x

Castrol CDX 30

x

x

30

103

x

Marine MLC 30

x

x

30

107

x

x

40

139

x

Marine MLC 40

x

100

x

Castrol MPX 30

x

x

30

103

x

Nato 0-274

x

x

30

101

x

Perfecto T 68

x

x

68

x

Perfecto T 100

x

x

RX Super 30

x

x

30

108

x

MHP 153

x

x

30

102

x

x

40

136

x

MHP 154

Blohm + Voss Industries GmbH E_195-3

96

x

Page 3 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

30

102

x

x

40

140

x

TLX Plus 303

x

x

30

103

x

TLX Plus 304

x

x

40

139

x

TLX Plus 403

x

x

30

103

x

TLX Plus 404

x

x

40

139

x

TLX Plus 504

x

x

40

139

x

Delo 1000 Marine Oil

x

x

30

112

x

Delo 2000 Marine Oil

x

x

30

106

x

Delo 3000 Marine Oil

x

x

30

104

x

Gear Compound EP 100

x

x

100

x

Gear Compound EP 150

x

x

150

x

Other

x

x

Bio Oil

x

TLX Plus 204

Gear Oil

TLX Plus 203

Product Name

Engine Oil

FKM (Viton)

Visc. General use: cSt. 40°C

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Hydraulic Oil

for use with

Chevron ( FAMM distribution )

Mechanism LPS 46

x

46

x

Mechanism LPS 68

x

x

68

x

Turbine Oil GST 100

x

x

100

Turbine Oil GST 68

x

x

Veritas 800 Marine 30

x

x

Pinnacle Marine Gear 220

x

68 30

114

x x

x

220

x

Aquamarine Oil 46 **

x

46

x

x

Aquamarine Oil 68 **

x

68

x

x

Citgo

ExxonMobil ( ex Esso and Mobil Oil ) Essolube X 3 SAE 30

x

x

30

103

x

Essolube X 3 SAE40

x

x

40

149

x

Exxmar 12 TP 30

x

x

30

110

x

Exxmar 12 TP 40

x

x

40

146

x

Exxmar 30 TP 30

x

x

30

110

x

Exxmar 30 TP 40

x

x

40

146

x

Exxmar XA

x

x

30

110

x

Nuto H 68

x

x

Blohm + Voss Industries GmbH E_195-3

68

x

Page 4 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

100

x

x

150

x

Spartan EP 220

x

x

220

x

Spartan EP 320

x

320

x

Stermar 220

x

220

Other

x

x

Bio Oil

x

Spartan EP 150

Gear Oil

Spartan EP 100

Product Name

Engine Oil

FKM (Viton)

Visc. General use: cSt. 40°C

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Hydraulic Oil

for use with

x

Teresstic 32

x

x

32

Teresstic 68

x

x

68

x x

UNIVIS N 100

x

x

100

98

x

Mobil Delvac 1330

x

x

30

106

x

Mobil Delvac 1340

x

x

40

145

x

Mobil Delvac 1630

x

30

90

x

Mobil Delvac 1640

x

40

132

x

Mobil DTE 15 M

x

x

Mobil DTE 16M

x

x

68

x

Mobil DTE 18M

x

x

100

x

Mobil DTE 19M

x

x

150

x

Mobil DTE Oil Extra Heavy

x

x

146

x

Mobil DTE Oil Heavy

x

x

95

x

Mobil DTE Oil Heavy Medium

x

x

65

x

Mobil DTE Oil BB

x

x

218

x

46

50

x

Mobilgard M50

x

x

40

142

Mobilgard 300

x

x

30

111

Mobilgard 312

x

x

30

108

x

Mobilgard 340

x

x

30

106

x

Mobilgard 412

x

x

40

142

x

Mobilgard M 440

x

x

40

143

x

Mobilgard M 430

x

x

30

143

x

Mobilgard M 330

x

x

30

112

x

Mobilgard 570

x

x

50

229

Mobilgard ADL 40

x

x

40

141

Mobil Sterntube Lubricant *

x

x x

x x

385

x

Mobilgear 626

x

x

68

x

Mobilgear 627

x

x

100

x

Mobilgear 627

x

x

100

x

Mobilgear 629

x

x

150

x

Mobilgear 630

x

x

220

x

Mobilgear 600 XP 68

x

x

68

x

Blohm + Voss Industries GmbH E_195-3

Page 5 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

100

x

x

150

x

Mobilgear 600 XP 220

x

x

220

x

Mobilgear 600 XP 320

x

x

320

x

x

220

x

x

320

x

x

150

Mobilgear SHC XMP220 * Mobilgear SHC XMP320 * Mobil Vacuoline 528

x

Other

x

x

Bio Oil

x

Mobilgear 600 XP 150

Gear Oil

Mobilgear 600 XP 100

Product Name

Engine Oil

FKM (Viton)

