120H AND 135H MOTOR GRADER (NA VERSION) ELECTRICAL SYSTEM

©
1995 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR6930
May 1995
120H And 135H
Electrical System
3YK1-UP
4MK1-UP
6YN1-UP
7ZN1-UP
Motor Graders (NA Version)
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Distribution Circuits
Accessory Circuits
101 RD BATTERY
(
+
)
500 BR WIPER - FRONT
(
PARK
)
102 BU HEAD LAMP 501 GN WIPER - FRONT
(
LO
)
103 YL AUXILIARY CKT 502 OR WIPER - FRONT
(
HI
)
105 BR KEY SWITCH 503 BR WIPER - REAR
(
PARK
)
107 WH ENG SHUT - DOWN 504 YL WIPER - REAR
(
LO
)
108 BU AUXILIARY CKT 505 BU WIPER - REAR
(
HI
)
109 OR ALT OUT
(
+
)
TERM 506 PU WASHER - FRONT
112 PU MAIN POWER RELAY OUTPUT 507 WH WASHER - REAR
113 OR OPR MON PANEL B+ SWITCHED 508 PU RADIO SPEAKER - LEFT
114 GN WARNING HORN
FORWARD
509 WH RADIO SPEAKER - LEFT
(
COMMON
)
116 BR AUXILIARY CKT 511 BR RADIO SPEAKER - RIGHT
118 GY AUXILIARY CKT 512 GN RADIO SPEAKER - RIGHT
(
COMMON
)
119 PK AUXILIARY CKT 513 OR A/C COMPRESSOR/REFRIGERANT PRESS SW
122 BU AUXILIARY CKT 515 GY BLOWER MOTOR
(
HI
)
124 GN AIR CONDITIONER 516 GN BLOWER MOTOR
(
MEDIUM
)
126 PK TRANSMISSION CONTROL 517 BU BLOWER MOTOR
(
LO
)
130 GN AUXILIARY CKT 521 YL A/C SW TO REFRIGERANT SW
134 YL AUXILIARY CKT 522 WH A/C CLUTCH TO THERMOSTAT SW
136 GN SUPPL STEER 537 GN TURN SIGNAL SW TO FLASHER
141 PK AUXILIARY CKT 556 WH DIFFERENTIAL LOC
K
144 GN AUXILIARY CKT 570 BU BLADE CUSHION SOL
149 PU AUXILIARY CKT 575 YL WIPER - AUX
(
PARK
)
151 GN AUXILIARY CKT 576 PK WIPER - AUX
(
LO
)
152 BU AUXILIARY CKT 577 PU WIPER - AUX
(
HI
)
165 YL AUXILIARY CKT 578 BU WASHER - AUX
169 PK AUXILIARY CKT 584 YL WIPER SW JUMPER
173 YL AUXILIARY CKT 592 BU DC/DC CONVERTER POWER OUTPUT
176 OR AUXILIARY CKT 593 GN CONDENSER FAN RELAY TO MOTORS
Ground Circuits 597 PU A/C HI PRESS CUTOUT SW TO LOW PRESS SW
200 BK MAIN CHASSIS A503 PK FRONT DEFROSTER FAN
(
LO
)
201 BK OPR MONITOR PANEL A504 GN REAR DEFROSTER FAN
(
LO
)
202 BK TRANSMISSION CONTROL A506 OR FRONT DEFROSTER FAN
(
HI
)
203 BK CHASSIS DIAGNOSTIC A507 YL REAR DEFROSTER FAN
(
HI
)
207 BK STARTER DIAGNOSTIC A513 PK DC/DC CONVERTER MEMORY OUTPUT
276 BK TRANSMISSION CTRL IDENT CODE 0 Li
g
htin
g
Circuit
s
277 BK TRANSMISSION CTRL IDENT CODE 1 600 BR DASH LAMP BASIC
278 BK TRANSMISSION CTRL IDENT CODE 2 601 GY DASH LAMP HI
Basic Machine Circuits 603 PK ROTARY BEACON
301 BU STARTER NO.1 SOL 604 OR STOP LAMP
302 OR STARTER NO.1 RESISTOR TO DIAGNOSTIC 605 YL TURN LAMP - LEFT
304 WH STARTER RELAY NO.1 OUTPUT 606 GY TURN LAMP - RIGHT
306 GN STARTER RELAY COIL TO TRANS CONTROL 608 GN FLOOD LAMP - REA
R
307 OR KEY SW TO TRANS CONTROL 609 YL FLOOD LAMP - SIDE
308 YL MAIN POWER RELAY COIL 611 PU HEAD LAMP HI
310 PU START AID SW TO START AID SOL 614 PU PARK/TAIL/DASH LAMP
311 WH START AID SOL TO TEMP SW 619 GN HEAD LAMP LO
321 BR BACKUP ALARM LAMP TRAVEL ALARM 629 PK AUX HEAD LAMP
322 GY WARNING HORN
FORWARD
Control Circuits
326 PU KEY SW "C" TERM 710 GN TRANSMISSIONN SPD PICKUP SIGNAL
327 PK SHUTDOWN SOLENOID 727 GN SUPPL STER MOTOR RELAY
334 BU START AID SOL #2 728 BU SUPPL STER CONT SW
373 GN START AID SWITCH TO TIMER 751 GN TRANS SHIFT SOL NO.1 OR 3
Monitorin
g
Circuits 752 YL TRANS SHIFT SOL NO.2
403 GN ALTERNATOR
(
R
)
TERM 754 BU TRANS SHIFT SOL NO.3 OR 1
404 YL OPR MONITOR HYD OIL TEMP 755 OR TRANS SHIFT SOL NO.4 OR 5
405 GY OPR MONITOR OIL PRESS
(
LO SETTING
)
758 GN AWD CLUTCH SW
406 PU OPR MONITOR COOLANT TEMP 795 YL DUAL HP SOL
408 WH OPR MONITOR SYSTEM AIR PRESS B751 BU CENTERSHIFT LOCK SOL
409 OR OPR MONITOR NEUT F769 BU AWD TO INCH PEDAL SW
410 WH OPR MONITOR ACTION ALARM B899 OR AWD AGGRESSIVENESS CONT LEVER
411 PK OPR MONITOR ACTION LAMP 900 PU TRANS SHIFT SOL NO.5 OR 4
413 BR OPR MONITOR FUEL PRESS 901 WH TRANS SHIFT SOL NO.6
415 GN OPR MONITOR TEST SW 902 BR TRANS SHIFT SOL NO.7
417 GY PRIMARY STEER SW 903 GY TRANS SHIFT SOL NO.8
419 YL OPR MONITOR PARKING BRAKE 921 WH TRANS SOL NO.1 OR 3 RETURN
439 YL LAMP INDICATOR 977 YL CST AUTOSHIFT - AUTO/MANUAL SW 1
441 OR ENG COOLANT TEMP GAUGE E937 PU MG MESH CNTL - REDUNDANT NEUT
447 PK FUEL LEVEL GAUGE E938 OR MG MESH CNTL - FIRST GEA
