• Author / Uploaded
• Cristian Luque

Citation preview

9

8

7

RELAY PANEL HORN RELAY 149-5050

320-OR-18 114-RD-18

K909-BU-18 K909-BU-18 A770-PK-18

114-RD-18 BACKUP RESISTOR 102-8016

307-OR-18

791-PK-18 115-PK-18 115-PK-14

150-RD-18

607-PK-18 615-YL

A588-GN-18 A587-YL-18

C (NOTE P) AB(NOTE R) 306-GN-18 KEY SW.(START) CHECK TERM. 200-BK-18 GND 200-BK-18 REGULATOR A718-PU-18 TEMP. 310-PU-18 RELAY L975-PK-18 INDICATOR 308-YL-18 KEY SW.(ON)

HYD LOCK SOL RELAY 149-5050

200-BK-18 151-GN-18

116-BR-14

TIMER RELAY 111-4870

111-RD-14 177-RD-14

OUT 1 +B

200-BK-18 189-RD K909-BU-18 308-YL-18

177-RD-14 235-BK L909-BU L908-OR A770-PK-18 K909-BU-18 189-RD 114-RD-18 320-OR-18 149-PU 786-GN-18 154-RD-18 615-YL 791-PK-18 115-PK-14 200-BK 307-OR-18 308-YL-18 111-RD-14 151-GN-18 150-RD-18 A588-GN-18 A587-YL-18 L975-PK-18 177-RD-14 177-RD-14 116-BR-14 607-PK-18 322-GY-18 616-BU A718-PU-18 J703-PK-18 403-GN-18 309-GY-18 308-YL-18

877-YL-4

GG HH HEATER RELAY 9X-8124

304-WH-8 G974-WH-18 G975-YL-18

1 2 3 4 5 6 7 8 9 10 11 12

RELAY PANEL

A

A

A CONN 2

L23

CONN 3

109-RD-6 101-RD-6 101-RD-4

877-YL-4

304-WH-8

YY XX HH

GG

WW

ZZ(NOTE P) AC(NOTE R) 112-PU-6

C (NOTE P) AB(NOTE R) 307-OR-18 308-YL-18 111-RD-14 235-BK

GROUND STRAP 134-3344

DISCONNECT SW 7N-0718

G

101-RD-4

W

1 2 3 4 5 6 7 8 9 10 11 12

DD

L975-PK-18 177-RD-14

CC

BK-00

304-WH-8 WW START RELAY 125-1302

YY109-RD-6 60A ALT BREAKER 9S-0174 C (NOTE P) AB(NOTE R) K909-BU-18 200-BK

XX VV

330-YL-18 306-GN-18

2 1

SS(NOTE P) AE(NOTE R)

GND L P

310-PU-18 200-BK-18

ATCH DEMOLITION RELAY 149-5050(NOTE K) 200-BK-18

1 2 3 4 5 6 7 8 9 10 11 12

101-RD-6 101-RD-6

C (NOTE P) AB(NOTE R) 177-RD-14 177-RD-14 A770-PK-18 189-RD 114-RD-18 320-OR-18 149-PU 786-GN-18 154-RD-18 615-YL 791-PK-18 115-PK-14

101-RD-6

MAIN BREAKER C (NOTE P) 9S-0174 AB(NOTE R) 177-RD-14 VV 177-RD-6 60A UU(NOTE P) AD(NOTE R)

177-RD-8

BK YL WH/YL

A

BLOCK 121-1023 B

CONN 4

C (NOTE P) AB(NOTE R) 1 607-PK-18 2 322-GY-18 3 616-BU 4 309-GY-18 5 6 308-YL-18 7 8 A718-PU-18 9 J703-PK-18 10 403-GN-18 11 12 G975-YL-18 1 L27 2 G974-WH-18

308-YL-18 K909-BU-18 200-BK-18 200-BK-18 189-RD 111-RD-14 177-RD-14 177-RD-14 116-BR-14 308-YL-18 310-PU-18 J703-PK-18 403-GN-18 309-GY-18 200-BK-18 200-BK-18

W

235-BK L909-BU L908-OR

116-BR-14 151-GN-18 150-RD-18 A588-GN-18 A587-YL-18 L908-OR L909-BU

SERVICE CONNECTOR A B C CONN 1 D E

177-RD-14 177-RD-14 177-RD-14 177-RD-14

START CONT RELAY 094-2080

WH/BU S WH/GN R

309-GY-18 309-GY-18 200-BK-18 J703-PK-18 403-GN-18 310-PU-18 200-BK-18

UU(NOTE P) AD(NOTE R)

200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK RELAY PANEL

112-PU-18 AB (NOTE R)

GND OUT 2 IN 2 IN 1

330-YL-18

ATCH MAIN RELAY 159-9108 (NOTE R) DIODE 121-1022 308-YL-18 200-BK-18

200-BK-18 308-YL-18 308-YL-18 SS(NOTE P) 308-YL-18 AE(NOTE R) 177-RD-8 309-GY-18 177-RD-6 112-PU-6 177-RD-14 ZZ(NOTE P) MAIN RELAY 177-RD-14 AC(NOTE R) 3T-0376 177-RD-14 (NOTE P) 177-RD-14 112-PU-6

A770-PK-18 115-PK-14 615-YL 607-PK-18 791-PK-18 114-RD-18 322-GY-18 320-OR-18 786-GN-18 149-PU 616-BU 151-GN-18 150-RD-18 A588-GN-18 A587-YL-18 A718-PU-18 L975-PK-18 189-RD 111-RD-14 154-RD-18 307-OR-18 308-YL-18 J703-PK-18 403-GN-18 309-GY-18 K909-BU-18 116-BR-14

A770-PK-18 K909-BU-18 K909-BU-18 114-RD-18 322-GY-18 320-OR-18 115-PK-14 615-YL 607-PK-18 791-PK-18 786-GN-18 149-PU 616-BU 200-BK-18 151-GN-18 150-RD-18 A588-GN-18 A587-YL-18 200-BK-18 200-BK-18 200-BK-18 A718-PU-18 L975-PK-18 154-RD-18 307-OR-18 310-PU-18

H

200-BK-18

4 3 1 2

C (NOTE P) AB(NOTE R)

308-YL-18

ATCH MAIN RELAY RESISTOR 163-6616 (NOTE R)

FAN RELAY 149-5050

177-RD-14

HEATER CONT UNIT 104-3204

616-BU CAB/CHASSIS LAMP RELAY 149-5050

200-BK-18 308-YL-18 308-YL-18

NEUTRAL START RELAY 149-5050

200-BK-18 154-RD-18

149-PU

322-GY-18

J

306-GN-18

BOOM LAMP RELAY 149-5050

786-GN-18 149-PU-18

CONN 11

200-BK 200-BK-18 200-BK

C

DD

RD-00

NEG POS

F

ATCH LOWER WASHER 7T-8890 MOTOR

BB

AA

L27 L26 L32

147-PU-18 A A

RD-00

NEG POS

147-PU-18

BB

L23

L22

CHASSIS

CC

AIR CLEANER SW 109-9330

BATTERY 3T-5760 9X-3404(NOTE B) A

L23 200-BK-18 578-BU-18

WASHER 7T-8890 MOTOR

COOLANT LEVEL SW 096-0744

A

A

412-BU-18 200-BK-18

ATCH REFRIGERANT LOW PRESS. SW 105-9344(NOTE A,NOTE F) A OR 513-OR-18 2 PK 519-PK-18 1

E 513-OR-18

MM(NOTE E) 2 1

430-BU-18 200-BK-18 177-RD-14 116-BR-14 189-RD K909-BU-18 A587-YL-18 A588-GN-18 A770-PK-18 791-PK-18 786-GN-18 308-YL-18 307-OR-18 320-OR-18 154-RD-18 151-GN-18 114-RD-18 115-PK-14 149-PU 112-PU-6 177-RD-14 177-RD-14 111-RD-14 615-YL 615-YL-18 615-YL-18 615-YL 150-RD-18 L975-PK-18 L908-OR-18 L909-BU-18 235-BK-18

506-PU-18 200-BK-18

200-BK-18 578-BU-18 506-PU-18 200-BK-18 412-BU-18 200-BK-18 513-OR-18 519-PK-18 140-BU 200-BK 200-BK-18 321-BR-18

Z

B L21

L22

BK-00

W

L22

200-BK-18 200-BK 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK 140-BU 578-BU-18 506-PU-18 519-PK-18 412-BU-18 321-BR-18 513-OR-18 K997-BU-18 763-BU-18 L977-YL-18 L978-GY-18 L974-GN-18

177-RD-14 147-PU-18 116-BR-14 A588-GN-18 519-PK-18 111-RD-14 177-RD-14 177-RD-14 140-BU 149-PU 115-PK-14 168-RD-14 114-RD-18 150-RD-18 151-GN-18 154-RD-18 320-OR-18 189-RD 172-RD-18 112-PU-6 615-YL-18 615-YL-18 K909-BU-18 308-YL-18 307-OR-18 578-BU-18 K906-GN-18 A768-BU-18 A769-GY-18 A770-PK-18 F774-WH-18 F773-OR-18 786-GN-18 791-PK-18 492-GY-18 491-PK-18 495-GN-18 430-BU-18 496-WH-18 K904-GN-18 A761-PU-18 487-OR-18

