RENR1439

March 1998

120H Motor Grader (ES Version)

Electrical System
6NM1-254
9YR1-329

© 1998 Caterpillar Printed in U.S.A.

All Rights Reserved
 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
A A
AIR DRYER XX 25A CONVERTER BU 3 + BATTERY 2 113-OR A MOTOR A
8W-3087 YY REAR
MOTOR BK-0 24V IN 176-OR-14 BREAKER CONN 27 RD 2 728-BU GROUND 3 200-BK - + 507-WH
E L32 L32 WASHER 200-BK 200-BK
GROUND 200-BK-10 3T-2662 BK 1 200-BK GROUND (RADIO) 6 200-BK A MOTOR A 200-BK
BK-22 XX EE K FRONT LOWER MOTOR 7T-8891 200-BK L10 L10
1 122-BU-14 +12V RADIO 5 592-BU 200-BK
BK-22 2 200-BK SECONDARY LOCALIZED 12V OUT (NOTE E) 176-OR-14
EE EE
1 101-RD-14
PRIMARY 24 TO 12 VOLT +24V IN 1 102-RD WASHER A - + A FRONT UPPER + -
200-BK 200-BK
STEERING GROUND 15A STEER SW CONVERTER L66 7T-8891 WASHER
IGNITION 113-OR 2 113-OR 8T-8640 +12V MEMORY 4 A513-PK 7T-8891 507-WH 200-BK
CONN 8 MOTOR STUD 119-1733 506-PU 200-BK L32
EE L21 L21
CCC E 117-3915 24V TO 12V CONVERTER 578-BU
3E-8646 L72 L72 CONN 64
618-YL 5 12V RADIO 618-YL
605-YL 1 (EUROPEAN VERSION) L32 L32 L32 606-GY L53 A P
604-OR 2 SECONDARY 135-5946 101-RD-14 L13 L13 L13 L13 606-GY 606-GY
L8 L13 1
617-BR 3 L51 STEERING K L16 L16 L16 L16 L16 605-YL 2 605-YL

619-GN
606-GY 4 RELAY ANTENNA B+ MEMORY YL A513-PK L12 L12 L12 611-PU 3 611-PU
5 L12
200-BK 6 3E-0154 9W-3072 B+ RD 6 592-BU L65 L65 L65 L65 200-BK 619-GN 4 619-GN P
YY WW CABLE AS. GROUND BK 3 200-BK 114-RD 5 200-BK 5
L35
F NOTE G RD-0 RD-0 9X-3073 + LH SPEAKER WH 2 508-PU L13 L35 L35 L35 322-GY 6 617-BR 611-PU 4 BU-18 F
AAA - LH SPEAKER WH/BK 1 509-WH WH 3 L16 617-BR 7 618-YL 619-GN 6 RD-18 619-GN
L13 L47

L8
NNN AAA + RH SPEAKER GY 8 511-BR RD 1 108-RD L12 INSTRUMENT CONSOLE 618-YL 617-BR 3 WH-18
STOP/TAIL/TURN LAMP NOTE F AND G AAA - RH SPEAKER GY/BK 7 512-GN 2 200-BK L10 605-YL 1 YL-18
BK
--------

L30
618-YL ANTENNA 4 113-OR SPEEDOMETER 200-BK 200-BK 2 BK-18

617-BR
605-YL
K

101-RD-14
727-GN
NOTE F DOME LAMP A FORWARD

200-BK
605-YL 110-2338

462-YL

A513-PK
8C-9678 COOLANT ARTICULATION HORN

509-WH
113-OR

512-GN
604-OR 606-GY 601-GY LAMP 8D-1429 609-YL 114-RD

511-BR

508-PU
592-BU
1 RD

200-BK
CONN 30 M
617-BR 321-BR 605-YL TEMP NOTE H 322-GY 2 RD SOLENOID 3E-7586 HI/LOW/POS/TURN LAMP
LEFT SPEAKER

A429-YL
CCC E L37 L37 M GRD L10 7T-9074

417-GY
606-GY 200-BK 618-YL 6T-7695 STD, 3E-7587 ATCH
STOP NNN 200-BK 1 321-BR CONN 25 C A 617-BR GAUGE SEND K

449-BU
CONN 65 IGN IGN

L48

611-PU
RD 1 604-OR 2 200-BK 9 160-PU 556-WH 608-GN CLUSTER 508-PU

L72
L17 L72 + L53 SIDE TURN/CLEARANCE LAMP
WH 2 617-BR 8 334-BU 608-GN 310-PU 124-0384 M 509-WH -

617-BR
200-BK
TAIL SEND SEND IGN 117-8318

321-BR
GGG C

200-BK
BR 3 605-YL 1 462-YL 310-PU 618-YL M K

200-BK

L10
BK 4 200-BK 2 727-GN L35 L45 L45 308-YL 113-OR 1 WH-18 (24 V) M L14 L14
6 727-GN 727-GN GRD GRD
7 417-GY 3 417-GY 8 RD-18 (12 V) SIDE
L51 L51

113-OR
TURN TURN

617-BR

L47
1 136-GN 4 136-GN 441-OR 6 OR-18 611-PU
GGG

L98
4 728-BU 5 728-BU 617-BR 4 PU-18 (24 V)
200-BK
200-BK

OPERATOR STATION
DIFFERENTIAL A

556-WH

617-BR
604-OR MOTOR RELAY GN-18 727-GN 2 308-YL 6 A429-YL 3 GN-18 (12 V) TACHOMETER

618-YL
200-BK
1

10
UNLOCK SOLENOID 110-8467

619-GN
1
2
3
4
5
6
7
8
9
200-BK 9 GY-18

606-GY
618-YL GY-18 2 417-GY 3 200-BK 7 STEERING CONSOLE A429-YL

611-PU
OPR PANEL 200-BK
606-GY 7T-9073 5 403-GN 403-GN SERVICE J 447-PK 7 PK-18 LAMP 8D-1429

538-OR
A

200-BK
C

617-BR
539-BU

618-YL
CONN 42

618-YL
L2 E METER NN J CONN 39 EMS TEST SW

556-WH
NOTE H REAR

308-YL

605-YL
606-GY

619-GN
5 YL-18

322-GY
114-RD

601-GY
RD-18 1 136-GN 403-GN 403-GN 601-GY

611-PU
+ BATTERY 1 FRONT
L55 L55 3E-9359 106-2477 CLEARANCE

L47
200-BK GN 2 2 KEY SW YL-18 2 308-YL 3 608-GN 608-GN 2 601-GY 601-GY 404-YL 200-BK 2 BK-18 IGN CLEARANCE

617-BR
200-BK
605-YL
NNN GN 1 PK-18 9 5 447-PK 405-GY 1 CAB FLOOD J J 1 322-GY 200-BK NOTE J 201-BK L72 M
1 L81 LAMP SEND
LAMP RELAY HORN SW A