R
449 BU SPDOM SENDER
(
SIGNAL NO. 1
)
E939 WH MG MESH CNTL - SECOND GEA
R
450 YL TACH SENDER
(
+) E940 BU MG MESH CNTL - THIRD GEA
R
462 YL SUPPL STER MOTOR INDICATOR E941 YL MG MESH CNTL - FOURTH GEA
R
467 WH SYSTEM FAULT
(
TRANSMISSION
)
E942 GN MG MESH CNTL - FIFTH GEA
R
485 YL OPR MONITOR PANEL AWD FAULT E943 BR MG MESH CNTL - SIXTH GEA
R
488 WH AIR SW TO AIR SW JUMPER E944 GY. MG MESH CNTL - SEVENTH GEAR
A429 YL ARTICULATION INDICATOR E945 PU MG MESH CNTL - EIGHTH GEA
R
B426 BU AWD HYD TEMP SENSOR E946 OR MG MESH CNTL - FORWARD DIRECT
E947 WH MG MESH CNTL - REVERSE DIRECT
E948 BU MG MESH CNTL - PAR
K
E949 YL MG MESH CNTL - NEUTRAL
E975 PU MESH LAMP
Component Location Chart
Machine
Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
C Alarm - Action B-8 12 Sender - Fuel Level A-13
1 Alarm - Backup E-15 13 Sender - Transmission Speed D-15
2 Alternator (35A standard) D-14 14 Sensor - Engine Speed B-14
3 Battery C-14 15 Solenoid - A/C Clutch A-13
4 Battery C-14 16 Solenoid - Centershift B-3
5 Breaker - Alternator (35A standard) D-13 17 Solenoid - Differential Unlock E-14
B Breaker - Headlamp D-10 18 Solenoid - Dual Horsepower A-13
B Breaker - Lightbar D-10 16 Solenoid - Forward Horn F-3
15 Breaker - Voltage Converter (25A) F-11 16 Solenoid - Park Brake B-12
6 Control - Supplement Steer E-13 19 Solenoid - Start Aid A-13
E Control - Transmission A-7 16 Solenoids - Blade Cushion E-2
C Control - Transmission Shifter A-8 13 Solenoids - Transmission Valve (8) D-15, E-15
7 Converter - Voltage F-10 15 Switch - A/C Refrigeration A-13
B Flasher E-10 19 Switch - Air Dryer F-14
B Fuses D-9 C Switch - Air Inlet Heater A-8
B Fuses E-10 C Switch - Beacon B-6
C Fuses (1 0A) B-6 C Switch - Beacon B-10
A Gauge - Articulation F-5 C Switch - Blower (A/C group) B-10
A Gauge - Engine Coolant Temperature F-5 C Switch - Blower (heater group) A-10
A Gauge - Fuel Level E-5 16 Switch - Brake Air Pressure A-2
A Gauge - Speedometer F-5 16 Switch - Brake Air Pressure A-2
A Gauge - System Air Pressure (left side) E-5 20 Switch - Centershift Indicator B-3
A Gauge - System Air Pressure E-5 C Switch - Centershift Pin B-9
(right side) C Switch - Cushion Blade B-9
A Gauge - Tachometer E-5 B Switch - Differential Unlock D-9
A Lamp - Action E-5 14 Switch - Disconnect C-14
A Meter - Service E-10 11 Switch - Engine Coolant Temp B-14
A Monitor - Electronic Monitoring System E-6 (monitor)
(EMS) 11 Switch - Engine Coolant Temp A-14
E Motor - Blower A-12 (start aid)
E Motor - Blower (A/C group) B-10 21 Switch - Engine Oil Pressure C-13
E Motor - Blower (heater group) A-10 B Switch - Flood Lamps D-8
E Motor - Blower/Defroster E-4 B Switch - Forward Horn E-9
8 Motor - Front Lower Washer F-6 C Switch - Front Defroster A-6
9 Motor - Front Lower Wiper C-4 C Switch - Front Lower Wiper A-5
8 Motor - Front Upper Washer F-6 C Switch - Front Upper Wiper B-5
D Motor - Front Upper Wiper D-4 18 Switch - Fuel Pressure B-13
8 Motor - Rear Washer F-5 B Switch - Head/Tail Lamp E-8
D Motor - Rear Wiper B-11 B Switch - Headlamp Dimmer D-9
5 Motor - Starter C-13 22 Switch - Hydraulic Oil Temperature C-11
8 Motor - Supplemental Steer F-13 13 Switch - Inching Pedal Pressure D-15
10 Motors - Condenser B-11 C Switch - Key Start B-9
10 Relay - Condenser C-11 B Switch - Light Bar Low Beam E-8
5 Relay - Main D-14 B Switch - Monitor (EMS) Test E-8
5 Relay - Start D-13 B Switch - Panel Lamp Dimmer E-9
15 Relay - Supplemental Steer F-13 16 Switch - Park Brake Pressure B-12
E Resistor - Blower Speed A-12 23 Switch - Primary Steer F-10
E Resistor - Blower Speed E-4 C Switch - Rear Defroster B-6
E Resistor - Blower Speed (A/C group) B-11 C Switch - Rear Wiper A-5
E Resistor - Blower Speed (heater group) A-11 B Switch - Start Aid/Monitor Test E-10
B Resistor - Panel Lamp Dimmer E-9 16 Switch - Stoplamp Pressure A-2
5 Resistor - Starter/Diagnostic C-14 B Switch - Supplemental Steer Test B-8
7 Sender - Articulation C-12 B Switch - Tail Lamp D-8
11 Sender - Engine Coolant Temp (gauge) A-14 B Switch - Turn Signal D-9
Machine locations are repeated for components located close together.