L17

L16

L16

L16

L12

147-PU-18 576-PK-18 575-YL-18 191-WH-18 113-OR-18 105-RD-14 185-YL-18 152-BU K909-BU-18 308-YL-18 307-OR-18 578-BU-18 K906-GN-18 A768-BU-18 A769-GY-18 A770-PK-18 F774-WH-18 F773-OR-18 786-GN-18 791-PK-18 615-YL-18 530-OR-18 590-GY-18 501-GN-18 A586-OR-18 A590-BU-18 A589-OR-18

A

A

1 2 3 4 5 6 7 8 9 10 11 12

1 2 3 4 5 6

G

G

308-YL-18 576-PK-18 307-OR-18 578-BU-18 K909-BU-18 K906-GN-18 A768-BU-18 A769-GY-18 A770-PK-18 F774-WH-18 F773-OR-18 575-YL-18

191-WH-18 615-YL-18 113-OR-18 200-BK-18 501-GN-18 105-RD-14 185-YL-18 152-BU 590-GY-18 786-GN-18 791-PK-18 A586-OR-18

A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 L972-BU-18

200-BK-18 615-YL-18 A589-OR-18 A590-BU-18 191-WH-18 578-BU-18 152-BU 575-YL-18 576-PK-18 308-YL-18 308-YL-18 590-GY-18 501-GN-18 A586-OR-18 786-GN-18 791-PK-18 113-OR-18 307-OR-18 105-RD-14 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 147-PU-18 530-OR-18 200-BK-18 185-YL-18 K906-GN-18

L30 L19

200-BK-14 200-BK-14 200-BK-18 200-BK 200-BK-18

L972-BU-18 200-BK-18

200-BK-18 A537-PK-18

G

L32

L17

ATCH SEAT WITH SEAT HEATER 111-6458

KK (NOTE N) 112-PU-6

A CONN 30

L17

A

A

L18

L26 L32 L19

113-OR-18 103-RD-18 615-YL-18 508-PU-18

113-OR-18 113-OR-18 124-GN-14 129-BU-18 118-GY 152-BU 115-PK-14 191-WH-14

H H

CONN 31

1 2 3 4

124-GN-14 147-PU-18 113-OR-18 147-PU-18 191-WH-14 152-BU 118-GY 129-BU-18 149-PU 115-PK-14 120-YL 113-OR-18

L25

152-BU-18 A588-GN-18 954-GN-18 L970-GY-18 576-PK-18 575-YL-18

L6

L5 SPEAKER (-)

RADIO SWITCH PANEL A/C /HEATER CIGAR LIGHTER WASHER/WIPER LOWER WASHER/WIPER CAB/CHASSIS LAMP PWR WINDOW

509-WH-18

112-PU-14 112-PU-14 116-BR-14 SPEAKER (-) SPEAKER (+)

FUSE BASE 111-4812

512-GN-18 511-BR-18

112-PU-14 177-RD-14 177-RD-14

113-OR-18

168-RD-14 105-RD-14 103-RD-18 114-RD-18 175-RD-14 140-BU 112-PU-14 K905-RD-14

H

2 3 4 5 6 7 8 9 11 12 1 10

H 1 2 3 4 5 6 7 8

H

177-RD-14 200-BK-18 177-RD-14 320-OR-18

189-RD-14 154-RD-18 111-RD-14 151-GN-18 112-PU-14 172-RD-18 112-PU-14

10A

103-RD-18 152-BU-18

175-RD-14 124-GN-14 615-YL-18 200-BK-14 519-PK-18 200-BK-14 1 2 3 4 5 6 7 8 9 10 11 12

120-YL 177-RD-14 175-RD-14 111-RD-14 189-RD-14 112-PU-14 112-PU-14 185-YL-18 150-RD-18 172-RD-18 K905-RD-14 112-PU-14 177-RD-14 177-RD-14 114-RD-18 103-RD-18 105-RD-14 168-RD-14 147-PU-18 147-PU-18 149-PU 140-BU 112-PU-14 112-PU-14 116-BR-14 113-OR-18 113-OR-18 129-BU-18 124-GN-14 118-GY 152-BU 115-PK-14 191-WH-14

5

15-YL-18 52-BU-18 75-YL-18 76-PK-18 00-BK-18 00-BK-18

A537-PK-18 CONN 29

H 10A 15A 10A 10A 10A 15A 15A

200-BK-18 590-GY-18 501-GN-18 A586-OR-18 786-GN-18 791-PK-18 113-OR-18 308-YL-18 308-YL-18 307-OR-18 105-RD-14 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 530-OR-18

L972-BU-18 200-BK-18 200-BK-18 A

191-WH-18 113-OR-18 147-PU-18 105-RD-14 185-YL-18 152-BU 576-PK-18 575-YL-18 L970-GY-18 954-GN-18

PLATFORM CONN 28

615-YL-18 A537-PK-18 147-PU-18 A589-OR-18 A590-BU-18 191-WH-18 578-BU-18 152-BU 575-YL-18 576-PK-18 200-BK-18 200-BK-18 200-BK-18

CONN 12 A

152-BU 177-RD-14 200-BK-18 113-OR-18 185-YL-18 105-RD-14 129-BU-18 118-GY K905-RD-14 111-RD-14 177-RD-14 177-RD-14 116-BR-14 140-BU 149-PU 147-PU-18 147-PU-18 115-PK-14 168-RD-14 114-RD-18 150-RD-18 151-GN-18 154-RD-18 320-OR-18 189-RD 172-RD-18 112-PU-14 112-PU-14 112-PU-14 112-PU-14 112-PU-14 200-BK 200-BK-18 615-YL-18 103-RD-18 509-WH-18 508-PU-18 511-BR-18 512-GN-18

X

118-GY 103-RD-18 103-RD-18 191-WH-18 191-WH-14 152-BU 113-OR-18 185-YL-18 105-RD-14 129-BU-18 K905-RD-14 509-WH-18 508-PU-18 511-BR-18 512-GN-18 147-PU-18

W H HORN DOME LAMP KEY SW REFUELING PUMP CRUSH SOL SEAT HEATER BOOM LAMP LUBRICATOR

15-YL-18 15-YL-18 78-BU-18 52-BU 52-BU-18 00-BK-18 00-BK-18

L17

1 2 3 4 5 6 7 8 9 10 11 12 ATCH 12V 5A CONVERTER 119-1733 154-RD-18 151-GN-18 320-OR-18 200-BK-18 150-RD-18

FUSE 10A 9W-1442 15A 9W-1441 20A 9W-1446

10A 10A 10A

114-RD-18 103-RD-18 105-RD-14 168-RD-14 147-PU-18 147-PU-18 149-PU 140-BU

15-YL-18 15-YL-18 589-OR-18 590-BU-18 91-WH-18 00-BK-18 00-BK-18

147-PU-18 K785-GN-18 780-PU-18 ATCH 12V 5A SOCKET 121-0987

H

191-WH-14

ATCH A/C UNIT 154-0523(NOTE F) 130-0250(NOTE E) CONN 27

15A 10A 10A 15A 15A

112-PU-14 150-RD-18 177-RD-14 185-YL-18 112-PU-14 116-BR-14

HEATER SWITCH PANEL 119-6826(NOTE F) 139-7261(NOTE E)

12V OUT GND GND 24V IN 24V MEMORY 12V MEMORY

ATCH A/C SWITCH PANEL 119-6828(NOTE F) 139-7207(NOTE E) 5 6 3 2 1 4

D

1 2 3 4 5 6

X 135-BU 200-BK 200-BK 120-YL 120-YL

HEATER UNIT 151-9680(NOTE F) 139-7258(NOTE E)

FAN AUX CKT AUX CKT BACKUP CONVERTER HYD LOCK SW HYD LOCK SOL ENG GOV E/P CONT

47-PU-18 00-BK-18

PLATFORM

H

2 1

8 8 10A 10A 15A

200-BK 120-YL

RT CONT LAY -2080 H 175-RD-14 180-GN 176-YL 185-YL-18 120-YL 150-RD-18 150-RD-18 172-RD-18 K905-RD-14

103-RD-18

BR R G R/L B B

D T2 2 1 20A 10A 10A 10A 10A

15-YL-18 15-YL-18 537-PK-18

L33 175-RD-14 124-GN-14

5 1 4 3 2 6

Y/G Y/W

T1

103-RD-18 103-RD-18 103-RD-18 191-WH-18 191-WH-14 152-BU-18 152-BU

G

508-PU-18 509-WH-18 511-BR-18 512-GN-18 191-WH-14 103-RD-18 118-GY 103-RD-18 129-BU-18 K905-RD-14

147-PU-18 K785-GN-18 780-PU-18 615-YL-18 124-GN-14 519-PK-18 175-RD-14 200-BK-14 200-BK-14

C538-OR-18 C537-GN-18

ER RELAY -4870 111-RD-14 189-RD-14 112-PU-14 112-PU-14 177-RD-14

K785-GN-18

L29 FF

200-BK-14 200-BK-14 200-BK-18 200-BK 200-BK-18 177-RD-14 116-BR-14 519-PK-18 111-RD-14 177-RD-14 177-RD-14 140-BU 149-PU 115-PK-14 147-PU-18 168-RD-14 114-RD-18 150-RD-18 151-GN-18 154-RD-18 320-OR-18 189-RD 172-RD-18 112-PU-6 615-YL-18 615-YL-18