Visc. General use: cSt. 40°C

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Hydraulic Oil

for use with

x

Fuji Kosan Fukkol AD Turbine 68

x

x

68

Fukkol Hydrol X-100

x

x

100

x

Fukkol Marine 312

x

x

30

106

x

Fukkol Marine 320

x

x

30

105

x

Fukkol SAE ACE 307

x

x

30

107

x

x

Gorgonela S 30

x

x

30

106

x

x

x

Gorgonela S 40

x

x

40

147

x

x

x

Rubella 30

x

x

30

107

x

x

x

Rubella 40

x

x

40

148

x

x

x

Sagartia 30

x

x

30

106

x

x

x

Sagartia 40

x

x

40

147

x

x

x

Turbo 32

x

x

32

x

Turbo 46

x

x

46

x

x

General Sekiyu K.K. See ExxonMobil Products

Idemitsu Daphne Super Gear Oil

150

x

Ina Maziva Rijeka Croatia

Blohm + Voss Industries GmbH E_195-3

Page 6 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

Marine MTX 1230

x

Other

x

Bio Oil

x

Hydraulic Oil

FKM (Viton)

Marine LSX 530

Product Name

Visc. General use: cSt. 40°C

Gear Oil

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Engine Oil

for use with

Irving Oil

Marine MTX 1240

30

103

x

x

30

107

x

x

40

139

x

Marine MTX 2030

x

x

30

100

x

Marine MTX 2040

x

x

40

140

x

Marine MTX 3030

x

x

30

103

x

Marine MTX 3040

x

x

40

139

x

Marine MTX 4030

x

x

30

103

x

Marine MTX 4040

x

x

40

139

x

Marine MTX 5040

x

x

40

139

x

x

x

30

103

x x

Kendall Noviol b.v. F-L Select Motor Oil F-L Select Motor Oil 20W20

x

x

20/W20

68,2

Kenoil R&O AW 68

x

x

20/W20

67,6

Super-D III Series 3 Motor Oil

x

x

30

106,4

Vaihteisto 220 EP

x

x

220

x

Vaihteisto 320 EP

x

x

305

x

x x

Kyodo Oil Co. / Japan Energy Corp. See TOTAL LUBMARINE / INDUSTRIE

NESTE

Nippon Oil Co. Diamond Marine T 104 Diamond Marine T 203 A Diamond Marine T 303 A

x

Diamond Marine T 304 A

x

30

96

x

x x

40

145

x

30

95,5

x x

x

40

141

MDL PS 30 (ren. Super MDL PS 30)

x

x

30

106

MDL HDS 30 (ren. Super MDL HDS 30)

x

x

30

109

Blohm + Voss Industries GmbH E_195-3

Page 7 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

Other

Bio Oil

x

Hydraulic Oil

x

Visc. General use: cSt. 40°C

Gear Oil

FKM (Viton)

Product Name

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Engine Oil

for use with

Petrobras Distribuidora Lubrax MD-300 SAE 30

30

113

x

Lubrax MD-400 SAE 30

x

x

30

111

x

Marbrax CAD-308

x

x

30

103

x

Marbrax CAD-65-OF

x

x

30

114

x

Marbrax CCD-310

x

x

30

109

x

Marbrax CCD-320

x

x

30

109

x

Marbrax CCD-330

x

x

30

114

x

Marbrax TR-86

x

x

111

Marbrax HV-68

x

x

68

x x

Reginol Gear Gl 1

x

x

Hykraft 150

x

x

Hykraft 68

x

Industrygear EP 100

x

80

142

x

137 20

x

64

x

99

x

Shell Argina S 30

x

30

104

x

Argina S 40

x

40

139

x

Argina T 30

x

x

30

104

x

Argina T 40

x

x

40

139

x

Argina T 40

x

x

40

139

x

Argina X 40

x

x

40

146

x

Arginia XL 40

x

x

40

139

x

Gadinia 30

x

x

30

104

x

Gadinia 40

x

x

40

139

x

Gadinia AL30

x

x

30

101

x

Gadinia AL40

x

x

40

138

x

Melina 30

x

x

30

104

x

Melina 40

x

x

40

145

x

30

104

x

Melina S 30

x

x

Omala 68

x

x

68

x

Omala 100

x

x

100

x

Omala 150

x

x

150

x

Blohm + Voss Industries GmbH E_195-3

Page 8 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

Omala 220

x

320

x

Rimula 30

x

Sirius 15W-40

x

30

118

x

40

101

x

Other

220

x

Bio Oil

x

Gear Oil

x

Omala 320

Engine Oil

FKM (Viton)

Product Name

Visc. General use: cSt. 40°C

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Hydraulic Oil

for use with

x

Rimula X 15W-40

x

x

40

105

x

Sirius X 30

x

x

30

101

x

Sirius X 40

x

x

40

139

x

Tellus 100

x

x

100

x

Morlina 100

x

100

x

Morlina 46

x

46

x

Tellus T 100

x

x

100

x

Tellus T 68

x

x

68

x

Turbo T 46

x

x

49

x

Turbo T 68

x

x

63

x

Turbo T 78

x

x

76

x

Vitrea 68

x

x

68

x

Vitrea 100

x

x

100

x

Vitrea 220

x

220

x

Omala EPB 150 **

x

150

x

x

Showa Shell Sekiyu K.K. See Shell Products

Statoil Statoil Sternway 220

x

220

x

150

x

x

100

x

Statoil Loadway EP 150

x

Statoil Loadway EP 100

x

Statoil HydraWay HMA 68

x

x

70

x

Statoil HydraWay HMA 100

x

x

100

x

Statoil MarWay 1030

x

x

106

x

Statoil MarWay 1040

x

x

137

x

Blohm + Voss Industries GmbH E_195-3

Page 9 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

110

EnviroLogic 215 Gear Oil **

x

40

150

x

EnviroLogic 210 Gear Oil **

x

30

100

x

EnviroLogic 3100 **

x

30

100

Other

30

Bio Oil

x

Gear Oil

x

Product Name

Engine Oil

FKM (Viton)