610-OR
RD 1 617-BR BR-18 6 2 405-GY 403-GN 2 + - A429-YL 8M-6176 M GRD CONN 49

200-BK
A429-YL
CONN 38 J M
ARC SUPPRESSOR 3E-6477 8X-9440

200-BK
160-PU
334-BU

1
200-BK

2
3
4
BK 2 200-BK BK-18 8 200-BK 4 413-BR 413-BR 3 308-YL 417-GY CONN 58 200-BK SIG

200-BK
GROUND L54 L54 L65 R J L30 GRD
105-8827 J P

200-BK
200-BK
200-BK

200-BK
A M

102-RD
BU-18 4 200-BK 6 201-BK 447-PK 4 4 310-PU 201-BK 403-GN

C
A
B
LICENSE PLATE J L97

3
2
1
610-OR

113-OR
PU-18 5 728-BU 7 441-OR 201-BK 5 201-BK 404-YL 403-GN 113-OR

450-YL

617-BR
449-BU
STEER SW J 5 1 IGN

556-WH
JJJ HH CONN 9 L24

403-GN
101-RD

200-BK
LAMP CONN 24 85 86 PPP PPP

L80
L79

617-BR
727-GN
OR-18 3 8 406-PU 441-OR 6 415-GN 450-YL 113-OR 8 113-OR

200-BK

200-BK
462-YL
-------- 85 86 J PANEL LAMP M FUEL M

617-BR
200-BK
200-BK

605-YL
608-GN 1 608-GN ALTERNATOR WH-18 7 403-GN 9 450-YL 406-PU 601-GY J 87 403-GN 441-OR 6
L69 30

601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
NOTE F DIMMER SW LEVEL SYMBOL DESCRIPTION

L67
200-BK 2 200-BK 450-YL 200-BK 601-GY 200-BK 419-YL 447-PK 4 403-GN 3 ALTERNATOR

L65

113-OR
ABBREV COLOR

308-YL
SECONDARY GGG 87 30 3E-9318 L65
419-YL J 2 200-BK 405-GY 415-GN 10 415-GN 15 TEST
REAR FLOOD LAMP STEERING L61 START AID 1 J 600-BR L23 BLADE, SPADE, RING,
160-PU CONN 23 F G 201-BK 617-BR 87a 2

618-YL
200-BK 610-OR 406-PU 405-GY 405-GY 5 ENG OIL PRESS RD RED

200-BK
200-BK
200-BK
L8 L9 L73 3 OR SCREW TERMINAL

200-BK
9X-6775 3E-5184 EMS TEST SW L24 L103

118-GY

610-OR
L60
334-BU 751-GN 7

609-YL
615-YL
1 601-GY 413-BR 406-PU 406-PU 6 COOLANT TEMP 200-BK WH WHITE
L69 L69 200-BK 2 752-YL 9X-9628 601-GY RIGHT TAIL 447-PK 413-BR 3 413-BR 13 FUEL PRESS 200-BK 200-BK L4

570-BU
CIRCUIT CONNECTED OR ORANGE

609-YL
200-BK
200-BK
L46 L46 NOTE J L85 LAMP RELAY L4
E E

608-GN
3 921-WH 601-GY 201-BK 201-BK 5 20 UNUSED 200-BK 200-BK

668-BU
YL YELLOW
4 754-BU 601-GY 3E-6477 441-OR 439-YL 9 16 UNUSED 200-BK 200-BK 200-BK PK PINK
FUSE L85 CIRCUIT NOT CONNECTED
5 755-OR J 601-GY 618-YL 201-BK 467-WH 4 SHIFT FAULT 200-BK DEFROSTER BK BLACK
L48 6 202-BK BLOCK L58 RESISTOR 601-GY 617-BR L78 467-WH CONN 57 A M 417-GY 12 PRIM STEER 9X-9657
L8 1 L27 L10 ELECTRICAL CONNECTION GY GRAY
L9 9G-0747 3T-3123 L/S SYSTEM R/S SYSTEM

200-BK
200-BK
200-BK
200-BK
200-BK
7 758-GN J 2 600-BR 409-OR A429-YL 5 113-OR 1 + BATTERY TO MACHINE STRUCTURE PU PURPLE

L27
G 10A KEY SW 105-RD 538-OR 410-WH 6 410-WH 10 ALARM AIR PRESS AIR PRESS BLOWER
F L44 J HORN L81 L98 M M M M GAUGE 9X-0343 BR BROWN
MASTER GAUGE

200-BK
200-BK
K INTERNAL ELECTRICAL

200-BK
604-OR

606-GY

STARTING AND CHARGING 900-PU 114-RD 539-BU 201-BK 9 201-BK 17 AWD (NOTE G)
617-BR

200-BK

1 10A GN GREEN
605-YL

618-YL

CONN 7 J SEC STEER ACTION 1W-3306 1W-3306 CONNECTION TO SURFACE

DIAGNOSTIC CONNECTOR 2 901-WH 134-RD 609-YL 403-GN 419-YL 2 419-YL 19 BRAKE ON A506-OR 1 RD/BK MOTOR

617-BR

617-BR
200-BK

200-BK
10A BU BLUE

CONN 22

L44
LAMP OF COMPONENT

601-GY
3 902-BR 200-BK 201-BK 404-YL 3 404-YL 7 HYD TEMP 200-BK 2 BK

619-GN

200-BK
10A

611-PU
L1 J J
12

13
10
11
15
18
19
20
14

L29
16
17

BACKUP 4 903-GY 10A TURN SIGNALS 173-RD 537-GN 85 86 HEADLAMP/ L29 415-GN 408-WH 1 408-WH 8 BK AIR PRESS 9W-2111 LAMP LAMP L22 CONNECTOR
5