L15

LAY 0

147-PU-18 147-PU-18 780-PU-18

CHASSIS

CONN 13

FF

CONN 14

1 Z

CONN 15

L15

A718 PU 18 9 J703-PK-18 10 403-GN-18 11 12 G975-YL-18 1 L27 2 G974-WH-18

6 OPERATOR STATION

4 L25

ATCH AM/FM RAD 153-2444

L8

A CONN 32

120-YL 200-BK L8

GROUND STRAP 7G-1060

L7

147-PU-18 L2

L13

L

2 1

590-GYA586-OR 501-GN530-OR-

786-GN791-PK113-OR200-BK-

308-YL308-YL-

307-OR105-RD-

A755-PK A756-BU A757-GY A758-BR

3

2

1

CONN 34

780-PU-18 K785-GN-18 200-BK-18 200-BK-18 G973-OR-18 G975-YL-18

L30 L26

954-GN-18 L970-GY-18 A588-GN-18 576-PK-18 152-BU-18 575-YL-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18

L7

4 5 6 3 1 2 7 8

24V IGN GND MEM 12V

A513-RD-18 592-BU-18 200-BK-18 509-WH-18 508-PU-18 512-GN-18 511-BR-18 ANTENNA 508-PU-18 511-BR-18 509-WH-18 512-GN-18

V

J

JJ (NOTE N) (NOTE S) 780-PU-18 1 2 200-BK-18 JJ (NOTE N) (NOTE S) K785-GN-18 1 2 200-BK-18

L25

576-PK-18 152-BU-18 575-YL-18 200-BK-18

A

A

200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK-18

L970-GY-18 200-BK-18

A

ATCH CRUSH PRESS. SW 1 106-0181(NOTE K)

615-YL-18 200-BK-18

HYD LOCK SOL 121-1491

1 2

3 1 4 2

S

+

615-YL-18 200-BK-18

ATCH LOWER WIPER MOTOR 113-3452 +1

D

ATCH HAMMER PRESS. SW 106-0181

1 2

ATCH AUX HYD PRESS. SW 106-0181

G973-OR-18 G975-YL-18

L26

Y

1 2

ATCH CRUSH PRESS. SW 2 106-0181(NOTE K)

E

L

E

L

615-YL 200-BK

615-YL 200-BK

L

L

ATCH CAB LAMP 5I-8250 140-0853

ATCH CAB LAMP 153-2521

D

ATCH WINDOW LIMIT SW 117-6306 (NOTE C)

1 2

PLATFORM L7

H

ATCH QUICK COUPLER SOL 2 121-1491(NOTE N) (NOTE S)

-

A

NEUTRAL START LIMIT SW 111-4799 HORN SW 6I-5088

320-OR-18 200-BK-18 H

MOTOR

954-GN-18 200-BK-18

A B C

CONN 34 ATCH QUICK COUPLER SOL 1 121-1490(NOTE N) (NOTE S)

Y (NOTE K) G973-OR-18 1 G975-YL-18 2

A588-GN-18 200-BK-18

H

154-RD-18 151-GN-18 150-RD-18

1 2 5 3 4 6 7 8

V

T

113-OR-18 103-RD-18 200-BK-18

CONN 35 1 103-RD-18 2 113-OR-18 3 200-BK-18 A513-RD-18 4 5 592-BU-18 6

ATCH RADIO FOR OUTSIDE JAPAN

509-WH-18 508-PU-18 200-BK-18 103-RD-18 113-OR-18 615-YL-18 P

1 2 3 4 5 6 7 8 CONN 34

V

T

615-YL-18

113-OR-18

TO RADIO

D

G

D

WINDOW LIMIT SW 124-3974 (NOTE D)

200-BK-18 A584-BU-18 200-BK-18 A584-BU-18 615-YL 200-BK-18 200-BK-18

SPEAKER (-) SPEAKER (+) GND BUCK UP ACC (+) ILLUMI (+)

SPEAKER (-) SPEAKER (+) 512-GN-18 511-BR-18

113-OR-18 103-RD-18 615-YL-18 508-PU-18 200-BK-18 511-BR-18 509-WH-18 512-GN-18

ANTENNA

ATCH RADIO FOR JAPAN

P A

L8

ATCH CONVERTER 134-1346

P

1 2 3 4 5 6 7 8

113-OR-18 103-RD-18 615-YL-18 508-PU-18 200-BK-18 511-BR-18 509-WH-18 512-GN-18

509-WH-18 508-PU-18 200-BK-18 103-RD-18 113-OR-18 615-YL-18

P 512-GN-18 511-BR-18

ATCH AM/FM RADIO 153-2445

ATCH AM RADIO 116-0218

SPEAKER (-) SPEAKER (+) GND BUCK UP ACC (+) ILLUMI (+)

SPEAKER (-) SPEAKER (+)

ATCH AM/FM RADIO 153-2444

ATCH RADIO CONVERTER FOR OUTSIDE JAPAN

OPERATOR STATION

A584-BU-18 200-BK-18 200-BK-18 A584-BU-18 615-YL 200-BK-18 200-BK-18

L30

L3 D

590-GY-18 A586-OR-18 501-GN-18 530-OR-18

L5

L972-BU-18 200-BK-18

G

W INT(3) W INT(6) W LOW WASH

786-GN-18 791-PK-18 113-OR-18 200-BK-18

L BOOM L CHASSIS +B GND

R C S B

307-OR-18 105-RD-14 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18

OFF ON ST

2 3 4 5

PK BU GN BR

S1 S2 S3 S4

SERVICE D METER 6T-7337

K911-PK-18 K997-BU-18 103-RD-18 K912-GN-18 615-YL-18 403-GN-18 129-BU-18 A584-BU-18 530-OR-18 590-GY-18 A583-YL-18 501-GN-18 506-PU-18 118-GY A586-OR-18 200-BK-14 C537-GN-18 C538-OR-18

THROTTLE POS SW 106-0107

G G

L4 KEY SW 9G-7641

G

308-YL-18 308-YL-18

RS485+ MAIN +B RS485LIGHT GND

403-GN-18 200-BK-18

SWITCH PANEL 153-2500

129-BU-18 200-BK-18

D

A584-BU-18 A583-YL-18 501-GN-18 506-PU-18 118-GY 590-GY-18 A586-OR-18 530-OR-18

Y/W Y/G A/C PHOTO

D

-

+

F MONITOR 106-0172

D

CIGAR LIGHTER 9W-0335 3 11 8 5 6 9 4 7 10 12 13 2 1

D

-BK-14 -BK-18 -BK-18 -BK-18 -BK-18 -BK 2-PU 1-GN 0-BR 9-OR

L6

K911-PK-18 K997-BU-18 103-RD-18 K912-GN-18 615-YL-18 201-BK-18

ONE TOUCH LOW IDLE AND PRESS. RAISE SW 6I-5088

G

WIPER CUT RISE.S LOW WA+ ACC INT (3) INT (6) WASH GND STOP REV W.CW W.CCW

WIPER CONT 155-7042

E

MM(NOTE E) 2 1

ATCH AUTO LUBRICATION PUMP 127-5264 A 140-BU 1 GROUND 200-BK 2 ON(KEY)

B

B

L B ALT P R E

B

B

WH BK

2 1

B

ENG OIL SW 5I-8005

S

L21

L14 L10

L31

ATCH BOOM RAISE PRESS. SW 106-0181(NOTE K) 1 2

L971-GN-18 200-BK-18

496-WH-18 200-BK-18

B

B

B

BOOM RAISE PRESS. SW 106-0180

1 2

1 2

IMPLEMENT PRESS. SW 106-0179

1 2

TRAVEL PRESS. SW 106-0179

B

HYD OIL LEVEL SW 111-4760

1 2 200-BK-18

200-BK-18

B

168-RD-18 487-OR-18 200-BK-18

T B

B

491-PK-18 B

HYD OIL TEMP SENDER 4I-5394

HYD OIL FILTER INDICATOR 116-3660

+B SIGNAL GROUND

A C B

200-BK-18

G

ATCH CRUSH SOL 127-6845(NOTE K)

BAT MOT

MOTOR

Z(NOTE K) 147-PU-18 G974-WH-18

RD-00

1 2 GROUND STRAP 132-1805

A

200-BK-6 B B A C

2 6 5 4 3 1

B

200-BK-18 K997-BU-18 K904-GN-18

200-BK-6 200-BK-18 200-BK-18

EE

200-BK-18 200-BK-18 200-BK-18 200-BK-18

ENG

BK-18 YL-18 BR-18

Z

200-BK-18 200-BK-18

EE

PUMP DISCHARGE PRESS. SENSOR GROUND 106-0178 +B SIGNAL

J703-PK-18 109-RD-6 101-RD-4 877-YL-4 403-GN-18 607-PK-18 322-GY-18 616-BU 309-GY-18 A718-PU-18 308-YL-18 304-WH-8

A768-BU-18 487-OR-18

CONN 10

A771-PU-18 200-BK-18

K997-BU-18 K904-GN-18 308-YL-18 F774-WH-18 F773-OR-18 A761-PU-18 172-RD-18 L977-YL-18 763-BU-18 L978-GY-18 A769-GY-18 A768-BU-18 B