A = Operators compartment (dash).
B=Operators compartment (steering console).
C = Operators compartment (right side console).
D = Operators compartment (headliner).
E = Operators compartment (underseat).
HARNESS CONNECTOR LOCATION CHART
Connectors
Machine
Location
Harness And/O
r
Com
p
onents
S
c
h
ema
ti
c
Location
Connectors
Machine
Location
H
arness
A
n
d/
o
r
Components
S
c
h
ema
ti
c
Location
40 Contacts
G - 106-1319
A-7
A - 122-8882
B-7
Transmission Control G - 106-1319
24 Contacts
G - 106-1319
A-8
A - 122-8882
B-7
Transmission Shifter Sw G - 106-1319
B-1 04-6084
E-14
A - 122-8882
D-8
Diagnostic
Connector J -123-0957
20 Contacts
M - 123-0962
E-6
A - 122-8882
D-8
Monitor (EMS) J -123-0957
A - 122-8882
D-12
A - 122-8882
C-6
C - 126-2793 K-101-8162
A - 122-8882
D-10
A - 122-8882
E-6
J - 123-0957 M - 123-0962
A - 122-8882
E-9
A - 122-8882
B-8
J -123-0957 U - 123-6633
A - 122-8882
C-6
B-1 04-6084
E-13
K -101-8162 Y - 101-8172
10 Contacts
A - 122-8882
E-6
C - 126-2793
B-13
M - 123-0962 Y - 101-8172
A - 122-8882
E-6
C - 126-2793
F-12
M - 123-0962 Z -101-8185
A - 122-8882
B-9
F - 104-587 4
E-12
U - 123-6633 G - 106-1319
F - 1 04-587 4
E-15
F - 104-587 4
E-12
N - 9U-9313 G - 106-1319
K -101-8162
C-5
K - 101-8162
C-5
L-101-8164 L-101-8164
A - 122-8882
E-12
D -101-8171
F-14
C - 126-2793 E -101-8169
A - 122-8882
F-12
6 Contacts A - 122-8882
F-10
C - 126-2793 Voltage Converter
G - 106-1319
B-7
A - 122-8882
F-3
9 Contacts
Service Tool Connector P -101-8205
M - 123-0962
F-6
5 Contacts A - 122-8882
B-9
Gauge Cluster U - 123-6633
A - 122-8882
B-12
U - 123-6633
A-11
E -101-8169 AC/Heater Unit
B-1 04-6084
B-13
G - 106-1319
A-8
C - 126-2793 G - 106-1319
B-1 04-6084
B-13
A - 122-8882
B-3
8 Contacts
C - 126-2793 Centershift Switch
K -101-8162
F-11
A - 122-8882
C-4
Radio Front Lower Wiper
H -101-8161
A-6
4 Contacts
H -101-8161
B-11
L -101-8164 Rear Wiper
K - 101-8162
D-4
Front Upper Wiper
J -123-0957
D-8
AIH Timer
Machine locations are repeated for connectors located close together.
C = Operator's compartment (Right side console).
* = Connector is located at the component.
7 Contacts
Related Electrical Service Manuals
Form Number
Alternator (6N-9294):
Consist No. 3T -6352 SENR4978
Consist No. 7N-9720 SENR2082
Consist No. 9G-4574 SENR4130
Electronic Monitoring System SENR2945
Electronic Transmission Shift Control SENR6982
Starting And Charging Systems SENR2947
Starting Motor: (1 06-8558)
Consist No.1 06-8557 SENR3859
Consist No. 106-8559 SENR3581
Title
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
45.0 kPa Max 5.0 kPa MIN
2M-9346 Stop Lamp Pressure (6.5 psi Max) (0.5 psi MIN) Normally Open
640 kPa MAX 530 ± 40 kPa
3E-2033
Brake/Park Brake Air Pressure
(92.0 psi MAX) (77.0 ± 6.0 psi) Normally Open
37.8 ± 2.8°C 26.7°C MIN
8C-3569 Engine Coolant Temp (start aid) (100 ± 5OF) (80.0°F MIN) Normally Closed
107.2 ± 2.8°C 93°C MIN
8T-9793 Engine Coolant Temp (EMS) (225 ± 5OF) (199.4°F MIN) Normally Closed
1206 kPa MAX 700 ± 50 kPa
8T-8640 Primary Steering Pressure (175 psi MAX) (100 ± 7 psi) Normally Closed
82.22 ± 2. 78°C 74°C Min
8T-9705 Hydraulic Oil Temperature (180 ± 9°F) (165°F MIN) Normally Closed
93.0 ± 20.8 kPa 69 ± 21 kPa
9W-3187 Fuel Pressure (13.5 ± 3.0 psi) (10 ± 3psi) Normally Closed
62.0 kPa MAX 38 ± 20 kPa
9X-0378 Engine Oil Pressure (9.0 psi MAX) (5.5 ± 3.0 psi) Normally Open
75.0 kPa MAX 50.0 kPa MIN
111-7088 Inching Pedal Pressure (10.9 psi MAX) (7.3 psi MIN) Normally Open
275 to 1750 kPa¹ -
114-5334 Refrigerant Pressure (A/C) (40 to 255 psi) - Normally Open²
¹ A hysteresis band exists: with increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed
condition can be maintained down to 170 kpa (25psi).