3
7
2
9
1
8
6
4
AAA TAIL SW NOTE H 7N-5876 7N-5876

1 4
ALARM CCC 6 G865-BU 10A 617-BR 409-OR 7 409-OR 9 NEUTRAL

609-YL
AAA J STOP LAMPS L58 L73 87 30 LEFT TAIL 3E-9317 NOTE H NOTE H ATCH WIRE, CABLE &

668-BU
L82
3T-1815 321-BR 5 G460-GN 130-RD 439-YL 467-WH 8 201-BK 2 GROUND CONN 63

310-PU
10A
304-WH
COMPONENT

311-WH
L28
302-OR

306-GN
LAMP RELAY
109-RD
101-RD

CONN 16 J SHUTDOWN CNTRL

112-PU
203-BK
207-BK

BLADE
105-RD

7
J
308-YL

5
8
4
3
2
1
6
200-BK 7 F769-BU 10A 113-OR 417-GY 4 201-BK 14 UNUSED A506-OR
Y 3E-6477

610-OR
1 C'SHIFT PIN HAZARD FLOOD

556-WH
CIRCUIT GROUPING

118-GY
2

311-WH

617-BR
M

617-BR

L16
J 10A M A CC

403-GN
CCC

101-RD

601-GY
SPARE

615-YL
609-YL
A M 201-BK 18 UNUSED A506-OR

200-BK
L101 L#
CONN 21 EEEE G 410-WH 200-BK 2 411-PK 11 LAMP TURN INDICATOR INDICATOR A503-PK 609-YL 1 609-YL LAMP DESIGNATION

311-WH

304-WH
1 INDICATOR M M M M LAMP M M LAMP

306-GN
L34

109-RD

101-RD
L75

112-PU

310-PU
CCC K 9X-6775 T

308-YL
1 202-BK 115-RD 201-BK 617-BR 3 K 2 200-BK

411-PK
201-BK
B J 2 L14

5
6

2
3
TURN LAMP HEADLAMP LEFT TAIL ELECTRONIC MONITORING LAMP 7N-5876 7N-5876

101-RD-10
RD 605-YL 2 710-GN 102-RD 102-RD 408-WH 539-BU 4 570-BU GN

609-YL
1 L1 L77 3 J L6 RESISTOR 1
7X-6066 & RIGHT LAMP TURN SIGNAL SW J J DIMMER SYSTEM (EMS) 9X-7801 7N-5876 NOTE H NOTE H

539-BU

570-BU
200-BK

108-RD
BK 2 200-BK 102-RD 201-BK 538-OR 1

538-OR
710-GN AND 200-BK 2 GN

200-BK

200-BK
200-BK
439-YL
TAIL/POS. BREAKER L83 L84 SWITCH 4 NOTE H 7T-4003 L14 BLADE

610-OR
107-RD
308-YL 202-BK ARE 9G-5589 605-YL 115-RD J 5 449-BU 449-BU 5 449-BU
BREAKER 3T-2662 103-5678 L99 L23 CUSHION

200-BK
200-BK

TWISTED PAIR 606-GY 115-RD CONN 45 E975-PU 450-YL 6 450-YL

200-BK
200-BK
3T-2662 6 A T T SOLENOIDS
C A NOTE D 101-RD J J A 200-BK E975-PU 7
L72

101-RD-14
CCC 10 107-RD J 3 310-PU 201-BK 1 570-BU 570-BU 1 GN 2A-6469
CONN 56

A513-PK
L97

512-GN

113-OR
STOP/TAIL RD 1 604-OR 311-WH 9 202-BK 539-BU 308-YL 2 201-BK 2 200-BK 200-BK 2 GN

511-BR
592-BU
S TURN W/L

200-BK
C

15A
LAMP 538-OR L80 L96 J IDENT PART NO. CHG LOC LEVEL NOTE

101-RD
T WH 3 617-BR 308-YL 308-YL 1 105-RD HAZARD C2 200-BK 4 415-GN 201-BK

15A
130-3452 FLOOD/TAIL L29 L17
G BK 2 200-BK 308-YL L56 2 308-YL GROUND 31 200-BK 609-YL 7 403-GN 201-BK CONN 62
L56 L45 L45 FRONT LAMP

L68

CONN 35
Y 200-BK 200-BK 310-PU 5 310-PU N/C 30B 609-YL 200-BK 5 615-YL 201-BK 201-BK 617-BR 617-BR
200-BK L68 308-YL L62 3 306-GN HHH TURN SW. 49A 537-GN L83 615-YL FLOOD 85 86 RELAY 1 200-BK 201-BK 200-BK 617-BR 617-BR L103 HARNESS AS.
L82 J M E975-PU

160-PU
334-BU
CONN 34
AA LAMPS 3E-6477 A 115-9367 05 (PLATFORM) 120

L79
L78
1
2

L15

L3
604-OR

TRANS LAMP
606-GY

306-GN 306-GN 4 326-RD + BATTERY 49 173-RD 6 169-PK 201-BK 617-BR 617-BR

200-BK
200-BK

200-BK
200-BK
1
2
618-YL

AIH

200-BK
202-BK
114-0419 87 30 (ATCH) C 116-2868 00 (R FRAME-ENGINE) 200

102-RD 1
101-RD 2
6 795-YL J J 2 201-BK 7N-5876 NOTE H 200-BK LAMP M
L57 L57 L38
Y J A CONN 44 M M E 115-9426 00 (R FRAME-TAIL) 201