Visc. General use: cSt. 40°C

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Hydraulic Oil

for use with

Teboil Teboil Ward L10T

x

Terrosolve x x x

Texaco ( FAMM distribution ) Meropa 100

x

Meropa 150

x x

Meropa 220

x

x

Meropa 320

x

x x

150

Rando HD 68

x

x

68

Regal R&O 100

x

x

92

Regal R&O 68

x

x

Taro 30 DP

x

x

30

99

x

Taro 40 DP

x

x

40

145

x

Taro 16 XD

x

x

40

139

x

Taro 40 XL

x

x

40

145

x

Ursa Oil ED 30

x

x

30

97

x

Ursa Oil ED 40

x

x

40

173

x

Ursa Super Plus 30

x

x

30

102

x

Ursa Super Plus 40

x

x

40

160

x

Atlanta Marine 30

x

x

30

105

x

Atlanta Marine D 3005

x

x

30

105

x

Aurelia XL 3030

x

x

30

110

x

Aurelia XL 3040

x

x

30

110

x

Aurelia XL 4030

x

x

40

140

x

Aurelia XL 4040

x

x

40

140

x

Disola M 3015

x

x

30

110

x

Meropa 460

x x x

68

x

TOTAL LUBMARINE ( ex Elf Marine )

Blohm + Voss Industries GmbH E_195-3

Page 10 / 11 Rev. 07/2007

LUBRICATION RECOMMENDATION

Chapter 195-3

40

145

x

x

30

110

x

Turbine T 100

x

x

30

95

Turbine T 68

x

x

20

71

Elf Epona Z 150

x

x

Rubia H 30

x

x

30

100

x

Rubia H 40

x

x

40

150

x

Rubia S 30

x

x

30

100

x

Rubia S 40

x

x

40

155

x

Other

x

x

Bio Oil

x

Disola MT 30

Hydraulic Oil

Disola M 4015

Product Name

Engine Oil

FKM (Viton)

Visc. General use: cSt. 40°C

NBR (Perbunan)

LUBRICATION OIL LIST

SAE

Gear Oil

for use with

x x

148

x

TOTAL INDUSTRIE

Biohydran TMP 100 **

x

100

x

x

Vickers Leeds Hydrox 21 (2024)

x

50

273

x

Hydrox 550 (2018)

x

x

20/30

70

x

Hydrox 8 EP (2019)

x

x

105

x

Hydrox EP 150

x

150

x

Hydrox Bio 68 **

x

20

68

x

x

Hydrox Bio 100 **

x

30

100

x

x

Hydrox Bio 220 **

x

50

220

x

x

Wisura Dimol HD

x

x

30

105

x

Panta SAE20 Panta SAE30 Panta SAE40

x x x

x x x

20 30 40

60 100 145

x x x

Blohm + Voss Industries GmbH E_195-3

Page 11 / 11 Rev. 07/2007

Drawing List Aft seal

SAC:3-567-0249-000.2

Installation tolerances

7-195-1260-000.

Sterntube lub. oil diagram

acc.shipyard diagram

Oil tank (50l)

SAZ:2-195-3495-000.

Float switch

SAZ:4-195-2121-000.

Net Cutter

7-195-0470-000.

Forward seal

SAC:3-667-0231-000.0

Lub. oil diagram

SAZ:4-195-3962-000.

Oil tank (15l)

SAZ:3-195-4639-000.

Float switch

SAZ:4-195-3912-000.

Telefax Please send back a copy of this completed INSTALLATION RECORD (use one form per sterntube). To: Fax Number

From Telephone

SIMPLEX® Service Department (S243) +49 (40) 3011-1953 _________________ _________________

_________ ________________

Date Fax

INSTALLATION RECORD Shipyard: Hull:

___________________ _________

Ship Name: BVI Order No.:

1. CHECK OF INSTALLATION AND TOLERANCES: Drawing No: ____________________

_______________ KTR ___________

AFT SEAL

Serial No.:___________

Description According drawing Actual measurement Aft seal, design length +/mm mm O: liner eccentricity at chamber II Against 0 mm mm Wear down gauge reading (poker gauge readTop: mm ing) without copper washer Bottom: mm Remark: The liner eccentricity to be measured with dial gauges. Max. values are given on drawing 7-195-1260-000. “DIMENSIONS WITH TOLERANCES”

2. CHECK OF INSTALLATION AND TOLERANCES: Drawing No: ____________________

FORWARD SEAL

Serial No.: ___________

Description According drawing Actual measurement Fwd seal, design length mm mm N: deviation at liner flange mm mm O: liner eccentricity near liner flange Against 0 mm mm Remark: The liner eccentricity to be measured with dial gauges. Max. values are given on drawing 7-195-1260-000. “DIMENSIONS WITH TOLERANCES”