² Contact postion at the contacts of the harness connector.
Resistor, Sender and Solenoid Specifications
Component Description Part No. Resistance (Ohms)¹
Resistor - Starter/Diagnostic Conn 6T-2217 150.0 ± 7.5
Overall 2.00 ± .10
Resistor - Blower Speed 9G-1950 Tap 1.00 ± .05
Solenoid - Centershift 8T-8808 34.3 ± 1.7
Solenoid - Differential Unlock 7T-9073 33.6 ± 1.0
Solenoid - Dual Horsepower 111-0570 31.1 ± 2.4
Solenoid - Forward Horn 7T-9074 55.17 ± 5.77
Solenoid - Start Aid 9G-4365 6
Solenoid - Transmission 9W-2739 31 ± 3
¹At room temperature.
A
1
2
3
4
5
6
7
8
9
10
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
7
A
1
2
3
4
5
6
7
8
9
10
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
7
Machine Harness Connector and Component Locations
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
REED SWITCH - A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
SENDER - A component that is used with a temperature or pressure gauge. The sender
measures the temperature or pressure. Its resistance changes to give an indication to the
gauge of the temperature or pressure.
RELAY (Magnetic Switch) - A relay is an electrical component that is activated by electricity.
It has a coil that makes an electromagnet when current flows through it. The electromagnet
can open or close the switch part of the relay.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
SOLENOID - A solenoid is an electrical component that is activated by electricity. It has a coil
that makes an electromagnet when current flows through it. The electromagnet can open or
close a valve or move a piece of metal that can do work.
Harness And Wire Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plug and receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
L68
L37
L16
L7
L40
L43
L44
L27
L65
L75
L35
L32
L23
L25
L71
L7
L32
L10
L76
L13
L11
L62
4
3
278-BK
278-BK
6
7
4
G
SHIFT CONSOLE
5
4
3
921-WH
903-GY
902-BR
901-WH
900-PU
755-OR
754-BU
752-YL
751-GN
2
1
5
3
2
DIA CODE 2
DIA CODE 1
ARE TWISTED PAIR
1
20 INCH PEDAL
202-BK
126-PK
892-BR
202-BK
276-BK
277-BK
G
L44L44
977-YL
7
6
893-GN
RED NEUT
202-BK
202-BK
202-BK
J
202-BK
14
13
12
11
10
9
8
7
6
5
4
3
202-BK
2
1
15
16
17
18
19
20
21
22
23
24
TRANSMISSION DIRECTION
8C-5340
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
FIRST
GROUND
EIGHTH
SECOND
THIRD
FOURTH
FIFTH
SIXTH
SEVENTH
E943-BR
FORWARD
REVERSE
PARK
NEUTRAL
E937-PU
202-BK
E938-OR
E939-WH
E940-BU
E941-YL
E942-GN
E944-GY
E945-PU
E946-OR
E947-WH
E948-BU
E949-YL
202-BK
202-BK
900-PU
202-BK
710-GN
903-GY
902-BR
H
755-OR
754-BU
G
921-WH
752-YL
901-WH
751-GN
TRANSMISSION CONTROL
G
F769-BU
202-BK
2
L44
L44
1
L44
977-YL
758-GN
G
F
F769-BU
F769-BU
758-GN
E975-PU
C
277-BK
276-BK
E949-YL
E948-BU
E947-WH
E946-OR
DIA CODE 0
202-BK
+BATTERY
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
18
17
16
15
14
13
12
11
10
8
5
4
3
1
2
7
E945-PU
467-WH
E944-GY
L44
795-YL
E943-BR
321-BR
E942-GN
306-GN
E941-YL
307-OR
E940-BU
126-PK
E939-WH
202-BK
E938-OR
409-OR
G
202-BK
PARK
REVERSE
FORWARD
G
EIGHTH
SEVENTH
SIXTH
FIFTH
FOURTH
THIRD
SECOND
FIRST
RED NEUTR
CAT LINK +
(N) NEUT
BUFF TOS
A/M SWITCH
GROUND
NEUTRAL
SERVICE
TOOL
CONNECTOR
9W-1951
B
A
TOS + INP9
E937-PU
893-GN
892-BR
449-BU
E
710-GN
D
G
G
19
202-BK
G
202-BK
202-BK
A/M LAMP
SOLE RETN
SOLENOID 8
SOLENOID 7
SOLENOID 6
202-BK
SOLENOID 5
SOLENOID 4
SOLENOID 3
SOLENOID 2
SOLENOID 1
EMS OUT
DUAL HP 6
CAT LINK -
BU ALARM
START REL.
START SW.
106-4458
AND SPEED SHIFTER SW.