AA

200-BK-6 A718-PU-18 492-GY-18 109-RD-6 403-GN-18 J703-PK-18 309-GY-18 513-OR-18 C468-BU-18 405-GY-18 304-WH-8 101-RD-4

CONN 9

L974-GN-18 200-BK-18

ENG SPEED PICKUP 125-2966

2 1

1 2

B

9

B

L20

CONN 8

STARTER 125-2988

ENG GOV ACTUATOR 120-0002

6 5 4 3 2 1

1 2 3 4 5 6 7 8 9 10 11 12

B

B

ENG OIL LEVEL SW 111-4760

405-GY-18

GND KEY DECEL ACCEL F/B +B

168-RD-14 L971-GN-18 172-RD-18

K997-BU-18 763-BU-18 L977-YL-18 L978-GY-18 L974-GN-18 A771-PU-18 K906-GN-18

K904-GN-18 A761-PU-18 F773-OR-18 F774-WH-18

147-PU-18

1 CONN 7 2

B AIR HEATER 5I-7746

ATCH A/C COMPR CLUTCH SOL 117-6353(NOTE F) 154-0490(NOTE E)

B

200-BK-18 200-BK-18

B

B

309-GY-18 200-BK-6 200-BK-18

C468-BU-18 200-BK-18

A

L1

200-BK-18 200-BK-18

403-GN-18 J703-PK-18

B

A

877-YL-4

B

ALTERNATOR 5I-8071(NOTE F) (35A) 5I-8085(NOTE E) (50A)

B

A

T

T

109-RD-6

A

L14

L28

1 2

492-GY-18

200-BK-18 513-OR-18

(NOTE T) 147-PU-18

AIH COOLANT TEMP SENSOR 125-2982

COOLANT TEMP SENDER 5I-7578

C

JJ

A762-PU-18 788-YL-18

A718-PU-18 200-BK-18

B

AF

A587-YL-18 506-PU-18 403-GN-18 615-YL

403-GN-18 172-RD-18 147-PU-18

(NOTE T)(NOTE K) 1 CONN 7 (NOTE N) 2

L28

AG

(NOTE T) CONN 6 L31

G974-WH-18

D

AF

1 CONN 7 2

Z

Y

(NOTE N) (NOTE S) 147-PU-18

L26 Z

G975-YL-18 G973-OR-18 2 1

1 CONN 7 2 (NOTE T) K785-GN-18 2 780-PU-18 1 147-PU-18

CONN 5

L32

200-BK-18 321-BR-18

G973-OR-18 (NOTE K) 147-PU-18

A

A718-PU-18 492-GY-18 109-RD-6 403-GN-18 J703-PK-18 309-GY-18 513-OR-18 C468-BU-18 405-GY-18 304-WH-8 101-RD-4 877-YL-4 A762-PU-18 788-YL-18 K997-BU-18 K904-GN-18 308-YL-18 F774-WH-18 F773-OR-18 A761-PU-18 172-RD-18 L977-YL-18 763-BU-18 L978-GY-18 A769-GY-18 A768-BU-18 496-WH-18 491-PK-18 168-RD-18 487-OR-18 L971-GN-18 A771-PU-18 L974-GN-18 168-RD-14 495-GN-18 616-BU 322-GY-18 607-PK-18 K906-GN-18

2 1

G974-WH-18 L27 G975-YL-18

ATCH TRAVEL ALARM 3E-7738 BK BK/PK

L10

147-PU-18 G973-OR-18 147-PU-18 G974-WH-18

513-OR-18

491-PK-18 495-GN-18 430-BU-18 496-WH-18 K904-GN-18 A761-PU-18 487-OR-18 L971-GN-18 L975-PK-18 A771-PU-18 L978-GY-18 L974-GN-18 L977-YL-18 K997-BU-18 788-YL-18 A762-PU-18 763-BU-18 412-BU-18 C468-BU-18 321-BR-18 405-GY-18 L908-OR-18 L909-BU-18 403-GN-18 235-BK-18

492-GY-18 405-GY-18 C468-BU-18 A762-PU-18 788-YL-18 403-GN-18 513-OR-18 495-GN-18 496-WH-18 491-PK-18 A769-GY-18

E

412-BU-18 321-BR-18 513-OR-18 K997-BU-18 763-BU-18 L977-YL-18 L978-GY-18 L974-GN-18 A771-PU-18 K906-GN-18 K904-GN-18 A761-PU-18 F773-OR-18 F774-WH-18 513-OR-18 487-OR-18 168-RD-14 L971-GN-18 A768-BU-18 492-GY-18 405-GY-18 C468-BU-18 A762-PU-18 788-YL-18 A769-GY-18 495-GN-18 496-WH-18 491-PK-18

513-OR-18 519-PK-18

2 1

1 2 3 4 5 6 7 8 9 10 11 12

OR PK

200-BK-18 200-BK-18 200-BK-18 L977-YL-18 763-BU-18 L978-GY-18 A769-GY-18 A768-BU-18

200-BK-18 200-BK-18 B

200-BK-18 L977-YL-18

LEVEL FINISH SOL 121-1490

2 1

200-BK-18 763-BU-18

B

CHASSIS 200-BK-18 L978-GY-18

200-BK-18 308-YL-18 F774-WH-18 F773-OR-18 A761-PU-18 172-RD-18

TRAVEL SPEED SOL 121-1491

2 1 B

A769-GY-18 A768-BU-18

TRENCHING SOL 121-1490

2 1 B

ENG/PUMP CONT SOL 111-9916

2 1

L L1

8

7

G

147-PU-18 K907-BU-18 530-OR-18 L969-WH-18 L968-OR-18 F771-OR-18 F772-WH-18 308-YL-18

CONN 17 K785-GN-18 C L29 780-PU-18 A 147-PU-18 B JJ KK (NOTE N) (NOTE N) (NOTE S)

F771-OR-18 F773-OR-18 F772-WH-18 F774-WH-18

K785-GN-18 C 780-PU-18 A 147-PU-18 B AF (NOTE T) CONN 17

2

1 3

5

4 6

G

ATCH QUICK COUPLER SW 150-6988(NOTE N)

G K909-BU-18 K909-BU-18

1 2

3 G

ATCH SEAT HEATER SW 111-4783

G

ATCH POWER WINDOW SW 111-4789

ATCH LOWER WASHER SW 111-4786

185-YL-18

1 3 4

K907-BU-18 A770-PK-18

6 7

L969-WH-18 200-BK-18

9 10

L968-OR-18

12

2

185-YL-18 185-YL-18

5

K906-GN-18

8

A768-BU-18

11

A769-GY-18

185-YL-18 K906-GN-18 A768-BU-18 A769-GY-18 L968-OR-18 A770-PK-18 L969-WH-18 K907-BU-18 K909-BU-18 200-BK-18

L11

L13 L12 L9

L15

L14 L10

CONN 25

L9

EL S. SW 79

CONN 24

L11 200-BK-18 235-BK-14 K905-RD-14 L970-GY-18 954-GN-18 K911-PK-18 K912-GN-18 K997-BU-18

A CONN 23

L12

615-YL 615-YL-18 615-YL-18 508-PU-18 509-WH-18 511-BR-18 512-GN-18 191-WH-14 103-RD-18 118-GY 103-RD-18 129-BU-18 954-GN-18 L970-GY-18 K905-RD-14 615-YL-18 530-OR-18 A589-OR-18 A590-BU-18 590-GY-18 501-GN-18 A586-OR-18 200-BK-14 200-BK-14

L13

403-GN-18 A587-YL-18 506-PU-18 615-YL

MENT S. SW 79

A

L10

A584-BU-18 A583-YL-18

RAISE S. SW 80

A

R

ATCH SPEAKER(R) 7Y-5505 ATCH WINDOW CONT 117-6305 E SW. UP SW. DOWN NEUTRAL WIPER +B F. LIMIT GND R. LIMIT A591-PU-18

ATCH ANTENNA 106-0036

L971-GN-18 K997-BU-18 L975-PK-18 L970-GY-18 954-GN-18

L970-GY-18 A771-PU-18 L974-GN-18 A761-PU-18 F771-OR-18 L978-GY-18 492-GY-18 412-BU-18 L971-GN-18 F772-WH-18 L977-YL-18 763-BU-18 788-YL-18 A762-PU-18 405-GY-18 K907-BU-18 495-GN-18 491-PK-18 321-BR-18 403-GN-18 430-BU-18 C468-BU-18 K997-BU-18 K997-BU-18