The values are measured under the supervision of:

Sign Yard:

_______________

Sign Owner:

_______________

___________________________

___________________________

Name in CAPITAL LETTERS

Name in CAPITAL LETTERS

Location:

date:

Rev.: 02/2009

_______________

_______________

7-195-1260-001_Installation-Record.doc

SIMPLEX COMPACT SPARE PARTS ORDERING

SPARE PARTS ORDERING All parts / replacements shall be ordered from Blohm + Voss Industries GmbH by furnishing the following information: •

The information marked by * on the cover page

•

Designation of the parts required **

•

Pos.-No. of the parts required **

•

Quantity of the parts required **

** See enclosed drawings in accordance with cover page

Please use the following contacts:

Or one of our worldwide service stations:

Blohm + Voss Industries GmbH

(see enclosed leaflet)

Ship components spares / service Department MS 30 Hermann-Blohm-Straße 5 20457 Hamburg, Germany

Phone:

+49 40 3011 - extension

Fax: Fax:

+49 40 3011 -1987 (seals and separators) +49 40 3196189 (stabilizers, also dept. head)

Company web address: www.bv-industrie.de

Extention -1195

Activities Quotations for seal spare parts

-2120

Rev. 29.05.2007

-2395

Commercial handling of orders for seal spare parts, and Huhn-seals

-2964

Delegating technicans for seals and TURBULO separators

-1684

Commercial and technical handling of orders for seal spare parts

-1283

Commercial handling of orders for seal spare parts

-2967

Commercial and technical handling of spare parts orders and quotations for TURBULO separators

-2308

Guarantee handling and service for stabilizers and steering gears

-1689

Spare parts order processing, delegating technicians for stabilizers and steering gears

-1676

Guarantee handling and service for stabilizers and steering gears

-1276 -1673

Guarantee handling and service, technical consulting and support for seals, TURBULO separators and bearings

-2963

Commercial and technical handling of orders for SIMPLAN seal spare parts

E_ZUSATZ-1

Sales Agents for SIMPLEX and TURBULO PRODUCTS and Service Stations for SIMPLEX Seals Worldwide

A company of ThyssenKrupp Marine Systems

Blohm + Voss Industries

Sales Agents – Worldwide Africa (excl. Egypt)

Croatia

Hong Kong

Middle East (excl. Egypt)

Singapore (continued)

Maritime Propulsion Technologies Ltd. 2 Withens Close Weaverham, Northwich Cheshire CW8 3JJ United Kingdom Fax: +44-1606-85 15 17 Tel.: +44-1606-85 32 28 Mobile: +44-7879-84 38 98 [email protected] www.maritimepro.com Contact: Andy Thomson

Imex Marine d.o.o. Dragonja No. 1 52100 Pula Croatia Fax: +385-52-50 23 30 Tel.: +385-52-50 23 66 Mobile: +385-98-25 49 89 [email protected]

Blohm + Voss Industries (China) Ltd. Room 715-737, 7/F Sun Hung Kai Centre, 30 Harbour Road, Wanchai Hong Kong SAR Fax: +852-25 41 21 71 Tel.: +852-31 81 78 30 [email protected] www.bvi-marine.com.hk

M.I.E. (Overseas) Ltd. via M.I.E. Services Ltd. Fax: +357-25-34 66 26 Tel.: +357-25-88 99 00 [email protected]

Singapore 629021 Singapore Fax: +65-62 66 00 06 Tel.: +65-62 68 88 82 [email protected] www.simplex-marine.com.sg Contact: CJ Ng

Argentina Unión Técnica S.A. - NAUTA Laprida 623 1642 San Isidro/Buenos Aires Rep. Argentina Fax: +54-11-47 42 80 47 Tel.: +54-11-47 43 88 02 [email protected] Contact: Steen Lienhard Ulf Lienhard Hans Dyrzka

Australia Dutton Services (Pty.) Ltd. P.O.Box 119 Melton, Victoria, 3337 Australia Fax: +61-387 46 54 49 Tel.: +61-433 89 82 39 [email protected] Contact: David Dutton

Bahama Islands see USA

Bahrain see Middle East

Bangladesh see Singapore

Belgium see Netherlands

Bermuda Islands see USA

Brazil Metalock Brasil Ltda. Rua da Gamboa 281 20220-321 Rio de Janeiro RJ Brazil +55-21-25 16 55 62 Fax: Tel.: +55-21-25 16 55 61 Mobile: +55-21-78 34 52 86 [email protected] Contact: Capt. Fabio Ruiz

Brunei

Cyprus M.I.E. Services Ltd. The Hawk Building 124 Gladstonos Street 3032 Limassol Cyprus Fax: +357-25-34 56 39 Tel.: +357-25-88 99 99 [email protected] www.miegroup.com.cy Contact: Michael Ajini

Denmark

Morgan Ltd. 29A, Michael Koloni Str. 9000 Varna Bulgaria Fax: +359-52-60 19 05 +359-52-63 12 22 Tel.: +359-52-61 57 09 Mobile: +359-888-21 58 31 +359-888-20 13 43 [email protected] www.morganbg.com Contact: Emil Petrov