101-RD
115-RD
L66
8 597-PU J

646-OR

618-YL
N L54 L54 FLASHER (TUV) 3 M 611-PU 7N-5876 F 137-1718 01 (R FRAME-TRANS) 202
2
1
112-PU Y START 7 522-WH 115-RD 3 609-YL HIGH BEAM INDICATOR 200-BK
8V-2514 7N-5876 NOTE H NOTE H G 137-1721 00 (XSMN CONSOLE) 170
GN 1 751-GN 112-PU-4 109-RD-4 RELAY 326-RD 115-RD J 5 1 608-GN A M 200-BK 200-BK
SOL 1 GN 2 921-WH L50 Y 105-RD 102-RD J 2 165-YL 611-PU 2 611-PU M 200-BK H 101-8161 02 (CAB-REAR) 182

618-YL
A513-PK
3E-7279

102-RD
L25
MAIN L77 6 L22 J 115-9430 08 (STEERING CONSOLE) 140

592-BU
127-0574 CONN 20 J

646-OR
304-WH 102-RD 4 334-BU 160-PU 1 160-PU 200-BK

617-BR
617-BR
617-BR
617-BR
618-YL
CONN 33
RELAY
109-RD-4

N REAR FLOOD LAMPS K 115-9432 01 (CAB-FRONT) 181

D 200-BK D

102-RD
109-RD-10 304-WH-10 102-RD 102-RD 5 373-GN

149-PU
105-RD
101-7740 Y Y L62 L62 CONN 19 L55 J L74 114-0417 CONN 55 L 115-9433 00 (SW PANEL) 180

610-OR
GN 1 752-YL 10A J BLADE FLOODS 149-PU

609-YL

608-GN
J M 115-9436 03 (GAUGE CONSOLE) 160
SOL 2 GN 2 921-WH CONN 15 101-RD 10A J REAR FLOODS 116-BR 609-YL 601-GY

373-GN
334-BU
127-0574 Y C C A A J 101-RD-10 10A BLADE CNTRL 169-PK 200-BK N 137-1120 02 (TRANSMISSION) 270
L50 L31 L6
N 10A J DIFF LOCK P 115-9439 01 (HEADLIGHTS-BAR) 100

L6
112-PU-4 112-PU-4 112-PU-4 112-PU-10 112-PU-8 1 101-RD-10 165-YL J
L74 J2 CONN 43
GN 1 754-BU CONN 2 112-PU-8 112-PU-10 A J 10A JJ XSMN CNTRL 126-PK 116-BR J 200-BK U 116-2306 01 (XSMN CONSOLE-SWITCHES) 171
Y Y C C A 3 K V 104-8588 02 (TRANS SPEED SENDER) 271

L61
SOL 3 GN 2 921-WH 109-RD-4 101-RD 101-RD-4 1 112-PU-8 112-PU-8 10A J SEC STEER 136-GN 200-BK J 3 200-BK-8
N F L76 CAB FLOOD X 124-1429 00 (CONDITIONER GP-B) 150 ATCH
127-0574 109-RD 101-RD-4 101-RD-4 101-RD-4 101-RD-4 A J CONN 32 112-PU 10A J GAUGES 113-OR 200-BK 4 200-BK 200-BK 615-YL

L61
N Y 60A LAMP X 124-1429 00 (HEATER GP) 154 ATCH

L21
1 751-GN 101-RD 3 102-RD J 15A J AIR CNDTR 124-GN 601-GY J 608-GN 2 200-BK 200-BK 200-BK
GN 1 755-OR 9 921-WH ALTERNATOR PP CONN 14 105-RD 1 105-RD 20A AIR DRYER 122-BU-14 601-GY 1 200-BK 200-BK L21 9X-6775 Y 116-2867 00 (FUEL TANK) 230

101-RD-4
SOL 4 GN 2 921-WH 2 752-YL BREAKER CONN 18 L75 200-BK L64 AA 115-9446 00 (HEADLAMP BREAKER) 141
Y ALT Y 80A
8 134-RD 610-OR 200-BK-14

GN-18
RD-18
9S-0174 STD FUSE FUSES K CC 101-8190 02 (BLADE FLOOD LAMP) 106 ATCH

BK-18
L46

200-BK
CONN 13

127-0574

YL-18
3 754-BU R + 109-RD-4 AAA 5 130-RD 609-YL

308-YL
403-GN 200-BK J 2 J 201-BK
N 4 755-OR ALTERNATOR 9S-4693 ATCH 326-RD STOP 9 126-PK BLOCK 3K-8782 (10A) 165-YL 403-GN 202-BK 202-BK FRONT 200-BK 615-YL CAB FLOOD EE 112-0829 02 (2-WAY RADIO CONVERTER) 208 ATCH
9G-0747 8M-8948 (15A) 3 L84 A FRAME LAMP HH 101-8193 03 (REAR FLOOD LMP-FUEL TNK) 206 ATCH

F775-BU
GN 1 900-PU 5 900-PU 100-5047 50A STD Y 7 136-GN J 556-WH 200-BK-8 200-BK 200-BK
Y

101-RD-10
L67 L76

112-PU-10

L64
SOL 5 L67 8M-0456 (20A) 9X-6775 KK 4E-8715 00 (CONDENSER JUMPER) 155

169-PK
GN 2 921-WH 10 921-WH 6 113-OR 601-GY 556-WH 615-YL

165-YL

570-BU
101-RD-4

165-YL
3E-7577 75A ATCH L55 L55 UUU UUU AIH PP 115-4599 02 (EEC SOCKET) 231

202-BK

202-BK
127-0574

202-BK
200-BK
6 901-WH 200-BK-4 AAA 4 124-GN 200-BK DIFFERENTIAL TIMER 615-YL
N AAA 200-BK-10 GND CAB FLOOD L96 AAA 116-2869 01 (ENGINE) 220