K997-BU-18

K905-RD-14

K905-RD-18 K905-RD-18 235-BK-18 235-BK-18 308-YL-18

235-BK-14

496-WH-18

L975-PK-18 200-BK-18 A757-GY-18 A758-BR-18

DOME LAMP 096-0721

615-YL A584-BU-18 200-BK-18 200-BK-18 200-BK-18

A591-PU-18 200-BK-18

1 2 4 6 3 5

K904-GN-18 L969-WH-18 L968-OR-18

A755-PK-18 A756-BU-18 K911-PK-18 K912-GN-18

L972-BU-18

L3

954-GN-18 487-OR-18

200-BK-18 200-BK 200-BK-14 200-BK-18 200-BK-18 200-BK-18 200-BK-18

E

E

1 2 3 4 5 6 7 8

A

L4

ATCH SPEAKER(L) 7Y-5505 E

1 2 3 4 5 6 7 8 9 10 11 12

L969-WH-18 L968-OR-18 K907-BU-18 F772-WH-18 F771-OR-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 308-YL-18 L972-BU-18 A L908-OR-18 L909-BU-18 235-BK-18 A A771-PU-18 L978-GY-18 L974-GN-18 L977-YL-18 403-GN-18 788-YL-18 A762-PU-18 763-BU-18 412-BU-18 C468-BU-18 321-BR-18 405-GY-18 A 492-GY-18 491-PK-18 495-GN-18 430-BU-18 496-WH-18 K904-GN-18 A761-PU-18 487-OR-18 A

200-BK-18 K905-RD-14 235-BK-14 K911-PK-18 K912-GN-18 K997-BU-18

E

ATCH WINDOW LIMIT SW 117-6306(NOTE C) E

D

C538-OR-18 C537-GN-18

D

118-GY 506-PU-18 A584-BU-18 A583-YL-18 A586-OR-18 501-GN-18 530-OR-18 200-BK-14

E

L15

1 2 3 4 5 6 7 8

A

1 2 3 4 5 6 7 8

6 5 4 3 2 1

A

200-BK-14 103-RD-18 508-PU-18 509-WH-18 511-BR-18 512-GN-18

8 6 7 4 5 3 2 1 A589-OR-18 A590-BU-18 A587-YL-18 A583-YL-18 191-WH-14 A584-BU-18 615-YL

E

CONN 20

A

K997-BU-18 K911-PK-18 K912-GN-18 590-GY-18 103-RD-18 129-BU-18 403-GN-18 615-YL-18

CONN 19

CONN 18 A

CONN 22

A CONN 21

A B C

ATCH LOWER WIPER SW 111-4785

BACKUP EPR VALVE SW 114-0421

PLATFORM

L14

G

L3 LL

200-BK-18 235-BK-14 200-BK-14 200-BK-14 200-BK-18

L10 L14

615-YL-18 152-BU-18 575-YL-18 576-PK-18 200-BK-18 200-BK-18

615-YL-18 615-YL-18 578-BU-18 152-BU 152-BU-18 200-BK-18 200-BK-18

147-PU-18 200-BK-18

615-YL-18 615-YL-18 A589-OR-18 A590-BU-18 191-WH-18 200-BK-18 200-BK-18 G

G

A755-PK A756-BU A757-GY A758-BR 200-BK-

L4

BACKUP GOV SW 110-7884

304 WH 8

L33

LL (NOTE N)

615-YL-18 615-YL-18 A537-PK-18

CONN 26

LL

L14

K785-G

147-PU147-PU780-PU-

KK (NOTE N)

L908-OR-18 L909-BU-18 235-BK-18

ENG/PUMP CONT 119-9967(NOTE G) 119-9964(NOTE H) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

OPTION SENSOR (PWM) FRONT PUMP PRESS. SENSOR EPR VALVE (+) EPR VALVE (-)

1 11 2 12 3 4 5 6 7 8 9 10 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 34 35 36 37 38 39 40 31 32 33

+B +B GND GND KEY SW ON KEY SW START RS485 + (RH JOYSTICK) RS485 - (RH JOYSTICK) RS485 + (LH JOYSTICK) RS485 - (LH JOYSTICK) RS485 + (PEDAL) RS485 - (PEDAL) THROTTLE DIAL S1 THROTTLE DIAL S2 RS485 + (MONITOR) RS485 - (MONITOR) RS485 + (RADIO CONT) RS485 - (RADIO CONT) RS485 + (ELEC GOV) RS485 - (ELEC GOV) AIH INDICATOR FINE SWING SW THROTTLE DIAL S3 THROTTLE DIAL S4 RS485 + (VALVE CONT) RS485 - (VALVE CONT) RS485 + (SEMI AUTO) RS485 - (SEMI AUTO)

L4 L3

A

G

1 2 3 4 5 6 7 8

A757-GY-18 A758-BR-18 147-PU-18 530-OR-18 200-BK-18 185-YL-18 K906-GN-18 A768-BU-18 A769-GY-18 L968-OR-18 L969-WH-18 A770-PK-18 K907-BU-18 K909-BU-18 F772-WH-18 F774-WH-18 F773-OR-18 F771-OR-18

A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 L972-BU-18 A590-BU-18 A589-OR-18

5 2 1 3 4 6

CONN 15 A

G

1 2 3 4 5 6 7 8

BU-18 GN-18 GY-18 PK-18

L9

A

OR-18 BR-18

L10

615-YL-18 530-OR-18 590-GY-18 501-GN-18 A586-OR-18 A590-BU-18 A589-OR-18 A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 L972-BU-18 K907-BU-18 L969-WH-18 L968-OR-18 F771-OR-18 F772-WH-18 308-YL-18 200-BK-18

CONN 16

L12

AUX HYD PRESS. SW IMPLEMENT PRESS. SW BOOM RAISE PRESS. SW GOV ACTR FDBK GOV ACTR (A) TRENCHING SOL COOLANT SENSOR OPTION SENSOR (PWM) COOLANT LEVEL SW TRAVEL PRESS. SW GOV ACTR (B) LEVEL FINISH SOL TRAVEL SPEED SOL DUAL PWR SOL ENG SPEED SENSOR (+) ENG SPEED SENSOR (-) ENG OIL PRESS. SW SWING BRAKE SOL JOYSTICK +B OUT FUEL LEVEL SENSOR HYD OIL TEMP SENDER TRAVEL ALARM ALTERNATOR (P TERM.) AIR CLEANER SW ENG OIL LEVEL SW MONITOR +B OUT HYD OIL LEVEL SW

LOW IDLE SW HYD TANK INDICATOR HYD TANK PRESS. SW HAMMER PRESS. SW HYD OIL FILTER INDICATOR RS232C (TX) RS232C (RX) RS232C (GND)

CAB L4 L3 L31

L31 L1

6

5

4

POS SW 106-0107

A755-PK-18 A756-BU-18 A757-GY-18 A758-BR-18 200-BK-18

PK BU GN BR BK

2 3 4 5 1 6

1 W.CCW

S1 S2 S3 S4 COM

WIPER CONT 155-7042

D

Y/W Y/G

200-BK-14 200-BK-18 201-BK-18 200-BK-18 200-BK-18 200-BK A582-PU A581-GN A580-BR A579-OR

G G

A/C PHOTO SENSOR 113-3431 (NOTE J)

E

MOTOR

D

200-BK CAB

L4

WIPER MOTOR 122-9603

L3

OPERATOR STATION

WIRES THAT HAVE BATTERY VOLTAGE WHEN THE KEY SWITCH IS OFF. WIRES THAT HAVE BATTERY VOLTAGE WHEN THE KEY SWITCH IS ON.

ABBREV

COLOR

RD WH OR YL PK BK GY PU BR GN BU

RED WHITE ORANGE YELLOW PINK BLACK GRAY PURPLE BROWN GREEN BLUE

SYMBOL

STARTING CIRCUIT. GAUGE CIRCUIT.

CIRCUIT CONNECTED

WIPER/WASHER CIRCUIT.

ELECTRICAL CONNECTION TO MACHINE STRUCTURE

GROUND CIRCUIT. ENGINE/PUMP CONTROL CIRCUIT.

INTERNAL ELECTRICAL CONNECTION TO SURFACE OF COMPONENT CONNECTOR

START AID CIRCUIT. ALL DASHED LINES ARE ATTACHMENTS.