TRANS SPD SENDER
104-6387
710-GN
202-BK
PK-18
BR-18
BK-18
BU-18
PU-18
OR-18
GN-18
STEER SW
ALTERNATOR
WH-18
YL-18
GROUND
1
2
9
6
8
4
5
3
7
+ BATTERY
KEY SW
GN-18
GY-18
MOTOR RELAY
OPR PANEL
SUPPLEMENTAL
STEERING CONTROL
3E-5184
RD-0 RD-0
136-GN
308-YL
200-BK
200-BK
728-BU
403-GN
727-GN
417-GY
1
2
921-WH
903-GY
921-WH
902-BR
921-WH
901-WH
921-WH
900-PU
921-WH
755-OR
921-WH
754-BU
921-WH
752-YL
921-WH
751-GN
1
2
2
1
SOL 4
SOL 8
SOL 7
SOL 3
1
2
2
1
1
2
2
1
SOL 2
SOL 6
SOL 5
SOL 1
1
2
2
1
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
RD-0
Z
BK-0
TWISTED PAIR
WW
RD-00
BK-18
WH-18
V
WW
1
2
Z
Z
XX
XX
YY
YY
WW
V
N
N
N
N
N
N
N
N
N
RD-0
1/0 ATCH
VV
VV
8
7
6
9
5
4
3
2
10
1
903-GY
902-BR
901-WH
921-WH
900-PU
755-OR
754-BU
752-YL
921-WH
751-GN
INCHING PEDAL
PRESSURE SW
(TRANSMISSION)
111-7088
BK
BK
F
202-BK
758-GN
758-GN
202-BK
L46
2
1
7
5
L46
L46
6
4
3
2
1
710-GN AND 202-BK ARE TWISTED PAIR
F
1
2
202-BK
710-GN
F
F
F
1
2
3
2
1
2
1
7
8
6
9
8
7
6
1
6
5
5
4
2
3
4
3
2
4
1
6
5
2
3
1
4
L71
L71 L71
L71
5
9
8
1
2
2
7
6
5
4
3
2
1
1
7
6
5
1
4
3
L66
101-RD-14
L35
L65
10
A429-YL
L30
L35
L65
L12
9
8
5
601-GY
601-GY
112-PU-10
101-RD-4
165-YL
169-PK
597-PU
522-WH
308-YL
202-BK
326-PU
201-BK
795-YL
306-GN
105-BR
467-WH
409-OR
24 TO 12 VOLT
CONVERTER
119-1733
592-BU
113-OR
113-OR
113-OR
439-YL
105-BR
A513-PK
102-BU
107-WH
1
605-YL
606-GY
310-PU
608-GN
614-PU
605-YL
605-YL
419-YL
608-YL
405-GY
403-GN
413-BR
447-PK
419-YL
201-BK
126-PK
PARK BRAKE
PRESS SW
3E-2033
PARK BRAKE
SOLENOID
7T-9074
GN
GN
BK-18
200-BK
BK-18
592-BU
200-BK
A513-PK
102-BU
+12V MEMORY
+24V IN
200-BK
113-OR+ BATTERY
GROUND
GROUND (RADIO)
+12V RADIO
373-GN
334-BU
608-GN
609-YL
6
7
6
4
592-BU
201-BK
441-OR
2
1
406-PU
450-YL
450-YL
3
A513-PK
506-PU
578-BU
507-WH
575-YL
577-PU
576-PK
152-BU
101-RD
L71
5
4
3
2
1
7
601-GY
605-YL
606-GY
611-PU
619-GN
6
614-PU
5
3
169-PK
629-PK
415-GN
126-PK
307-OR
321-BR
202-BK
201-BK
4
7
2
406-PU
606-GY
441-OR
201-BK
611-PU
447-PK
413-BR
619-GN
608-GN
310-PU
202-BK
570-BU
405-GY
611-PU
619-GN
605-YL
606-GY
CONN B
CONN A
WITH SUPPLEMENTAL
STEERING SWITCH CONN'S
A, B
417-GY
B751-BU
BRAKE AIR SW
3E-2033
BK-18 1
2
570-BU
417-GY
BRAKE AIR SW
3E-2033
306-GN
795-YL
449-BU
BK-18
L63
L25
L61
L61
L61
L72
L38
L72
L72
L72
L72
L72
608-GN
L37
A
404-YL
201-BK
8T-9705
HYD OIL
TEMP SW
201-BK
L45
522-WH
L45
597-PU
T°
795-YL
112-PU-8
112-PU-10
101-RD-4
306-GN
101-RD-4
A
112-PU-10
112-PU-8
601-GY
326-PU
310-PU
3
4
1
2
200-BK
A429-YL
728-BU
136-GN
E975-PU
403-GN
L65
609-YL
200-BK-14
200-BK
L64
310-PU
L64
629-PK
L65
L76L76
200-BK
200-BK
608-GN
9
L76
L65
439-YL
321-BR
604-OR
L35
113-OR
L35
L45
L35
L35
A
556-WH
L66
L63
L25
L38
L7
L37
L37
L37
L36
L36
L37
L36
L61
L61
L61
3
L45
L37
L12
L12
L66
L66
L32 L32
L30
L30
L30
L28
L6
L29
L29
L40
L27
L27
L27
L27
L11
L11
L63
L25
L38
L7
L36
L7
L25
L34
L35
L35
L36
L36
L38
5
L38
L26
L26
L27
3
BK-18
7
L26
122-BU-14
L27
L28
2
L28
L39L39
126-PK
2
2
200-BK
L76
1
L39
165-YL
403-GN
L40
L75
334-BU
160-PU
L75
L75
160-PU
334-BU
L75
556-WH
L75
L75
308-YL
L43
728-BU
200-BK
L43
3
2
1
L43
PRIMARY
STEER SW
8T-8640
10
105-BR
202-BK
606-GY 201-BK
4
L43
308-YL
BU
RD
BK
6
8
L6
L6
L11
AA
L12
L32
202-BK
200-BK
1
L32
126-PK
L21
126-PK
L21
L21L21
L10
L63
L63
L5
L5
L23
L23
L21
L21
L21
L18
L18
L18
L18
L18
L7
L7
L7
2
L7
L7
L6
L11
L11
L12
L10
L10
L10
L10
L10
L7
L7
L6
L6
488-WH
L5
1
4
1
A
A
449-BU
E975-PU
201-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
556-WH
L72
200-BK
200-BK
200-BK
200-BK
- +
200-BK
200-BK
200-BK
-
417-GY
+- +
REAR
WASHER
7T-8891FRONT UPPER
WASHER
7T-8891
507-WH
506-PU
578-BU
FRONT LOWER
WASHER
7T-8891
507-WH
200-BK
FRONT
FRAME
202-BK
200-BK
604-OR
130-GN
GND
PARK
B+
1
200-BK
200-BK
4
3
2
2
1
3
4
5
200-BK
200-BK
606-GY
605-YL
611-PU
619-GN
114-GN
322-GY
FRONT LOWER
WIPER
9X-3392
576-PK
152-BU
575-YL
577-PU
MOTOR
MOTOR
629-PK
609-YL
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