L21
7 902-BR 2 122-BU-14 112-PU 1 15A UNLOCK SW 4Y-7948 615-YL
GN 901-WH 8 903-GY 301-BU-10 START L56 L56 10 107-RD 118-GY 2 LAMP BREAKER 165-YL L21 615-YL CCC 115-9448 01 (RADIATOR GRILL) 203
1 123-5862
3T-2662 FFF 101-8181 03 (CAB FUSE PANEL) 183
311-WH

SOL 6 GN 2 921-WH PP 301-BU-10 L37 CONN 31 J 200-BK

SHUTDOWN L37 L71 L71 GGG 101-8185 01 (SECONDARY STEERING) 260
L51

L40
L48

L69

127-0574 101-RD 113-OR 200-BK

L9

N SOLENOID L25 CONN 54 A K K HHH 101-8196 01 (LEFT TAIL LAMP BREAKER) 142

L33
200-BK AAA 200-BK 200-BK 200-BK
GN 902-BR PP STARTER 304-WH-10 BUSS BAR 8C-3663 L39 L39 113-OR 592-BU 101-RD-14 200-BK 200-BK-10 101-RD-14 615-YL CAB FLOOD JJJ 101-8192 01 (REAR FLOOD LAMP) 205 ATCH
1 L33 7 L104 L104
SOL 7 GN 2 921-WH 758-GN SOCKET AS. 106-8555 G S 124-5814 C L33 615-YL 1 113-OR 113-OR 113-OR 200-BK LAMP NNN -------- (CUSTOMER ROADING HARN.) 145 NOTE F
9R-7941 C L3 9X-6775 PPP 115-9450 00 (LEFT SIDE TURN LAMP) 273 ATCH
127-0574 202-BK WWW 101-RD-4 1 A429-YL 2 A513-PK A513-PK A513-PK
N AAA MTR BAT RD-00 XXX L67 L28 L101 L101 RRR 115-9451 00 (RIGHT SIDE TURN LAMP) 272 ATCH
2 200-BK 439-YL 439-YL 3 615-YL

200-BK
GN 1 903-GY 301-BU WWW L71 113-OR 113-OR L28 L27 4 K UUU 115-9453 00 (CAB FLOOD LAMP BKR) 275 ATCH
KKK

L102
AAA AAA WW CAB FLOOD EEEE 136-3153 00 (TOS) 202
SOL 8 GN 2 921-WH ART 113-OR 113-OR 601-GY 5 200-BK 615-YL
301-BU 1 RESISTOR MOTOR L44 L44 L33 101-RD 6 200-BK-10 200-BK 200-BK LAMP T 101-8188 02 (BLADE CUSHION) 120 ATCH
127-0574 SENDER L44
RD-0

9X-6775

L25
6T-2217
RD-00

302-OR 2 3E-5383 126-PK A K 601-GY 200-BK

L25 L102

101-RD
101-RD-10
101-RD-4
L25

112-PU-10
152-BU 3 507-WH 200-BK-8 200-BK
101-RD-4

TRANSMISSION SOLENOIDS (8) 207-BK AAA L38 L38 L38 306-GN L34 576-PK 1 578-BU WIRE AS.
L26 L26 L18 LO LL 8Y-9603 01 (START MTR TO ENGINE) 221
127-0574 200-BK 126-PK 126-PK 795-YL 577-PU 2 506-PU K
200-BK

DISCONNECT SW UU L70 200-BK L7 L7 L7 L71 L38 L71 L71 575-YL 4 152-BU 200-BK-8 200-BK BK GND HI NN 8X-9440 04 (HORN SWITCH) 143
L36 326-RD L43 L100 MOTOR
7N-0718 TTT 117-4469 00 (AIH RELAY TO AIH) 216

L99
AAA L36 308-YL 507-WH 6 576-PK 4
INCHING PEDAL L21
200-BK

L36
L72 K T° XXX 117-4472 00 (AIH RELAY TO BUS BAR) 215

OPERATOR STATION
CAB MMM
BK-00

F 203-BK 522-WH 578-BU 7 577-PU MMM FRONT 501-GN 1 GN

C LLL C

601-GY
(TRANSMISSION) BK-18 RD-00 BK-00 KK A 597-PU 506-PU 5 575-YL FRAME GROUND 118-GY 3 GY B+
1 758-GN PARK
200-BK-4

PRESSURE SW L72 L19 L19

E975-PU
RR

449-BU
L37
BK-18 2 202-BK PP 200-BK-10 1 122-BU-14 307-OR 592-BU 8 101-RD 500-BR 4 BR
111-7088 L37 L43 L31 L71 L71
BK-00

TT RR AAA L43 CABLE AS.

L35
LL BK 2 521-YL A513-PK 9 502-OR 2 OR
BK-00

CONN 1 POS NEG 12V BATTERY AAA 200-BK 200-BK BK 3 597-PU L35 101-RD-14 10 101-RD-14 L7 L7 RR 5T-1553 01 (NEG BAT/DISCONNECT SW) 211
9X-9721 (1000 CCA) VVV K TT 115-8547 00 (NEG BAT TO POS BAT) 213

L64
V V F 4 200-BK-14 A K L101 L19

201-BK
L100

404-YL
Y L64 CONN 53 FRONT UPPER UU 061-7661 03 (START MTR TO FRAME GND) 214
V+ OR-18 A G865-BU A G865-BU ENGINE 112-PU-10
200-BK
200-BK

BK-18 202-BK 202-BK LLL CONN 29 L7 WIPER VV 8X-9618 01 (GND-R FRAME TO F FRAME) 204
GROUND B B RD-00 601-GY K K
L7 CONN 52

200-BK
SIGNAL YL-18 C G460-GN C G460-GN UU L7 9X-3392 WW 115-5322 00 (STR MTR/SEC STEER REL) 261
REAR L71

10
TT KKK XX 101-8204 01 (STEERING MTR TO GND) 262

7
8
6
4
3
5
9
1
2
112-PU-10

1
5
4
6
3
2
7
TRANSMISSION V EEEE NEG POS FRAME A A L36 604-OR CONN 59 L L CONN 60 YY 115-5321 00 (STR RELAY TO STR MTR) 263
T° L40 L36 FFF K
OIL TEMP SW 1 202-BK 0 321-BR A KKK 111-0871 00 (POS BAT TO START MTR) 210
L52