ATCH WIRE, CABLE, COMPONENT CIRCUIT GROUPING DESIGNATION

L4 L3

L#

L31

B

K785-GN-18 780-PU-18

ATCH QUICK COUPLER SOL 2 121-1491(NOTE T)

200-BK-18 200-BK-18

AG (NOTE T) 780-PU-18 1 200-BK-18 2

ATCH QUICK COUPLER SOL 1 121-1490(NOTE T)

1 2

J

CONN 36

322-GY-18 322-GY-18 200-BK-18 200-BK-18

616-BU 322-GY-18 200-BK 200-BK-18 325-PK-18 607-PK-18 168-RD-14 200-BK-18 200-BK-14

325-PK-18 607-PK-18 168-RD-14 200-BK-18 200-BK-18

607-PK-18 200-BK-18 200-BK-14 168-RD-14 325-PK-18

616-BU 200-BK 322-GY-18 200-BK-18 B

B A C

N

J K

616-BU 200-BK 322-GY-18 200-BK-18

616-BU 322-GY-18

IDENT

616-BU 616-BU 200-BK 200-BK

K

B

ATCH BOOM LAMP 153-2521

ATCH BOOM LAMP 153-2521

HORN 7Y-3919

B HORN 7Y-3920

607-PK-18 200-BK-18

B

200-BK-14 168-RD-14 325-PK-18

S

S

R

R

ATCH REFUELING START SW(NO) 6T-9442

ATCH REFUELING STOP SW(NC) 9X-4184

N

N

ATCH REFUELING RELAY 1 149-5050

ATCH REFUELING RELAY 2 149-5050

323-WH-14 200-BK-14

N

1 2

168-RD-14 168-RD-14 L976-GN-18 L976-GN-18 365-YL-18

R

2 L976-GN-18 168-RD-18 1 CONN 39

S

325-PK-18 365-YL-18

CHASSIS

N

168-RD-18 168-RD-14 L976-GN-18 L976-GN-18 365-YL-18 365-YL-18

2 1 CONN 38

200-BK-18 200-BK-18 200-BK-18 200-BK-18 200-BK 200-BK-18 200-BK-18 200-BK-14

CONN 37

N

PART NO.

LOC

HARNESS AS. A 150-7009 B 121-1036 C 167-3494 D 153-2555 E 150-6989 G 150-7010 H 153-2542 J 121-1010 K 145-0560 L 116-0243 N 167-3496 P 111-4841 R 116-0096 S 116-0098 T 150-7022 V 150-7026 167-3495 W X 116-0258 Y 140-0850 Z 140-0851 JJ 150-7003

G-3 A-2 G-8 B-5 B-6 E-4 H-4 C-2 C-2 G-1 B-2 H-3 B-2 B-3 J-2 H-2 G-8 H-5 H-3 D-8 H-2

KK LL AB AF AG CHASSIS LAMP 153-2523

D

CIRCUIT NOT CONNECTED

HEATER AND AIR CONDITIONER CIRCUIT.

AG (NOTE T) K785-GN-18 1 200-BK-18 2

DESCRIPTION BLADE, SPADE, RING, OR SCREW TERMINAL

150-7002 150-6987 167-3579 163-6667 163-6668

E-5 E-5 G-8 D-6 C-3

WIRE AS. ZZ YY XX WW VV UU SS PP MM AC AD AE

111-4826 111-4831 111-4830 111-4829 128-8936 128-8937 128-8938 132-1827 153-2492 163-6691 163-6692 163-6693

G-7 G-7 G-7 G-7 H-9 H-9 H-7 A-2 E-9 G-7 H-9 H-7

CABLE AS. AA BB CC GG HH

4I-5422 116-0080 132-1804 116-0234 116-0233

F-9 F-9 G-9 G-7 G-7

STRAP AS. 134-3344 DD EE 132-1805 FF 7G-1060

G-9 A-9 G-6

(NOTE P)

C (NOTE K) (NOTE K) (NOTE K) (NOTE N) (NOTE S) (NOTE N) (NOTE N) (NOTE R) (NOTE T) (NOTE T) (NOTE P)

(NOTE P) (NOTE P) (NOTE E) (NOTE R) (NOTE R) (NOTE R)

B

+ ATCH REFUELING PUMP 123-3928

THIS SCHEMATIC IS FOR THE 311B/312B-HYD EXCAVATOR. PART NUMBER: 121-0983 HE09 COMPONENTS ARE SHOWN INSTALLED ON A FULLY OPERABLE MACHINE WITH THE KEY AND ENGINE OFF. UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE. NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE. NOTE B: USE WITH COLD WEATHER.

K906-GN-18 200-BK-18

B

SWING BRAKE SOL 121-1491

1 2

B

325-PK-18 200-BK-18 200-BK-18 K906-GN-18 495-GN-18

616-BU 322-GY-18 607-PK-18 168-RD-14

495-GN-18 200-BK-18 325-PK-18

L4 L3

1 2

NOTE C: USE WITH ELECTRIC OPENABLE WINDSHIELD.

FUEL SENSOR 105-9911

NOTE D: NOT NECESSARY FOR ELECTRIC OPENABLE WINDSHIELD. NOTE E: USE FOR OUTSIDE JAPAN.

YL BK

NOTE F: USE FOR JAPAN.

A

NOTE G: USE WITH X270,X271,X297,X298. B

PP 1 2 CONN 33

325-PK-18

NOTE H: USE WITH X272,X273,X275,X299,X300,X302.

PP

NOTE J: USE WITH A/C UNIT. NOTE K: USE WITH X273.

ATCH REFUELING SW 5C-6108

NOTE N: USE WITH X272,X275. NOTE P: NOT USE WITH COLD WEATHER FOR JAPAN. NOTE R: USE WITH COLD WEATHER FOR JAPAN.

L31

NOTE S: NOT USE WITH ALL ATTACHMENT. L1

NOTE T: USE WITH ALL ATTACHMENT OF X272,X275.

3

2

1

E97828

Wire Des Wire Number

Wire Color

Description Power Circuits

101

RD

103

YL

Battery (+) Dome Lamp / Monitor / Radio Back Up

105

BR

Key Sw

109

OR

Alt Output (+) Term.

111

YL

Timer Relay To Engine/Pump Control

112

PU

Main Relay Output

113

OR

Radio / Switch Panel

114

GN

Horn Relay

115

PK

Cab/Chassis Lamp Relay

116

BR

Fan Relay Output

118

GY

Wiper Control / Washer

120

YL

24V to 12V Converter (Input and Memory)

124

GN

Air Conditioner / Heater

129

BU

Cigar Lighter

135

BU

24V to 12V Converter (Output)

140

BU

Auto Lubrication Pump

147

PU

Quick Cpler Sw / Seat Htr Sw / Crsh Sol / Atchs

149

PU

Boom Lamp Relay

150

OR

Hyd Lock Sol Relay / Neutral Start Limit Sw

151

GN

Neutral Start Limit Sw To Hyd Lock Sol Relay

152

BU

Lower Wiper Motor / Lower Washer Switch

154

WH

Neut Start Switch To Neut Start Relay

168

GN

Hyd Oil Filter Ind / Refueling Relays 1 and 2

172

GN

Engine Governor Actuator

175

RD

Fan

176

OR

Aux Ckt

177

OR

Main Breaker Output

180

GN

Aux Ckt

185

YL

Backup EPR Valve Sw

189

WH

Timer Relay Output #2

Real Time Error Cod

Wire Description

tchs

Wire Number

Wire Color

578

BU

590

GY

Wiper SW To Intermittent Module

592

BU

DC/DC Converter Power Output

A513

RD

DC/DC Converter Memory Output

A537

PK

Seat Heater (Resistive Element In Cushion)

A579

OR

Wiper Motor +

A580

BR

Wiper Motor -

A581

GN

Wiper Motor Raise

Washer - Aux

A582

PU

Wiper Motor Stop

A583

YL

Power Window Interlock To Wiper Cont

A584

BU

Front Window Limit SW To Wiper Cont

A586

OR

Wiper SW To Wiper Cont

A587

YL

Power Window Cont To Safety Sol Relay

A588

GN

Safety Sol Relay To Sol

A589

OR

Power Window Up

A590

BU

Power Window Down

A591

PU

Rear Window Limit SW

C537

GN

A/C Photo Sensor + Sig

C538

OR

A/C Photo Sensor - Sig

607

PK

Flood Lamp - Front

615

YL

Cab Flood Lamp/Rops

616

BU

Bucket Flood Lamp/Boom Flood Lamp

763

BU

Torque Converter SW

780

PU

Quick Coupler Sw to Quick Coupler Solenoid 1

786

GN

Eng Speed Cont - Hi Press SW

788

YL

Eng Speed (+)

791

PK

Eng Speed Cont - Lo Sol

A718

PU

Start Aid Coolant Sensor Signal

ay

2

Description Accessory Circuits (Continued)

Lighting Circuits

Control Circuits

Code

Description of P

1301 1302 1303 1304 1305 2201 2202 2301 2302 2303 2304 3201 4101 4102 4103 4104 4105 4106 4107 4108 4109 410A 410b 4201 4202 4203 4204 4205 4206 4207 4208 4209 420A 420b 420C 420D 420E 4301 4302 4303 A201 A202

Engine oil pressure is too low. Engine coolant temperature is too high. Hydraulic oil temperature is too high. Air filter is clogged. Battery voltage is not normal. Governor actuator feedback sensor circuit is open or shorted to battery vol Governor actuator feedback sensor circuit is shorted to body ground. Governor actuator feedback signal is not stable. Governor actuator feedback signal deviates. Governor actuator does not move. Calibration data error. Monitor RAM is not normal. Electric power supply to the controller is too high (43 volts). Over-current in proportional reducing valve. Proportional reducing valve circuit is open. Spare solenoid 1 (digital output) over current. Over-current in digital output (trenching solenoid). Over-current in digital output (fine control solenoid). Over-current in digital output (travel speed change solenoid). Over-current in digital output (travel alarm). Spare. Over-current in digital output (swing brake solenoid). Spare solenoid 2. Engine speed is not normal. Engine coolant temperature sensor is shorted to body ground. Hydraulic oil temperature sensor is shorted to body ground. PWM sensor of pump delivery pressure is shorted to body ground. Spare PWM sensor 1 is shorted to body ground. Spare PWM sensor 2 is shorted to body ground. PWM sensor of pump delivery pressure is open in circuit. Spare PWM sensor 1 circuit is open. Spare PWM sensor 2 circuit is open. Fuel sensor is shorted to body ground. Fuel sensor is open or shorted to battery voltage. Electric power supply is too low (below 23 volts). Electric power supply is too high (above 32 volts). Engine speed dial is not in one of the 10 specified positions. Data mismatch 1 between alternator and speed sensor (alternator is abnor Data mismatch 2 between alternator and speed sensor (speed sensor is a Engine stalls. Monitor communication is not normal. Monitor takes too much time to respond to controller's signal.

rror Codes

ption of Problems

o battery voltage. round.

und.

ator is abnormal). d sensor is abnormal).