T°
BK
113-OR
1
2
3
4
WH-18
MOTOR
200-BK
101-RD
OPERATOR STATION
BK-18
404-YL
201-BK
L71
A
200-BK
609-YL 609-YL
609-YL
200-BK
200-BK
200-BK
727-GN
462-YL
FORWARD
HORN
SOLENOID
7T-9074
A
A
A
A
A
A
619-GN
611-PU
606-GY
605-YL
605-YL
606-GY
611-PU
619-GN
321-BR
604-OR
521-YL
200-BK-14
597-PU
521-YL
122-BU-14
308-YL
200-BK
326-PU
307-OR
601-GY
105-BR
169-PK
570-BU
467-WH
409-OR
A429-YL
160-PU
404-YL
614-PU
410-WH
201-BK
201-BK
201-BK
200-BK
439-YL
113-OR
200-BK
415-GN
L30
L28
L64
200-BK
A
L34
101-RD
L6
410-WH
201-BK
L29
L27
L65
AA
A
AA
AA
AA
556-WH
A
A
A
A
727-GN
A
A
A
A
A
A
A
A
A
A
462-YL
202-BK
165-YL
522-WH
201-BK
441-OR
450-YL
403-GN
419-YL
405-GY
406-PU
413-BR
447-PK
201-BK
A
A
A
201-BK
417-GY
A
A
606-GY
605-YL
408-WH
201-BK
A
160-PU
A
A
A
B751-BU
E975-PU
E975-PU
450-YL
200-BK
201-BK
200-BK
134-YL
WH-18
A
977-YL
A
200-BK
CENTERSHIFT
SOLENOID
8T-8808
1
2
B751-BU
200-BK
GN
GN
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
403-GN
200-BK-6
449-BU
7
A
A
A
201-BK
450-YL
449-BU
606-GY
605-YL
614-PU
200-BK
417-GY
467-WH
409-OR
408-WH
404-YL
419-YL
201-BK
410-WH
A429-YL
439-YL
201-BK
413-BR
406-PU
405-GY
415-GN
447-PK
441-OR
113-OR
403-GN
403-GN
1
2
112-PU-10
101-RD-4
101-RD-10
1
2
1
2
STOP LAMP
SW
2M-9346
200-BK
113-OR
307-OR
307-OR
L34
124-GN
WH-18
202-BK
5
CENTERSHIFT
INDICATOR SW
3E-9367
201-BK
101-RD-10
L34
L35
L23
L36
L40
113-OR
L40
L40
L40
122-BU-14
L71
A
A
A
130-GN
604-OR
408-WH
488-WH
408-WH
201-BK
113-OR
439-YL
1
2
114-GN
322-GY
1
2
3
4
5
570-BU
977-YL7
OPERATOR STATION
8
373-GN
WH-18
1
2
200-BK-6
200-BK
202-BK
6
5
4
3
2
1
122-BU-14
200-BK
1
2
DIFFERENTIAL
UNLOCK SOLENOID
7T-9073
122-BU-14
200-BK
200-BK
L51
321-BR
L51 L51
L51
L51
604-OR
556-WH
122-BU-14
605-YL
606-GY
614-PU
L51
L51 L51
1
2
200-BK
556-WH
GN
GN
556-WH
105-8827 DIODE AS.
E
200-BK
1
2
E
E
E
6 4
3
4
3
6
5 5
K
K
L16
L13
L16
L13
K
101-RD-14
113-OR
112-PU-10
200-BK
B+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
BK
WH
WH/BK
GY
GY/BK
K
K
605-YL
619-GN
611-PU
200-BK
200-BK
L13
L13
L16
L16
200-BK
K
K
200-BK
12V RADIO
3E-7140
108-BU
200-BK
DOME LAMP
8C-9678
A513-PK
592-BU
200-BK
508-PU
509-WH
511-BR
512-GN
113-OR
3
2
1
BK
RD
WH
2
1
8
7
2
1
8
7
200-BK
113-OR
A513-PK
200-BK
512-GN
511-BR
592-BU
200-BK-8
200-BK
113-OR
A513-PK
GY/BK
GY
WH/BK
WH
BK
RD
L19
L16
L13
RD
ANTENNA
9W-3072
CABLE AS.
9X-3073
YLB+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
24V RADIO
9X-6779
L22
L19
L19
L19
L62
L62 L62
L62
L16
L16
L15
L14
L14
L14L14
L13
L2
L2
L15
L15
L15
L2
L2
200-BK
A506-OR
A503-PK
L22
200-BK200-BK
601-GY
200-BK-8
112-PU-10
113-OR
A513-PK
605-YL
606-GY
611-PU
619-GN
507-WH
578-BU
506-PU
152-BU
576-PK
577-PU
575-YL
101-RD
605-YL
606-GY
611-PU
619-GN
108-BU
200-BK
511-BR
512-GN
A513-PK
592-BU
200-BK
511-BR
512-GN
509-WH
508-PU
BLOWER
9X-0343
DEFROSTER
9X-9657
508-PU
509-WH
LEFT SPEAKER
6T-7695
A506-OR
200-BK
501-GN
118-GY
500-BR
502-OR
RESISTOR
7T-4003
RD
BK
200-BK
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
T°
BK
MOTOR
1
2
+
-
+
-
592-BU
113-OR
FRONT UPPER
WIPER
9X-3392
K
A506-OR
K
K
K
K
K
K
K
K
K
K
K
K
K
K
KK
K
K
K
K
101-RD-14
200-BK
605-YL
606-GY
611-PU
200-BK
200-BK
619-GN
611-PU
605-YL
200-BK
200-BK
200-BK
619-GN
BK
RD
2
1
RIGHT SPEAKER
6T-7695
CAB TURN
SIGNAL
7X-6066
CAB HI BEAM
HEADLAMP
9X-7164
CAB LO BEAM
HEADLAMP
9X-6874
CAB TURN
SIGNAL
7X-6066
CAB HI BEAM
HEADLAMP
9X-7164
CAB LO BEAM
HEADLAMP
9X-6874
606-GY
200-BK
611-PU
200-BK
RD
BK
200-BK
619-GN
1
2
200-BK
605-YL
611-PU
200-BK
619-GN
200-BK
L22
L
L
L
L
L
L
L
L
L
L L
L
L
L
L
L
L
L
L
L
L
L
L
578-BU
L
L
L
L
L
L
L
L
L
L
577-PU
576-PK
575-YL
506-PU
505-BU
504-YL
119-PK
REAR
DEFROST SW
9X-9638
FRONT
DEFROST SW
9X-9638
152-BU
152-BU
152-BU
200-BK
119-PK
119-PK
H
L
B B
P
W
L
W
P
B
503-BR
B
L
W
H
P
B
507-WH
119-PK
119-PK
118-GY
L
L
200-BK
601-GY
144-GN
603-PK
3
118-GY
118-GY
118-GY
CAB SWITCH AND FUSE PANEL
584-YL
584-YL
4K-5122 HOLDER AS.