A506-OR
A503-PK
136-2632 12V BATTERY VV HYD OIL L40 CONN 51 LLL 110-6399 01 (DISCONNECT SW TO GND) 212

507-WH

501-GN
502-OR
VV

108-RD
122-BU-14

101-RD

118-GY

601-GY
2 710-GN 439-YL

577-PU

506-PU

500-BR
152-BU

578-BU
576-PK

200-BK
2

575-YL
9X-9721 (1000 CCA) TEMP SW L71 L71 113-OR 1 WH-18 1 2 WH-18 MMM 1S-2342 02 (GND-F FRAME TO CAB) 105

112-PU
112-PU
112-PU
112-PU
112-PU
CONN 3 REAR FRAME 8N-2248 L39 HOLDER AS. 4K-5122 4 3 VVV 108-5747 00 (AIH TO ENG GND) 217
FRONT FRAME 4 WH-18 WH-18
L52 L40 L40 10A FUSE 3K-8782 WIRES THAT HAVE BATTERY VOLTAGE WWW 124-2802 00 (START MTR TO BUS BAR) 218

L43
LO 3
AAA ENGINE FFF A WHEN THE KEY SWITCH IS OFF.
OIL SW L L93 L94 GND CENTERSHIFT

200-BK
201-BK 2 BK-18 10A UPPER WIPER/WASHER 118-GY 118-GY 200-BK BK HI
L35 L34 892-BR & 893-GN MOTOR

F775-BU
9X-0378 INDICATOR SW WIRES THAT HAVE BATTERY VOLTAGE

L26
L27
710-GN AND 405-GY 1 BK-18 118-GY

307-OR
L

105-RD
326-RD
134-RD

570-BU
FFF

169-PK

CONN 41
ARE TWISTED PAIR

308-YL

165-YL

CONN 47
V 202-BK ARE U U SHIFT 10A LOWER WIPER/WASHER 152-BU 576-PK 1 GN T° 3E-9367 WHEN THE KEY SWITCH IS ON.
REAR U NOTE D L18 B+

410-WH
BK-18 202-BK 152-BU 3 GY PARK 200-BK

373-GN
727-GN
1 TWISTED

202-BK

201-BK
LEVER

977-YL

462-YL
CONN 12 FRAME CONN 17 FFF L

E975-PU
L48 REAR WIPER L7 STARTING CIRCUIT.

467-WH
200-BK

601-GY
WH-18 2 710-GN RD 1 410-WH REAR WIPER/WASHER 119-PK 575-YL 4 BR

307-OR

306-GN
409-OR
PAIR 10A

200-BK

321-BR

449-BU
CONN 46

202-BK

126-PK
PANEL

977-YL

795-YL
A L89

G
L37

H
E
A
B
F

152-BU
9X-3392

152-BU
J
Y C

522-WH
310-PU BK 2 201-BK 577-PU 2 OR 200-BK

124-GN
NOTE D

601-GY
200-BK
LAMP L

521-YL
TRANS SPD SENDER E A G FFF GAUGE CIRCUIT.
L56
L56

6 308-YL A FRONT DEFROSTER 141-PK

1
2
3
4
5
6
7
8
9
L62 7N-5876 10A A
CONN 48

893-GN
104-6387

126-PK
202-BK
892-BR
CCC 7 310-PU 618-YL 9 LO U NOTE H ACTION ALARM A A FFF

200-BK
L

200-BK
7
2
3
4
6

8
5
1
STOP/TAIL S RD 1 604-OR 5 306-GN 617-BR 5 H 9G-9813 SERVICE 10A REAR DEFROSTER 151-GN FRONT LOWER ELECTRONIC MONITOR SYSTEM (EMS) CIRCUIT.
HI GND CONN 36 A L87 U TOOL WIPER

2
7
4
3
5
6
1

3
5
1
2
4
7
6
CONN 37
L55

L55

LAMP T WH 3 618-YL L50 1 403-GN 606-GY 4 BK 200-BK L L

L50 L68 L68 MOTOR L86 G G CONNECTOR 9X-3392 PANEL LAMP CIRCUIT.

5
4
3
1
2
H

L95
130-3452 G BK 2 200-BK 200-BK 4 608-GN 605-YL 6 101-RD 10A BEACON 144-RD THIS IS THE SCHEMATIC FOR THE 120H ES
L51 L51 L89 L7

L7
°T 9W-1951

F769-BU
L36
200-BK 3 447-PK 122-BU-14 8 122-BU-14 GN 1 504-YL U L MOTOR GRADER (146-0787 CHG 00)
200-BK 2 200-BK 556-WH 7 L36 PARK B+ GY 3 119-PK L41 DOME LAMP 108-RD WIPER/WASHER CIRCUIT.
200-BK 101-RD 10A

118-GY
118-GY
L88
311-WH

L88

L53
310-PU

200-BK 3 BR 4 503-BR CONDITIONER GP-B 8C9788 200-BK 601-GY COMPONENTS ARE SHOWN INSTALLED ON A FULLY
CCC 604-OR 2 604-OR OR 2 505-BU 601-GY 601-GY HEATER AND AIR CONDITIONER CIRCUIT. OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
CONN 11 A CC BLADE
AAA C
200-BK

TURN LAMP RD 1 606-GY 321-BR 1 321-BR 601-GY 601-GY AND XMSN SHIFTER IN NEUTRAL
L9 L41 L41 GROUND CIRCUIT.
200-BK
200-BK

FLOOD
200-BK

606-GY
BK 2 200-BK 105-RD 2 413-BR 200-BK 144-RD 1 609-YL

200-BK
7X-6066

618-YL
U U

601-GY
CUSHION

200-BK
601-GY

200-BK
326-RD 1 405-GY 200-BK L70 L86 601-GY 601-GY 467-WH 8 EMS OUT 2 200-BK LAMP
BLADE SW L L L L UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE
B ENGINE SPEED 9X-6775 TURN SIGNAL CIRCUIT. B
L54
L63

L54

3 201-BK 200-BK 200-BK 409-OR 7 NEUTRAL 603-PK ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAUGE
160-PU
334-BU
200-BK

SENSOR L61 L61 1 L42 9X-9629 L H

405-GY 4 441-OR 124-GN 202-BK 2 GROUND L2 3 502-OR B B

308-YL
L11

3E-7886 2 U 2 U 2 BEACON SW A CENTERSHIFT PAYLOAD MONITOR CIRCUIT.