311B and 312B Excavat Electrical System 8GR1-UP

vator

SENR9236-01 April 2000

Electrical Schematic Symbols An

T

Pressure Symbol

Temperature Symbol

Leve Symbo

Normally open switch that will close with an increase

Normally open switch that is closed due to an applied specific decrease in that condition.

Normally closed switch that will open with an increase

Normally closed switch that is open due to an applied with a specific decrease in that condition.

The circle indicates that the component has screw te

ols And Definitions

Level Symbol

Flow Symbol

ncrease of a specific condition (temp-press-etc.).

n applied condition, and will open again with a

increase of a specific condition.

n applied condition, and will close again

screw terminals and a wire can be disconnected

180

GN

185

YL

Aux Ckt Backup EPR Valve Sw

189

WH

Timer Relay Output #2

191

WH

Power Window (Switch and Control)

200

BK

Main Chassis

201

BK

Operator Monitor Return

235

BK

Electronic Pump Ctrl Gnd

304

WH

Starter Relay No. 1 Output

306

GN

Starter Relay Coil To Neut Start SW

307

OR

Key SW To Neut Start SW

308

YL

Main Power Relay Coil /

309

GY

Alt Regulator Term.

310

PU

Start Aid SW To Start Aid Sol

320

OR

Horn Relay Coil To SW

321

BR

Bckp Alarm Lamp Travel Alarm

322

GY

Warning Horn (Forward)

323

WH

Fuel Pump Power

325

PK

Fuel Pump Relay Cut-Out

330

YL

Neut Start Relay Coil

365

YL

Fuel Pump Relay To Switch

403

GN

Engine/Pump Cntrl To Alternator (P) Term.

405

GY

Engine/Pump Cntrl To Oil Pressure Sw

412

BU

Engine/Pump Cntrl To Coolant Level Sw

430

BU

Engine/Pump Cntrl To Air Filter Sw

487

OR

Engine/Pump Cntrl To Hyd Oil Filter Indicator

491

PK

Engine/Pump Cntrl To Hyd Oil Temp Sender

492

GY

Engine/Pump Cntrl To Coolant Temp Sender

495

GN

Engine/Pump Cntrl To Fuel Level Sensor

496

WH

Engine/Pump Cntrl To Hyd Oil Level Sw

C468

BU

Engine/Pump Cntrl To Engine Oil Level Sw

501

GN

Wiper - Front (Low)

Ground Circuits

Basic Machine Circuits

Monitoring Circuits

Accessory Circuits 506

PU

Washer - Front

508

PU

Radio Speaker - Left

509

WH

Radio Speaker - Left (Common)

511

BR

Radio Speaker - Right

512

GN

Radio Speaker - Right (Common)

513

OR

A/C Compressor/Refrigerant Pressure SW

519

PK

Thermostat To Refrigerant Press. SW

530

OR

Washer Sw To Wiper Control

575

YL

Wiper - Aux (Park)

576

PK

Wiper - Aux (Low)

Connector L Connector Number CONN 1 CONN 2 CONN 3 CONN 4 CONN 5 CONN 6 CONN 7 CONN 8 CONN 9 CONN 10 CONN 11

Service Connector

788

YL

Eng Speed (+) Eng Speed Cont - Lo Sol

791

PK

A718

PU

Start Aid Coolant Sensor Signal

A755

PK

Throttle SW #1

A756

BU

Throttle SW #2

A757

GY

Throttle SW #3

A758

BR

Throttle SW #4

4302 4303 A201 A202 A203

A761

PU

Governor Actuator Feedback To E/P ECM

A762

PU

Eng Speed (-)

A768

BU

Pump Control Valve #1 (+)

Part No.

A769

GY

Pump Control Valve #2 (-)

A770

PK

Electronic Pump Control Bypass SW To Resistor

4I-5394 102-8016 111-9916

Sender: Resistor: Solenoid:

A771

PU

Float SW

F771

OR

Backup SW

121-1490

Solenoid:

F772

WH

Backup SW

F773

OR

Governor Accel

F774

WH

Governor Decel

121-1491

Solenoid:

163-6616

Resistor:

J703

PK

Alt Pulse Sig To Anti-Start Relay (was D746 PK)

K785

GN

Quick Coupler Sw to Quick Coupler Solenoid 2

877

YL

Glow Plug Magnetic SW To Glow Plug Hammer SW A

954

GN

G973

OR

Boom Raise Press SW to Crush Press SW

G974

WH

Crush Sol to Demolition Relay

G975

YL

Crush Press SW to Demolition Relay

K904

GN

Pump Discharge - Signal

Resistor, Sender and Solenoid

BU

Pump Discharge - +B

GN

Swing Brake Sol - Signal

Part No.

K907

BU

Swing Brake Sol - +B

106-0179

er

K909

BU

Backup SW - +B

er

K911

PK

E/P Controller - RS485 (+)

GN

E/P Controller - RS485 (-)

K997

BU

+V Sensor

L908

OR

Controller RS-232C Tx

L909

BU

Controller RS-232C Rx

L968

OR

Electronic Pump Control Ps Valve (-)

L969

WH

Electronic Pump Control Ps Valve (+)

or

Main Relay

Function

Actuate

Implement Pressure Travel Pressure

1520 ± 98 kPa (220.4 ± 14 psi) 2646 ± 196 kPa (383.8 ± 28.4 psi)

106-0180

Boom Raise Pressure

106-0181

Aux Hydraulic Pressure Boom Raise Pressure Crush Pressure 1 and 2 Hammer Pressure

490 ± 49 kPa (71.1 ± 7.1 psi)

L970

GY

Engine/Pump Control To Switch Common

L971

GN

Engine/Pump Control To Travel Pressure Sw

L972

BU

Engine/Pump Control To Low Idle SW

L974

GN

Engine/Pump Cntrl To Boom Raise Press Sw

L975

PK

Engine/Pump Control To AIH Indicator

L976

GN

Excavator Fuel Pump Switch

Engine/Pump Control:

L977

YL

Trenching Sol

Starting and Charging:

L978

GY

Level Finish Sol

Related Electrical Service Ma Title

15 5 A 1

2

22

Schematic Location

35

24

21

32

nnector Location

mber

Hydraulic Oil Temper Backup Engine / Pump Contr Level Finish Quick Coupler 1 Trenching Hydraulic Lock Swing Brake Quick Coupler 2 Travel Speed

Off Machine Switch Spe

K905

K912

Component Descriptio

¹ At room temperature unless otherwise noted.

K906

or

Data mismatch 2 between alternator and speed sensor (speed sensor is a Engine stalls. Monitor communication is not normal. Monitor takes too much time to respond to controller's signal. Communication is abnormal in controller.

4 E

Machine Location

H-9

D

G-8

D

G-8

D

G-8

D

D-8

D

D-8

D

D-8

D

D-8

D

D-7

D

D-7

D

G-7

D

36

8

D

20 23

19

30

25

14 39

37

12

9

31 34

26 38

29

40

41

F

C

7 3 16

18

10

6

11

B 17

d sensor is abnormal).