3K-8782 FUSE
601-GY
200-BK
7
2
3
6
4
5
1
2
1
9
5
3
4
2
6
8
7
10
200-BK
200-BK
FRONT LOWER
WIPER SW
3T-6655
118-GY
152-BU
119-PK
141-PK
151-GN
108-BU
144-GN
A503-PK
A506-OR
584-YL
2
151-GN
5
1
584-YL
3
4
A504-GN
6
A507-YL
200-BK
141-PK
601-GY
101-RD
507-WH
578-BU
506-PU
118-GY
501-GN
500-BR
502-OR
200-BK
A507-YL
A504-GN
603-PK
119-PK
505-BU
503-BR
504-YL
FRONT UPPER
WIPER SW
3T-6655
BEACON SW
9X-9639
101-RD
152-BU
108-BU
A503-PK
A506-OR
152-BU
576-PK
575-YL
577-PU
UPPER WIPER/WASHER
LOWER WIPER/WASHER
REAR WIPER/WASHER
FRONT DEFROSTER
REAR DEFROSTER
DOME LAMP
BEACON
10A
10A
10A
10A
10A
10A
10A
B
6
L
H
4
3
119-PK
200-BK
502-OR
601-GY
200-BK
1
5
101-RD
L
501-GN
500-BR
2
L
L
L
REAR
WIPER SW
3T-6655
T
T
T
200-BK
570-BU 570-BU
200-BK
GN
GN
1
2
GN
GN
1
2
BLADE
CUSHION
SOLENOIDS
7T-6517
570-BU
200-BK
CC
CC
609-YL
200-BK
609-YL
200-BK
BLADE
FLOOD
LAMP
9X-6775
BLADE
FLOOD
LAMP
9X-6775
3
2
1
W
W
2
110A
603-PK
200-BK
200-BK200-BK
BEACON
9X-9556
BULB
9X-7849
BEACON SW
9X-9639
601-GY
200-BK
OPEN ROPS BEACON ATCH
101-RD
BEACON FUSE
W
W
W
601-GY
144-GN
3
2
W
W
W
462-YL
727-GN
200-BK
101-RD-4
101-RD-4
112-PU-4
7
8
6
3
4
5
2
1
9
7
8
2
3
4
1
5
7
6
C
C
200-BK
727-GN
462-YL
326-PU
105-BR
522-WH
597-PU
795-YL
202-BK
450-YL
406-PU
441-OR
201-BK
6
200-BK
447-PK
608-GN
403-GN
306-GN
310-PU
308-YL
C
405-GY
112-PU-4
101-RD-4
C
105-BR
326-PU
308-YL
403-GN
200-BK
200-BK
10
2
5
3
4
1
7
C
403-GN
200-BK
728-BU
136-GN
308-YL
7
6
5
4
3
2
L60
L60 L60
L60
L60
L58
L58
L67
L67
L67
L57
L57
L56 L56
L56 L56
L55
L55
L55
L55
L55
L60
L54 L54
L54
L54
200-BK
A429-YL
A429-YL
200-BK
1
2
1
L67
L60
L60
L58
L58
L58
L57
L57
L54
L54
L55
L55
L56
L56
6
200-BK
AIR INTAKE
HEATER RELAY
3E-7279
C
C
200-BK
334-BU
160-PU
160-PU
C
101-RD-4
REAR
FRAME
9
8
5
1
2
4
3
1
417-GY
727-GN
403-GN
C
C
101-RD-4
C
C
C
2
C
C
413-BR
727-GN
A/C REFRIGERANT SW
114-5334
NOTE A
L
H
SUPPLEMENTAL
STEERING
RELAY
3E-0154
301-BU
302-OR
RESISTOR
6T-2217
201-BK
405-GY
BK
BK
5
16
17
3
7
2
9
1
12
8
6
4
13
10
11
15
18
19
20
14
T°
BK
BK
1
2
326-PU
200-BK-10
301-BU-10
310-PU
311-WH
203-BK
207-BK
302-OR
109-OR
101-RD
112-PU
308-YL
306-GN
304-WH
2
207-BK
203-BK
1
301-BU
2
1
450-YL
202-BK
WH
BK
ENGINE
OIL SW
9X-0378
513-OR
597-PU
ENGINE SPEED
SENSOR
3E-7886
COOLANT TEMP
SENDER
4W-9972
1
2
AIR CONDITIONER
CLUTCH SOL
101-1759
GN
GN
STARTER
106-8558
301-BU-10
304-WH-10
2
1
3
GND
START
STOP
FUEL SW
115-7103
B
201-BK
413-BR
441-OR
ENGINE
G S
MTR BAT
MOTOR
B
B
B
B
B
B
597-PU
522-WH
795-YL
795-YL
597-PU
441-OR
413-BR
406-PU
405-GY
326-PU
450-YL
202-BK
201-BK
201-BK
B
B
B
201-BK
B
B
B
B
B
B
B
522-WH
200-BK
200-BK
6
1
2
3
4
8
5
7
311-WH
200-BK
105-BR
8
6
RD-18
BU-18
L48
1
200-BK
L48 L48
L48
L52
L52
L49
L49 L49
L49 L49
L48
L48
L48
L48
1
2
200-BK
3E-9169 DIODE AS.