727-GN 5 406-PU A 521-YL 169-PK 134-RD 126-PK 1 +BATTERY 601-GY
AAA L48 5 BLOWER SW 3 U 570-BU 3 U 727-GN 9X-9639 SOLENOID
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAUGE

L59
462-YL 6 450-YL 419-YL 1 BK-18 515-GY U 307-OR 3 START SW. 200-BK F775-BU 1 GN NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
C WH-18 2 450-YL 450-YL 8 L61 201-BK 2 BK-18 516-GN 4 6P-3236 462-YL E975-PU 4 A/M LAMP L 200-BK 2 GN 8T-8808 START AID CIRCUIT.
101-RD-4
200-BK-2

3
2
1

604-OR
130-RD
BK-18 1 202-BK 202-BK 7 202-BK 517-BU 308-YL 200-BK 795-YL 6 DUAL HP L L NOTE C: TRANSMISSION SHIFT LEVER LOGIC TABLE:
L94 TRANSMISSION CONTROL CIRCUIT.

200-BK
200-BK
406-PU PARK BRAKE 200-BK 321-BR 5 BU ALARM 501-GN
PRESS SW BLOWER KEY START SW SEC STER PW
BK-18
BK-18

413-BR 758-GN 20 INCH PEDAL

307-OR
200-BK

326-RD
105-RD
FUEL

308-YL
AIH COOLANT TEMP 441-OR CONN 10 3E-2033 RESISTOR 9X-9363 9G-7641 TEST SW 751-GN 10 SOLENOID 1 REAR L FRONT UPPER A RRR 24V OUTPUTS TO
SW
201-BK

RELAY SWITCH AAA C X 115-1967 DEFROST SW ALL DASHED LINES ARE ATTACHMENTS. GND

200-BK
9G-1950

200-BK
597-PU 752-YL 11 SOLENOID 2 500-BR WIPER SW 606-GY 3
3E-7279 8T-9793 AAA115-7103 L49 A X L 9X-9638 L59 SOLENOIDS S B D W/ SOL
L57

200-BK
522-WH 3 795-YL 3 754-BU 12 SOLENOID 3 506-PU 3T-6655 618-YL 2
L57

C RU 601-GY GEAR 1 2 3 4 5 6 7 8 T U HP AWD RET NEU

L5
201-BK 1 BK-18 795-YL 5 597-PU 126-PK 1 RD 5 515-GY 1 WH/RD-14 U CENTERSHIFT 755-OR 13 SOLENOID 4 200-BK 200-BK 1
160-PU-4 406-PU 2 RD-18 4 522-WH 200-BK 2 RD CONN 26b 1 200-BK 2 BK-14 601-GY 900-PU 14 SOLENOID 5 1 152-BU PARK
BK 1 201-BK MOTOR U L 2
TTT OFF C U PIN SW L95 N

L44
XXX BK 2 201-BK 413-BR 3 BU-18 1 105-RD 4 200-BK 601-GY 901-WH 15 SOLENOID 6 152-BU
AIR INTAKE 2 326-RD PARK BRAKE 2 PANEL LAMP ON S U 9X-9634
200-BK L44 902-BR 16 SOLENOID 7 3 L 584-YL CONN 61 1F
AAA THERMOSTAT ST B U U 2 L L

200-BK
200-BK
HEATER T° 8 SOLENOID 8D-1429 165-YL 903-GY 17 SOLENOID 8 4 A504-GN 2F

606-GY
200-BK
L H

618-YL
107-9652 COOLANT TEMP 7T-9074 SW BASE L87 3 U F775-BU U 2 L 5 L B B 3F
7 462-YL 200-BK F775-BU 308-YL 921-WH 18 SOLE RETN 577-PU
SENDER L60 L60 3E-5464 3 U 373-GN 6 4F

202-BK
7G-9730
L41

160-PU-4 201-BK 6 727-GN 614-PU U 710-GN 9 TOS + INP A507-YL

L41 T° 5F
VVV TTT AAA 4W-9972 H 373-GN G865-BU 19 +12 V
6F
441-OR 447-PK PK-18 200-BK 200-BK 200-BK U 200-BK G460-GN 21 TMP SW/DCn 584-YL RRR

202-BK
202-BK
202-BK
202-BK
202-BK
1 2 7F

C
A
B
200-BK 2 BK-18 FUEL LEVEL 1 603-PK 3 124-GN 277-BK 22 DIA CODE 1 151-GN P
°T SENDER U AUTOSHIFT SW. AIR INLET L90 L93 L L 8F

119-PK
L42
BEACON 5 521-YL 601-GY 278-BK 23 DIA CODE 2 576-PK 5
200-BK

Y 120-9588 L42 102-9861 HEATER SW. FRONT PW 1R

L41

128-6983 1 200-BK 200-BK 977-YL 24 A/M SWITCH L DEFROST SW 611-PU 4 BU-18

L41
L63

DEFROSTER 115-1969 L 2R
L51

BULB 4 522-WH U 449-BU 25 BUFF TOS 601-GY 9X-9638 FRONT LOWER 619-GN 6 RD-18
L51 200-BK 9X-9657 2 601-GY HEATER GP 8C-9787 977-YL 892-BR 26 CAT LINK - 200-BK 575-YL WIPER SW 618-YL 3 WH-18 3R
L52 9X-7849 U 1 L FRONT 4R
CONN 5 L52 202-BK 893-GN 27 CAT LINK + 578-BU 3T-6655 606-GY 1 YL-18
L 2 CLEARANCE 5R
HH Y BLOWER CONN 26a
L63