Canada see USA

Caribbean Countries see USA

Central America Chile Colombia see USA

China Blohm + Voss Industries (Shanghai) Ltd. Xinzhuang Industry Park No. 318, Yuan Shan Rd. 201108 Shanghai China Fax: +86-21 64 42 20 66 Tel: +86-21 64 42 22 11 [email protected] www.bvi-marine.com.hk

Headquarters

Hedinn HF Storasi 6 210 Gardabaer Iceland Fax: +354-569 21 01 Tel.: +354-569 21 00 [email protected]

India Indonesia

see Singapore

Netherlands B.V. Technisch Bureau Uittenbogaart Brugwachter 13-15 3034 KD Rotterdam The Netherlands Fax: +31-10-414 10 04 Tel.: +31-10-411 46 14 Mobile: +31-6-54 74 80 81 [email protected] www.tbu.nl Contact: H.F. Uittenbogaart

Spain Pasch y Cia S.A. Capitán Haya, 9 28020 Madrid Spain Fax: +34-91-555 13 41 Tel.: +34-91-598 37 60 [email protected] www.pasch.es

Sri Lanka see Singapore

New Zealand

Sweden

Mitchell & Bailie Ltd. P.O. Box 40-219 Glenfield Auckland 1310 New Zealand Fax: +64-9-444 33 29 Tel.: +64-9-444 94 22 Mobile: +64-27-475 94 35 Contact: Anne Bailie [email protected] Alan Bailie [email protected]

Simplex Turbulo System AB P.O. Box 4050 433 04 Jonsered Sweden Fax: +46-31-795 60 94 Tel.: +46-31-795 60 95 Mobile: +46-70-778 10 31 +46-76-898 71 85 [email protected]

Norway

Taiwan

Reed Olsen & Schytz A/S P.O.Box 15 - Lilleaker 0216 Oslo Norway Fax: +47-22 13 30 31 Tel.: +47-22 13 30 30 Mobile: +47-90 09 00 69 Mr. Ivar J. Flinder [email protected] www.ros.no

Soonex Co., Ltd. 10F, No. 57, Sect. 2, Tun Hwa South Road Taipei 10681 Taiwan, R.O.C. Fax: +886-2-27 01 01 57 Tel.: +886-2-27 07 01 37 [email protected] [email protected]

see Singapore A.C.Lemvigh-Müller Kronprinsessegade 26 1306 Copenhagen K. Denmark Fax: +45-33 11 95 97 Tel.: +45-33 11 05 32 Mobile: +45-21 26 15 52 [email protected] www.aclm.dk

Ecuador see USA

Egypt MEMCO Modern Engineering & Marine Co. 12, Karamalli St. Sidi Gaber - Alexandria Egypt Fax: +20-3-545 06 55 Tel.: +20-3-545 45 02 +20-3-542 32 76 [email protected] [email protected] [email protected] Contact: Mrs. Essmat Yacoub Mr. Ahmed Yacoub

Finland

Iran Iraq see Middle East

Israel see Cyprus

Italy Teknomec S.R.L. Via Terenzio 35 00193 Rome Italy Fax: +39-06-68 89 99 23 Tel.: +39-06-68 89 99 1 [email protected]

Japan Bollfilter Japan Ltd. Toroa Kobe Bldg. 7F 4-2-14, Hachiman-dori Chuo-ku, Kobe 651-0085 Japan Fax: +81-78-242 85 15 Tel.: +81-78-242 85 50 [email protected] www.bollfilter.jp

Jordan

ATP-Trading Oy PL 77 00931 Helsinki Finland +358-9-325 08 83 Fax: Tel.: +358-9-325 00 55 Mobile: +358-400-70 10 56 [email protected] www.atp-trading.fi

France

see Singapore

Bulgaria

Iceland

Myanmar

Equimer-Folliard 30, Av. Amiral Lemonnier 78160 Marly-le Roi France Fax: +33-1-39 16 31 94 Tel.: +33-1-39 16 35 80 [email protected]

see Middle East

Korea

Kuwait Lebanon Libya see Middle East

Malaysia (excl. Navy)

Blohm + Voss Industries GmbH Hermann-Blohm-Str. 5 20457 Hamburg Germany +49-40-319 61 89 Fax: +49-40-30 11-19 87 +49-40-30 11-19 53 Tel.: +49-40-30 11-0 [email protected] www.bv-industries.com

see Singapore

Greece M.I.E. Company Limited Kanari 1 Piraeus 185 37 Greece Fax: +30-210-453 92 34 Tel.: +30-210-418 53 01 +30-210-459 88 00 [email protected] www.miegroup.com.cy Contact: Nicholas Kolliarakis

Sales Agents

Pakistan Peru see USA

Blohm + Voss (Korea) Ltd. Room 1830, Ocean Tower 760-3, U-dong Haeundae-gu 612-020 Pusan Republic of Korea Fax: +82-51-740 57 04/5/6 Tel.: +82-51-740 57 01/2/3 [email protected]

Malaysia Navy Blohm + Voss Industries (Malaysia) Sdn. Bhd. 93, Persiaran Venice Sutera 8, Desa Manjung Raya 32200 Lumut, Perak Malaysia Fax: +60-5-688 48 03 Tel.: +60-5-688 48 02 Mobile: +60-19-572 31 25 [email protected] [email protected]