Solenoid Specifications Description

Resistance (Ohms)¹

c Oil Temperature

6815 ± 681 47 ± 2.4 11.7 ± 1.2

Pump Control ish oupler 1 g c Lock ake oupler 2 peed

32.0 ± 3.2

32.0 ± 3.2

8GR1-UP 8HR1-UP 8JR1-UP 9GR1-UP 9HR1-UP 9MR1-UP 2LS1-UP 2MS1-UP 2NS1-UP 3ES1-UP 3FS1-UP

(1) 48 ± 2.4 (2) 48 ± 2.4

ay

tch Specification

tuate

Deactuate

± 98 kPa ± 14 psi) ± 196 kPa ± 28.4 psi)

1127 kPa MIN (163.5 psi MIN) 2156 ± 196 kPa (312.7 ± 28.4 psi)

± 49 kPa ± 7.1 psi)

290 kPa MIN (42.1 psi MIN)

Contact Position Normally Open Normally Open

Normally Open

Component Locatio Schematic Location A-9

Machine Location 1

Sensor - A

Air Heater

C-8

2

Sensor - F

Alarm - Travel

D-9

3

Sensor - P

Alternator

C-9

4

Sensor - S

Battery

F-9

6

Socket - 1

Block - Terminal

G-7

D

Solenoid -

Breaker - Alt

G-9

D

Solenoid -

Breaker - Main

H-9

D

Solenoid -

B-4, C-4

7

Solenoid -

Control - Power Window

B-6

15

Solenoid -

Control - Wiper

E-2

A

Solenoid -

Component

rvice Manuals Form Number RENR1998 RENR1007

Actuator - Eng Governor

Control - Eng/Pump

A 12

Converter

J-2

8

Solenoid -

Converter - 12V 5A

H-5

9

Solenoid -

Solenoid -

Fuse - Block 20 19

18

10 27

C

7

B 17

28 13

G

J-4, 5, 6

C

Indicator - Hydraulic Oil Filter

B-7

E

Switch - Q

Lighter - Cigar

E-2

A

Switch - A

Meter - Service

F-2

A

Switch - A

Monitor

F-2

A

Switch - B

Motor - Lower Washer

F-9

40

Switch - B

Motor - Lower Wiper

G-2

G

Switch - B

Motor - Starter

A-9

14

Switch - C

Motor - Washer

F-9

41

Switch - D

Motor - Wiper

E-2

A

Switch - E

Panel - A/C Switch

H-6

C

Switch - E

Pump - Auto Lubrication

E-9

16

Switch - H

Pump - Refueling

B-2

17

Switch - H

Relay - Air Heater

H-7

D

Switch - H

The circle indicates that the component has screw te from it.

No circle indicates that the wire cannot be disconnect

This indicates that the component has a wire connec

This indicates that the component does not have a w by being fastened to the machine.

© 2000 Caterpillar All Rights Reserved

Harness And Wire Electrical Schem Location Component Sensor - AIH Coolant Temp

Schematic Location C-9

Machine Location 21

Sensor - Fuel Level

A-2

23

Sensor - Pump Discharge Press

A-2

24

Sensor - Speed

B-8

25

Socket - 12V 5A

H-5

A

Solenoid - Air Conditioner Clutch

B-9

26

Solenoid - Eng/Pump Cont

A-7

F

Solenoid - Hydraulic Lock

H-2

G

Solenoid - Level Finish

A-7

F

Solenoid - Quick Coupler #1

C-2, H-2

32

Solenoid - Quick Coupler #2

C-2, H-2

32

Solenoid - Swing brake

A-2

32

Solenoid - Travel Speed

A-7

F

Solenoid - Trenching

A-7

F

Switch - Quick Coupler

E-5

B

Switch - Air Cleaner

F-8

35

Switch - Aux Hyd Pressure

G-2

G

Switch - Backup EPR Valve

D-4

C

Switch - Backup Gov

D-5

C

Switch - Boom Raise Press

C-7

34

Switch - Coolant Level

E-9

36

Switch - Disconnect

G-9

D

Switch - Engine Oil Level

B-9

37

Switch - Engine Oil Pressure

B-9

38

Switch - Hammer Press

G-2

G

Switch - Horn

H-2

C

Switch - Hydraulic Oil Level

B-7

E

A

AA

1 2

1

Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.

Receptacle

Plug 2

Pin or Socket Number Wire, Cable, or Harness Assembly Identification Single Wire Connector C

A

A 325-PK-14

Pin

AA 1

325-PK-1

Socket

2

Circuit Nu Identificat

screw terminals and a wire can be disconnected

sconnected from the component.

e connected to it that is connected to ground.

have a wire connected to ground. It is grounded

Printed in U.S.A.

chematic Symbols 1 2 a

Typical representation of a Sure-Seal connector. The plugand receptacle contain both pins and sockets.

ins

ess on

Component Part Number

9X-1123 325-PK-14

Wire Color

200-BK-14

Circuit Number dentification

Wire Gauge

CONN 9 CONN 10 CONN 11 CONN 12 CONN 13 CONN 14 CONN 15 CONN 16 CONN 17 CONN 18 CONN 19 CONN 20 CONN 21 CONN 22 CONN 23 CONN 24 CONN 25 CONN 26 CONN 27

12V 5A Socket

CONN 28 CONN 29 CONN 30 CONN 31 CONN 32 CONN 33 CONN 34 CONN 35 CONN 36 CONN 37 CONN 38

CONN 39 The connectors shown in this chart are for h Connectors that join a harness to a compon component. See the Component Location C

D-7

D

D-7

D

G-7

D

G-7

D

F-6

G

E-6

G

E-6

G

E-6

G

D-6

G

B-6

A

B-6

A

B-5

A

B-5

A

B-5

G

B-5

G

C-5

G

C-5

11

E-5

B

H-5

A

H-5

30

H-5

G

H-4

G

H-4

G

H-4

G

A-3

23

H-2, H-3

G

J-2

30

C-2

12

B-2

17

B-2

28

B-2 27 hart are for harness to harness connectors. to a component are generally located at or near the nt Location Chart.

40

41

C 9

6 39

36

D

A 20

11

26

15

21

30

8

35

16 3

7 B

5 4 22

10

38 32

2

34

12

31 37 25

E

10

23

14

19

1

29 24

F

18

17

Machine Harness And Com

C

A

G 20

7 B

10

12

10 13 19

Pump - Auto Lubrication

E-9

16

Switch - H

Pump - Refueling

B-2

17

Switch - H

Relay - Air Heater

H-7

D

Switch - H

Relay - Boom Lamp

J-8

D

Switch - Im

Relay - Chassis/Cab Lamp

J-9

D

Switch - K

Relay - Demolition

H-8

D

Switch - L

Relay - Fan

J-7

D

Switch - L

Relay - Horn

J-9

D

Switch - N

Relay - Hydraulic Lock Solenoid

J-8

D

Switch - O

Relay - Main

H-8

D

Switch - P

Relay - Neutral Start

J-8

D

Switch - P

Relay - Refueling 1

B-2

18

Switch - P

Relay - Refueling 2

B-2

19

Switch - R

Relay - Start

H-7

D

Switch - R

Relay - Start Cont

J-7

D

Switch - R

Relay - Timer

J-7

D

Switch - R

Resistor - Backup

J-9

D

Switch - S

Resistor - Main Relay

J-8

D

Switch - T

Seat With Seat Heater

F-5

20

Switch - T

Sender - Coolant Temp

C-9

22

Switch - W

Sender - Hydraulic Oil Temp

B-7

E

Unit - Air C

Sensor - A/C Photo

E-3

A

Unit - Air H

18 27

Machine locations are repeated for components located close together. A = Located inside of cab.

17

28

d Component Locations

B = Located inside of right console. C = Located inside of left console. D = Located around relay panel. E = Located around hydraulic oil tank. F = Located around pilot manifold. G = Located under platform.

Switch - Hammer Press

G-2

G

Switch - Horn

H-2

C

Switch - Hydraulic Oil Level

B-7

E

Switch - Implement Swing Press

B-7

32

Switch - Key

E-3

B

Switch - Lower Washer

E-4

B

Switch - Lower Wiper

E-4

B

Switch - Neutral Start Limit

H-2

C

Switch - One Touch Low Idle

F-3

B

Switch - Panel

F-3

B

Switch - Power Window

E-4

B

A-6, G-2

A

Switch - Refrigerant Low Press

E-9

39

Switch - Refueling Level

A-2

29

Switch - Refueling Start

B-2

27

Switch - Power Window Limit

Switch - Refueling Stop

B-3

28

Switch - Seat Heater

E-5

B

Switch - Throttle Position

E-3

B

Switch - Travel Press

B-7

31

Switch - Window Limit

G-2

A

Unit - Air Conditioner

H-6

30

Unit - Air Heater Control

J-7

D

Circuit Nu Identificat

Electrical Schematic Symbols And De

FUSE - A component in an electrical circuit that will ope through it.

REED SWITCH - A switch whose contacts are controlle contacts of a normally open reed switch; it opens the co

T

SENDER - A component that is used with a temperatur measures the temperature or pressure. Its resistance c gauge of the temperature or pressure.

RELAY (Magnetic Switch) - A relay is an electrical com It has a coil that makes an electromagnet when current can open or close the switch part of the relay.

CIRCUIT BREAKER (C/B) - A component in an electric much current flows through it. This does not destroy th become part of the circuit again.

SOLENOID - A solenoid is an electrical component that that makes an electromagnet when current flows throug close a valve or move a piece of metal that can do work

MAGNETIC LATCH SOLENOID - A magnetic latch sole activated by electricity and held latch by a permanent m that make electromagnet when current flows through the the latch coil circuit open at the time the coil latches.

Circuit Number dentification

Wire Gauge

And Definitions

at will open the circuit if too much current flows

e controlled by a magnet. A magnet closes the ens the contacts of a normally closed reed switch.

emperature or pressure gauge. The sender sistance changes to give an indication to the

ctrical component that is activated by electricity. en current flows through it. The electromagnet

an electrical circuit that will open the circuit if too destroy the circuit breaker and it can be reset to

onent that is activated by electricity. It has a coil ws through it. The electromagnet can open or n do work.

latch solenoid is an electrical component that is manent magnet. It has two coils (latch and unlatch) hrough them. It also has an internal switch that places tches.