CONNECT CONN 6a TO E937-PU 28 RED NEUTR 200-BK 2 BK-18

608-GN 608-GN CONN 6b WHEN USING 9X-0343 E938-OR 29 FIRST 3 L 584-YL 6R

202-BK
202-BK
202-BK
202-BK
1 4
L52

L69 200-BK 2 200-BK CONN 6a STARTING/CHARGING H WITH 8C-9788 COND. GP., E939-WH 30 SECOND A503-PK
Y CONN 26a MATES TO CONN 26b RESISTOR L 5 REAR
ANALYZER WITHOUT A507-YL 1 BK/RD MOTOR E940-BU 31 THIRD L 119-PK 3E-7586 HI/LOW/POS/TURN LAMP
200-BK 1 START AID 200-BK 2 BK WITH 8C-9787 HEATER GP., 9G-1950 124-GN 1 E941-YL 32 FOURTH 6 A506-OR 119-PK CLEARANCE STD, 3E-7587 ATCH
L2
200-BK
200-BK

L11 200-BK 2 ATTACHMENT CONN 26a MATES TO CONN 26c 521-YL 2 BLOWER SW E942-GN 33 FIFTH SIDE NOTE D: THE FOLLOWING WIRES MUST BE TWISTED
5 6P-3236 L91 CONN 50 AT LEAST 1 TURN / 25 MILLIMETERS:
515-GY E943-BR 34 SIXTH L L TURN
311-WH 200-BK Y CONN 6b START AID AAA 516-GN 4 L91 E944-GY 35 SEVENTH Han L 584-YL 710-GN & 202-BK; 892-BR & 893-GN.
L63 H L H

119-PK
STOP/TAIL/TURN LAMP SOLENOID 3 B B NOTE E: POWER LEADS FOR 2-WAY FM COMMUNICATION
A -------- REAR FLOOD AAA 311-WH
310-PU
1
2
BK-18
BK-18 9G-4365
200-BK
795-YL
2
1
GN
GN RESISTOR
517-BU
BLOWER
E945-PU
E946-OR
36
37
EIGHTH
FORWARD
2
7
200-BK
A507-YL
141-PK 505-BU
SIDE TURN/CLEARANCE LAMP RADIO SHOULD BE SIZE 10 AWG A

E939-WH

E947-WH
LAMP

E938-OR

E942-GN

E946-OR
E944-GY
E937-PU

E943-BR
E945-PU
E940-BU

E948-BU
E941-YL

E949-YL
NOTE F CONN 4 7T-4003 9X-9363 117-8318 A NOTE F: ITEMS TO BE FURNISHED BY CUSTOMER
1
2

E947-WH 38 REVERSE 5 A504-GN

202-BK
9X-6775 DUAL HORSEPOWER X L20 L6 BRAKE AIR SW NOTE G: DISCONNECT HARNESS CCC AND MATE HARNESS NNN
JJJ HH E948-BU 39 PARK 3 603-PK 119-PK 408-WH 408-WH 1 BK-18
L49 L49 SOLENOID H L6 3E-2033 TO HARNESS E WHEN ADDING CUSTOMER SUPPLIED
BK
BK

608-GN 1 A504-GN 3 BAT + 1 307-OR CONN 40 G G E949-YL 40 (N) NEUT 6 119-PK 119-PK 201-BK 488-WH 2 BK-18
NNN 111-0570 L92 L L ROADING HARNESS.
200-BK 2 795-YL A507-YL 5 515-GY 1 WH/RD-14 GROUND 2 202-BK 1 202-BK G 1 505-BU 504-YL PW
STOP NOTE F AND G 200-BK CONN 26c 1 200-BK 2 BK-14 MOTOR G SOL 1 OUTPUT 3 306-GN G460-GN 2 G460-GN 8 503-BR L92 K NOTE H: TERMINAL 3T-3157
L90

24
23
22
21
20
19
18
17
16
15

10
11
12
13
14
RD 1 604-OR 504-YL 4 SW 2 INPUT 4 E949-YL 202-BK 3 277-BK TRANSMISSION 4 504-YL L REAR 511-BR A SOCKET 3T-3158

2
1
3
4
5
6
7
8
9
L49 AAA AIR CONDITIONER AAA L41 L20 X CONTROL L15 + BRAKE AIR SW SPRING 3T-3159
WH 2 618-YL 1 GN 119-PK 2 SW 1 INPUT 5 E948-BU 202-BK 4 278-BK 503-BR WIPER SW 512-GN - 488-WH 1 BK-18
L2 CLUTCH SOL PANEL LAMP TRANSMISSION 134-6553 3E-2033 BOOT 3T-3278

FORWARD
TAIL

THIRD
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
GROUND

NEUTRAL
SECOND
FOURTH
FIFTH
SIXTH
3T-6655

RED NEUT

REVERSE
PARK
FIRST

SEVENTH
EIGHTH
BR 3 606-GY 522-WH 1 2 GN 2 3 BK-18 1 513-OR 503-BR SOL 2 OUTPUT 6 306-GN 507-WH K 201-BK 2 BK-18
BK 4 200-BK T° 513-OR 2 101-1759 BK-18 2 597-PU 505-BU 8D-1429 DIRECTION & SPEED SW. 977-YL RIGHT SPEAKER CONTACT 6D-4161

UNUSED
COOLANT SW 1 8C-5337 NOTE J: USE 9X-9628 SWITCH WITH START AID ATTACHMENT.
603-PK 200-BK BASE NEUTRAL 6T-7695
8C-3569 3E-9169 DIODE AS. START A A
TURN A/C REFRIGERANT SW 614-PU 7G-9730 CAB SWITCH AND FUSE PANEL 130-RD

L18
114-5334 CONTROL L18 L5 604-OR STOP LAMP
NOTE A 117-9364 SW
L5 L5 2M-9346
SHIFT CONSOLE SHIFT CONSOLE
597-PU L20 L20 L20
E27228
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1