Philippines see Singapore

Portugal Cogema Comércio Geral de Máquinas, Limitada Avenida de Sidónio Pais 28-4° Dto. 1050-215 Lisbon Portugal +351-21-355 74 98 Fax: Tel.: +351-21-355 68 43 +351-21-314 01 62 [email protected] www.cogema.pai.pt

Qatar see Middle East

Romania Danube Rainbow S.R.L. Marine Equipment & Ship Systems 27, Alexandru Cernat Street 800087 Galati Romania Tel./Fax: +40-236-46 39 58 Mobile: +40-722-64 07 97 [email protected] Contact: Victor Ionita

Russia/West

Commercial Vessels see Singapore

Malta Malta Shipyards P.O. Box 581 Valetta CMR 01 Malta +356-21 80 00 21 Fax: Tel.: +356-23 99 30 45 [email protected] www.maltashipyards.com

Ost-West Marine Service L.L.C. 10/2 Dvinskaya Street 4th floor 198035 St. Petersburg Russia Fax: +7-812-324 57 27 Tel.: +7-812-324 57 00 [email protected] www.owms.ru

Saudi Arabia see Middle East

Mexico

Singapore

see USA

Service Stations

see Middle East

Thailand see Singapore

see Middle East

see Singapore

Germany

Blohm + Voss Industries GmbH Rungestrasse 16 18055 Rostock Germany Fax: +49-381-44 86 94 Tel.: +49-381-44 86 93 Mobile: +49-172-380 99 69 [email protected]

Oman

Syria

Simplex Marine Services Pte. Ltd. 13 Joo Koon Crescent 4th Storey

Turkey Izer Denizcilik Ve Gemi San. Dis. Tic. Ltd. Evliyacelebi Mahallesi, Istasyon Caddesi Giptas Sanayi Sitesi D blok No: 24 34944 Tuzla Istanbul Turkey Fax: +90-216-446 87 22 Tel. +90-216-446 87 31 [email protected] www.izerdenizcilik.com.tr After office hours: Tel.: +90-533-249 22 82 Contact: Hasan Izer

United Arab Emirates see Middle East

United Kingdom Simplex-Turbulo Co. Ltd. Wherwell Priory Wherwell Nr. Andover Hampshire SP11 7JH United Kingdom +44-1264-86 01 80 Fax: Tel.: +44-1264-86 01 86 [email protected] www.simplexturbulo.com After office hours: Tel.: +44-1264-86 01 77 Mobile: +44-7917-12 84 74

USA Simplex Americas LLC 20 Bartles Corner Road Flemington, New Jersey 08822 USA Fax: +1-908-237 95 03 Tel.: +1-908-237 90 99 24/7/365 Mobile: +1-908-581 09 00 [email protected] www.simplexamericas.com

Venezuela see USA

Vietnam see Singapore

Yemen see Middle East

Service Stations Argentina

Croatia

Cromwell & Cie. S.A. California 733 1168 Buenos Aires Rep. Argentina Fax: +54-11-43 02 80 16 +54-11-43 02 74 07 Tel.: +54-11-43 01-41 24 +54-11-43 01-41 25 +54-11-43 01-50 69 +54-11-43 01-06 02 Mobile: +54-911-44 15 47 94 +54-911-49 17 71 91 [email protected] www.cromwell.com.ar Contact: F. Orti

Viktor Services d.o.o. Martinscica bb 51000 Rijeka Croatia Fax: +385-51-21 72 29 Tel.: +385-51-21 70 02 Mobile: +385-98-39 43 80 [email protected]

Australia Dutton Services (Pty.) Ltd. P.O.Box 119 Melton, Victoria, 3337 Australia Fax: +61-387 46 54 49 Tel.: +61-433 89 82 39 [email protected] Contact: David Dutton

Bahama Islands see USA

Bahrain Arab Shipbuilding and Repair Yard Co. (ASRY) P.O. Box 50110 Hidd Kingdom of Bahrain Fax: +973-17 67 02 36 Tel.: +973-17 67 11 11 [email protected] [email protected] www.asry.net Service/after office hours: Tel.: +973-39 45 68 77 Contact: Mr. Firmino R. Martins

Bangladesh see Singapore

Belgium see Netherlands

Bermuda Islands see USA

Brazil Metalock Brasil Ltda. Rua Visconte do Rio Branco, 20/26 11013-030 Santos City Sp. Brazil Fax: +55-13 32 26 56 80 Tel.: +55-13 32 26 46 86 Mobile: +55-13 78 04 49 77 [email protected] www.metalock.com.br Contact: Paul Barton Jim Marshall

Brunei see Singapore

Canada see USA

Chile ASMAR Shipbuilding and Docking Co. Base Naval P.O. Box 104 Talcahuano Chile Fax: +56-412-74 40 01 +56-412-74 41 23 Tel.: +56-412-74 43 38 [email protected] Service/after office hours: Luis Terrazza +56-412-74 43 38 Tel: Reinaldo Roepke R. +56-412-93 44 13 Tel.: Nelson Tobar M. Tel.: +56-412-94 70 91

