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G N 1 ~ rpJ!~~1ºJim~D/l~" r*J;&" #~ ~ r,!l6\:t pTj;~ ~ ffl ti ~ ,:tE~ 1ttJm 1tJ " ~~ ~ "tt g:¡:" # ~,q Jlt ~ ~ !1m B'Í , 1lJ fF § ~ lO §)il fflo

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Foreword -,f¡li1l~~§it medium speed three-thread overlock sewing machines are usually special machines for Knitting milis and garment factories. used to perform overlocking in sewing various knitted goods such as sweaters.cotton

1

=,=t~tt*.lt·············································· .:::,*m~.-)j.:{!m1trt(.Jjí•• ll··· 1.

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2. ~:i:

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3. iM~~i;\4-······

4

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jerseies.sweatshirts and woolen goods. etc. It is precise in construction,reliable in quality and nimble in operation,Two thread overlcck stitch forms with a needle and two loopers.

1.1tJJJ #:i!.

6-19

:

6

2. i!.tt;fJt¡~t;fptJt~·················· 3. &.1t;fJtAf .. ·

7 9 -10

4. i,I!J-:p·$t:it*J.t

Before being dispatched by the factory,each machine

1-2 3- 4 3

5 . 1,!l-:p 4t :it 1:1l.

11

.. ... .

.. . .. . ....

..

11 - 12

has been subjected to careful examination so as to ensure

6.;f.rt..4t~~;;t~

12

that it meets the required specifications and is in perfect

7./J,'ltit~~;;t~

14

8::k. ~4t~~;;t~

16

working or-dír . For its proper use and adequate maintenance,it ís recomended

that

the

operator

should

read

these

9. tJt!JJ{f.J 7f"M;;fp~-*10.1,!l-:PtJt~t.}:t.é9;;t~·

,ñ, tl#l~~tJ ..··

·

··..·..· ·· ·

instructíons carefully and follow the suggested usage and

1. t:i.'t·li!j.v;fp~1t}

method of operatíon.you are assured of ít being brought in

2. ~~mltLJ])f

a wonderful new world of sewing.

17- 18

3. Pf ~l!.jIJé!J;itff;fp~J.f;;t~

18 -19 20 - 24 20 20 - 21

24

t\,*i*IE~.i*~~~~mmUil··························· 28 - 31 -1:::;, 1Ift#~i'k#'"

40

-,!tif.ti~~s\

CONTENTS

Stitch Fonn

Stitch Form Specifications

, '"

'"

Preparations forUsinq

2

the Machine

5- 6

1. Cleaning grease and dirt . .. ... ... ... . . . . .. 2 . Inspecting

,

3. Lubrication

... .. . ... . ..

... . . . .. . .. . .. .

.. . 5 - 6 ... 6

6

and trial runs

Use and Adjustment 1.0peration

1

8 - 20

speed

8

2. Selecting the needle and thread

8- 9

3. Setting the needle

12 - 13

4. Regulating

Stitch Length

13

5. Regulating

Stitch Width

6. Threading

the Needle

14

7. Threading

for die Small Looper

15

8. Threading

for the Big Looper

16 18

10. Adjusting

.

the Thread to a Suitable Tightness

...........................................................

1. Routine Maintenance

'" and Repair

: :..

19 -20 21 - 27 21

2. Changing the Blade

22 - 23

3. Common Problems and their Solutions

25 - 27

List of Parts Mode!' Accessories

::::iim !ittirtE Three thread overlock. stitch

13 - 14

9. Starting and Finishing Sewing

Maintenance and Repair

.=.timitltii2t Three thread overedge stitch

32 - 39 and spare Parts

40

-. A ¡tjlttJJ it&.: 300o-ft /mín .k#i!.-!éJt.: U;-3.2mm ~it. é.tt1:&.: 2.5 - 4.5rnm A k!Un)J. Jt.: ro tb;!k ~ T ifJ!t#;9 4mrn ~#~-t: GN x l~ Nrn60-Nrn90 tt~~: 40 - 80fJ - 4~*~A~~.;.tit~

s.

~,*';~~J.J{. -t: 250 ~'*;t't': 1?14kg

x

210

x

270rnrn ( E?.:if;~Úla )

-1-

lt

t!

-s}}

*

30004t/min

250W

800-15004t/min

I50W

Specifications Max.sewing speed: 3000 r. p. m . .Max.stitch length: 1.5 - 3.2mm Overlock stitch width: 2.5 - 4.5mm Max.thickness

66

65

12

64

11

62

of material to be sewn: 4mm

Needle: GN xl Nm60 Nm90 Thread: 42-801304 cotton thread and the like Overall dimension

of the head: 250

x

210

x

270rnm

(includíng oil resevoir)

*mfi~m-~~m., .~a~~~~n~I~:

Net weight of the head: Approx14kg

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1)~~AA~:~*~ ••• , ~~,~*~.~,~~ft~~*

Power of motor:

~e~~M~*~~~~M,~A~.~~A~.~~.

M~

Sewing spccd

Power

.~~m*~~a~at~~.~~~*~~ •.

3,000 rprn

250W

2).~: 1t~*~~ij/J~A:!Ib. p/f •.:J..(f.~ ~~tb it •. :J.$ ¡.¡ jí tF- ik.%] ~: ~-lt

~OOI,500 rpm

150W

_. *m+~ij/J~~, ~; iu •• BtFit ~ (r!) jI'~~ UJLgtY-¡~:R~JJll.t~r¡?I~]

-2-

~*~*~~.t, ~.~*~~~~~~~ -3-

) .