China Blohm + Voss Industries (Shanghai) Ltd. Xinzhuang Industry Park No. 318, Yuan Shan Rd. 201108 Shanghai China Fax: +86-21 64 42 20 66 Tel: +86-21 64 42 22 11 [email protected] www.bvi-marine.com.hk

Costa Rica see USA

Cyprus M.I.E. Services Ltd. The Hawk Building 124 Gladstonos Street 3032 Limassol Cyprus Fax: +357-25-34 66 26 Tel.: +357-25-89 99 00 [email protected] www.miegroup.com.cy Contact: Mr. Michael Ajini

Estonia Nordsafe Oü Käina mnt 23 92414 Kärdla Hiiumaa Estonia Fax +372-627 06 95 Mobile +372-56 93 50 10 [email protected] Contact: Andrei Shalov

France Union Naval Marseille SAS Terre-Plein de Mourepiane Porte 4, BP 57 13315 Marseille Cedex 15 France Fax : +33-4-91 69 69 61 Tel.: +33-4-91 03 52 00 [email protected] Sobrena Société Bretonne de Réparations Navale Port de Commerce B.P. 31 122 29211 Brest Cedex 1 France Fax: +33-2-98 44 47 22 Tel.: +33-2-98 43 43 43 [email protected] www.sobrena.com

Arno Dunkerque Route des Docks P.O. Box 2074 59376 Dunkerque Cedex France Fax: +33-3-28 66 59 28 Tel.: +33-3-28 66 48 00 [email protected] Service/after office hours: Mr. Serge Mahieu - Deputy Home +33-3-28 21 99 54 Mobile +33-6-07 63 70 06 Mr. José Popieul - Mech.Dept.Mgr. Mobile +33-6-85 42 35 71 Mr. Laurent Castel - Service Engineer Home +33-3-28 64 15 96 Mr. Johan Vermersch Service Engineer Home +33-3-28 60 38 29

Germany Blohm + Voss Industries GmbH Hermann-Blohm-Str. 5 20457 Hamburg Germany +49-40-319 61 89 Fax: +49-40-30 11-1987 +49-40-30 11-1953 +49-40-30 11-0 Tel.: Mobile: +49-172-437 47 78 [email protected] www.bv-industries.com

Greece M.I.E. Company Limited Kanari 1 GR-185 37 Piraeus Greece +30-210-453 92 34 Fax: +30-210-459 88 00 Tel.: [email protected] www.miegroup.com.cy Contact: Nicholas Kolliarakis

Hong Kong Hongkong United Dockyards Ltd. Tytl 108 RP, Sai Tso Wan Road Tsing Yi Island New Territories Hong Kong Fax: +852-24 33 01 80 +852-24 31 28 28 Tel.: [email protected]

Hong Kong (continued)

Netherlands Antilles

Spain

Service/after office hours: Tel.: +852-24 31 28 28, Mr. H.C. Wong/Thomas Yau Tel.: +852-93 65 06 63, Mr. Thomas Yau

Curaçao Drydock Co. Inc. Dokweg 1, Koningsplein P.O. Box 3012, Curaçao Netherlands Antilles Tlx.: 1107, 1207, 3443 Fax: +599-9-736 55 80 Tel.: +599-9-733 02 71/86/97 Mobile: +599-9-560 32 24 +599-9-669 38 57 +599-9-510 30 29 [email protected] www.cdmnv.com

Pasch y Cia S.A. Capitán Haya, 9 28020 Madrid Spain Fax: +34-91-555 13 41 Tel.: +34-91-598 37 60 [email protected] Service/after office hours: Mr. Godino Tel.: +34-650 90 61 54

Chester’s Technoservices PTE Ltd. 71 Toh Guan Road East #03-03, Tch Tech Centre Singapore 608598 Fax: +65-67 73 00 63 Tel.: +65-67 79 00 60 [email protected] Contact: Allan Goh (Director)

Iceland Hedinn HF Storasi 6 210 Gardabaer Iceland Fax: +354-569 21 01 Tel.: +354-569 21 00 [email protected]

India Indonesia see Singapore

Italy Jobson Italia Srl VAT IT 00961480118 via delle Pianazze 150A 19136 La Spezia (SP) Italia Fax: +39-018-791 12 82 Tel.: +39-018-798 42 01 [email protected] www.jobsonitalia.com

Japan Bollfilter Japan Ltd. Toroa Kobe Bldg. 7F 4-2-14, Hachiman-dori Chuo-ku, Kobe 651-0085 Japan Fax: +81-78-242 85 15 Tel.: +81-78-242 85 50 [email protected] www.bollfilter.jp

Korea Blohm + Voss (Korea) Ltd. Room 1830, Ocean Tower 760-3, U-dong Haeundae-gu 612-020 Pusan South Korea +82-51-740 57 04/5/6 Fax: +82-51-740 57 01/2/3 Tel.: [email protected] Sales/after office hours: Mr. Keil (Director) Tel.: +82-51-742 36 92 Service/after office hours: Mr. Seo (Service Manager) +82-11-99 12 57 07 Tel.:

Malaysia (excl. Navy) see Singapore

Malta Malta Shipyards Ltd. The Docks Cospicua CSP04 Malta Fax: +356-23 99 22 79 Tel.: +356-23 99 30 05 (Operator) +356-23 99 30 45 (Commercial Office) [email protected] www.maltashipyards.com

Mexico see USA

Middle East (excl. Egypt)

Netherlands Antilles The Caribbean Bramar Caribbean Brandt Marine & Technical Support (Caribbean), Inc. # 74 Brakkeput Abao Curaçao, N.W.I. Tel./Fax: +599-9-767 43 36 Mobile: +599-9-510 19 83 [email protected] www.bramarcaribbean.com

New Zealand Mitchell & Bailie Ltd. P.O. Box 40-219 Glenfield Auckland 1310 New Zealand Fax: +64-9-444 33 29 Tel.: +64-9-444 94 22 Mobile: +64-27-475 94 35 Contact: Anne Bailie [email protected] Alan Bailie [email protected]

Pakistan Philippines see Singapore

Portugal Lisnave - Estaleiros Navais, S.A. Mitrena Yard P.O. Box 135 2901-901 Setubal Fax: +351-265 71 92 75 Tel.: +351-265 79 91 00 [email protected]

Russia/West Ost-West Marine Service L.L.C. 10/2 Dvinskaya Street 4th floor 198035 St. Petersburg Russia Fax: +7-812-324 57 27 Tel.: +7-812-324 57 00 /21/13/08 [email protected] www.owms.ru

Singapore Simplex Marine Services Pte. Ltd. 13 Joo Koon Crescent 4th Storey Singapore 629021 Singapore Fax: +65-62 66 00 06 Tel.: +65-62 68 88 82 [email protected] Service/after office hours: Mary Lim (Logistics) Mobile: +65-98 20 78 78 Jeffree Wang (Servicing) Mobile: +65-96 27 44 19 Tan Hung Bak (Sales) Mobile: +65-96 23 59 79

South Africa Globe Engineering Works (Pty.) Ltd. Berrio Road Port of Cape Town Cape Town. R. S. A. Fax: +27-21-448 46 52 Tel.: +27-21-448 46 40 [email protected] www.globengineering.co.za

see Cyprus

Myanmar see Singapore

Netherlands B.V. Technisch Bureau Uittenbogaart Brugwachter 13-15 3034 KD Rotterdam The Netherlands +31-10-414 10 04 Fax: Tel.: +31-10-411 46 14 Mobile: +31-6 54 74 80 81 [email protected] www.tbu.nl Contact: H.F. Uittenbogaart Service/after office hours: Tel.: +31-70-511 02 03

Dormac Marine & Engineering 1 Belfast Road Bayhead Durban Republic of South Africa Fax: +27-31-205 89 41 +27-31-205 88 12 +27-31-205 50 27 Tel.: +27-31-274 15 00 [email protected] www.dormac.net Hesper Engineering (Pty.) Ltd. A division of Novatech (Pty.) Ltd. Verbena Street 7420 Paarden Eiland, Cape Town Republic of South Africa +27-21-510 43 00 Fax: Tel.: +27-21-510 43 01 [email protected] www.hesper.co.za

Pasch y Cía S.A. Campo Volantin, 24-3° 48007 Bilbao Spain Fax: +34-94-413 26 62 Tel.: +34-94-413 26 60 [email protected] Service/after office hours: Mr. Juan Maria Llosa Mobile: +34-649 948 217

Sri Lanka see Singapore

Sweden Simplex Turbulo System AB P.O. Box 4050 433 04 Jonsered Sweden Fax: +46-31-795 60 94 Tel.: +46-31-795 60 95 +46-31-795 60 93 Mobile: +46-707 78 10 31 [email protected] [email protected] www.simplexts.se

Taiwan see Hong Kong (Chester’s Technoservices)

Thailand see Singapore

United Arab Emirates Dubai Drydocks P.O. Box 8988 Dubai United Arab Emirates Fax: +971-43 45 01 16 +971-43 45 13 57 Tel.: +971-43 45 13 53 +971-43 45 06 26 [email protected] www.drydocks.gov.ae

United Kingdom Simplex-Turbulo Co. Ltd. Wherwell Priory Wherwell Nr. Andover Hampshire SP11 7JH United Kingdom Fax: +44-1264-86 01 80 Tel.: +44-1264-86 01 86 [email protected] www.simplexturbulo.com After office hours: Tel.: +44-1264-86 01 77

USA Simplex Americas LLC 20 Bartles Corner Road Flemington, New Jersey 08822 USA Fax: +1-908-237 95 03 Tel.: +1-908-237 90 99 24/7/365 Mobile: +1-908-581 09 00 [email protected] www.simplexamericas.com

Vietnam see Singapore

Worldwide limited to Underwater Service SubSea Solutions Alliance Miami Diver Inc. 2994 North Miami Avenue Miami, Florida 33127 USA Tel.: +1-305-571-97 00 24 hour Tel.: +1-305-571-97 00 [email protected] Global Business Development and Sales Rick Shilling +1-914-826-00 45 Tel.:

12. Issue 8.2008

Blohm + Voss Industries GmbH P.O. Box 11 22 89, 20422 Hamburg, Germany Phone: + 49 40 30 11 - 0 Fax: + 49 40 31 96 - 19 50 E-Mail: [email protected] Internet: www.bv-industries.com