(

Preparations for Using the Machine

3)~mm~*:s«m~.~••~~~A$+S~~ ~~¡;fr

(~rol.ffi3.m-*Pfr-F)

~#~~#~~.

~g.

, *ftJ-tH'#;4~A,

1t~tb~A

m~~~~~*#*~~~.~.,

m~~~#~.~~B~.~#. ~~~~~.~a,#~~ 2500H /min-

t,~~'~ttt.

~H~~ 4'-~4t JL~-it. ~~ ~t\3tm.

-4-

1Ht ~ ~~ff},

li3Ht

i){.

Before usíng the machine for fue first time, the following steps should be taken after unpacking: a)Cleaning grease and dirtBefore packing the head, all the machine parts have been coated with grease to prevent rust, it ma,y become hardened in storage or transport, furthermore, dust may gather in the machíne, so it ís necessary to clesn the grease and dirt from the surface and -5-

.

oil holes of fue machine.

2.iiH~tJl~~Qm~i:

b.) lnspecting: The machine parts may become loose or

t~'M;f•.;l{/.]t~;f+at,

-&m GN x 112NrnfiO- Nm65{JLH.

damaged after being subjected to strong shock in transporto

tJ:.¡Wlt/.'j.flJtJ:#ut,

So after cleaning the grease and dirt, a careful inspection

~~~#ut, ~~S~~~_~.Lft~fIJ~*, ~~. *JL4t~ lt, i~,G:fltt'l-;fJL#lr1~ .ft.Jj.~#=r..t~U1HI1l.

should be made, meanwhile tuming balance wheel to make

/f](;N

x

11'.!Nm75- Nm90{JLH.

~*~

sure that there are no trouble such as knockíng, une ven friction of rotatíng, etc, if found proper adjustment should rnakc.(machine installation see fig. of assembly) t~#-t

c.) Lubrication and trial runs: Add the clean spindle oíl to all places where need oiling (as is índícated wíth arrows in Figs.1-3).

r.lU\f~A~

f.j:

{JL#}.N,;ft

100-1201. it 1'3;(¡l

80-120/2;f* ~~

60-65

801. it::t3;(¡l

80/2;f*~~

65

6 o 1. 7t::t3;(¡l

60/3;f~H\

75

runs smoothly, coruinue fue idIe run al a higher speed of 2500 rprn for several minutes: After that, recheck all the part s,

421.7t;f3;(¡'"

60/3;f*~~

75

**

-t,

;fJ

Once you are satisfied that the machine is running properly, you may begin regular operation.

60/3**~~

75

±

;fJ

60/3;f*~~

90

80/2**~li.

60-G5

r¡¡'121ttt ,~.A~;(¡l

60/3**~\

65

tf *tt~.&.;f~A\'

42/3**~~

75-80

9J.¡)pj¡

42/3**~li.

75-90

-t,;:J¡.;jt "k

42/3{*~li.

75-HO

42/3;f~~~

90-100

Turn the balance wheel so as to allow the oil to makc its way into the running part. Then wipe out the remaining oíl out -side and then make idle run al a Iow speed.

Ir the

machíne

.:E.

;l~~!ft

l.~/lH~~:

~1~*~B~*m••.•~B~~*~m~~#_s ~A!ii2500'H/min, ~A1~*JL ~Jt~3@.*". ~.fi:t-1'- 1)A.:6~1t m,G, -"r1ttt'l- .Lft·a.~ .¡j.~~jIJ30004t/min. ~a~tts. foJ~r

*U· ( J\!.1iJ 1>

•

+ .ft- • -1Uf off.. tf

-6-

.&.~

~ ~ -t, :k. ;f'.. o/r. . 'PR.;(¡l -7-·

Use and Adjustment

Thread

Needle

42 Count knitting Cor undershirt

60 eount 3 strand eotton thread

75

Cotton jersey

60 count 3 strand eotton thread

75

be run at a speed of not more than 2500 rpm so as to break it in sufficiently. After use for a month, the speed may be

Sweater

60 eount 3 strand eotton thread

90

increased to appaox. 3000 rpm according to the material being sewn. The machine balance wheel should be turned

Thin silk and satin Thin chemlcal libre eotton cloth

8012

60-65

60/3

65

Medium-Iong fibre and eotton cloth

42/3

75-80

Khaki drills and denim

42/3

75-90

Chemical libre and thin pure woolen faney suiting

4213

75-90

Chemineal libre and pure woolen cloth Ior overeoat, eanvass,ete.

42/3

90-100

Material

1.0peration speed: To ensure longer service life. at first the machine should

toward the outside (see Fig 1). 2.Selecting the needle and thread: The needles of type GN-1 Nm 60-65 are usually used reir sewing soft and thin materials, while needles of GN-l Nm 7590 are used for sewing tough and thick materíals, Selecte a needle suitable the thread required by the workpiece or selecte a thread suitable for the needle required by the workpiece. The following table is suggested for your guidance,

3.~iUJlfl":

showing the suitable threads and needles usually used with different materials. Material

Thread

Needle

120 Count knitting Ior undershirt

80-120 count 2 strand cotton thread

60-65

80 Count knitting for undershirt

80 count 2 strand cotton thread

65

60 COImtknitting Ior undershirt

60 count 3 strand cotton thread

75

-8-

~*-

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