SHUTDOWN
SOL
8C-3663
200-BK-10
406-PU
201-BK
7
2
L52
L52
L52
NOTE J: FOR USE WITH AFTERCOOLED ENGINES
NOTE H: FOR USE WITH NON-AFTERCOOLED ENGINES
1
4
5
3
STARTING AND CHARGING
DIAGNOSTIC CONNECTOR
BK-18
BK
BK
2
BK
BK
1
200-BK
795-YL
200-BK
DUAL HORSEPOWER
SOLENOID
111-0570
B
GN
GN
T°
513-OR
1
2
2
B
2
727-GN
1
200-BK
727-GN
462-YL
COOLANT TEMP
SWITCH
8T-9793
200-BK
105-BR
COOLANT SW
8C-3569
B
BB
B
B
T°
B
311-WH
462-YL
B
B
NOTE G: USE 20 A FUSE WHEN ATTACHMENT AIR CONDITIONER
(HEATS AND COOLS) WITH ROOF TOP CONDENSER
IS PRESENT
2
4
6
7
9
5
8
1
3
2
1
1
C
A
B
6
5
3
2
1
4
L
165-YL
165-YL
165-YL
165-YL
601-GY
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J J
J J
J
J
J
J
J
J
J
J
J
J
J
J
619-GN619-GN
200-BK
200-BK
614-PU
614-PU
614-PU
609-YL
601-GY
601-GY
200-BK 200-BK
200-BK
200-BK
601-GY
601-GY
200-BK
200-BK
200-BK
165-YL
3
2
J
J
J
J
10
107-WH
J
J
7
122-BU-14
124-GN
113-OR
136-GN
126-PK
130-GN
134-YL
105-BR
RESISTOR
3T-3123
2
5
1
3
4
6
200-BK
601-GY
629-PK
614-PU
2
115-PK
103-YL
1
200-BK
3
601-GY
200-BK
601-GY
415-GN
308-YL
B899-OR
202-BK
165-YL
201-BK
J
310-PU
4
600-BR
102-BU
YL-18
GN-18
BK-18
RD-18
AIH
TIMER
4Y-7948
334-BU
2
373-GN
116-BR
601-GY
3 1
200-BK
103-YL
6
4
3
1
5
2
HEADLAMP/
TAIL SW
3E-9317
609-YL
2
1
SPARE
SHUTDOWN CNTRL
101-RD
115-PK
112-PU-8
102-BU
101-RD
102-BU
308-YL
322-GY
114-GN
605-YL
606-GY
614-PU
611-PU
619-GN
601-GY
NOTE F
START AID
EMS TEST SW
9X-9628
2
5
605-YL
606-GY
1
3
200-BK
101-RD-10
556-WH
601-GY
4
556-WH
6
SERVICE
METER
6T-7337
200-BK
322-GY
TURN SIGNAL
SW
9G-5589
2
1
PANEL LAMP
DIMMER SW
3E-9318
122-BU-14
124-GN
200-BR
113-OR
601-GY
136-GN
600-BR
601-GY
601-GY
126-PK
614-PU
608-GN
165-YL
169-PK
116-BR
149-PU
103-YL
173-YL
308-YL
200-BK
L76
403-GN + -
J
STEERING CONSOLE
130-GN
200-BK
134-YL
114-GN
105-BR
TAIL LAMPS
TURN SIGNALS
J
200-BK
STOP LAMPS
SUPP STEER
HORN
308-YL
AIR DRYER
NOTE G
KEY SW
AIR CNDTR
GAGES
SUPP STEER
1
2
XSMN CNTRL
DIFF LOCK
BLADE CNTRL
REAR FLOODS
BLADE FLOODS
614-PU
619-GN
6
3
101-RD-10
10A
FLASHER
108-0358
619-GN
537-GN
1 4
5
6
2
3
611-PU
HEADLAMP DIMMER SW
103-5678
149-PU
601-GY
FLOOD
LAMPS
9X-9632
200-BK
601-GY
FUSE BLOCK
9G-0747
5
2
4
5
15A
EMS TEST SW
106-2477
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
200-BK
200-BK
200-BK
DIFFERENTIAL
UNLOCK SW
123-5862
LIGHT BAR
LOW BEAM
9X-9631
L76
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
308-YL
601-GY
200-BK
J
J
200-BK
J
J
J
2
3
TAIL
LAMP SW
3E9319
200-BR
614-PU
601-GY
103-YL
B
J
J
J
JJ
J
J
J
J
J
J
FUSE BLOCK
9G-0747
107-WH
J
103-YL
3K8782 FUSE (10A)
8M8948 FUSE (15A)
8M0456 FUSE (20A)
NOTE F
B
200-BK
614-PU
601-GY
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
P
P
200-BK
200-BK
619-GN
619-GN
611-PU
611-PU
P
P
L1
L1
L1L1
200-BK
P
P
P
P
P
P
P
619-GN
611-PU
606-GY
611-PU
606-GY
619-GN
606-GY
200-BK
606-GY
605-YL
611-PU
619-GN
200-BK
200-BK
RD
BK
1
2
619-GN
200-BK
200-BK
611-PU
605-YL
200-BK
1
2
RD
BK
LO BEAM
HEADLAMP
9X-7169
HI BEAM
HEADLAMP
9X-7170
TURN
SIGNAL
7X-6066
619-GN
200-BK
611-PU
200-BK
LO BEAM
HEADLAMP
9X-7169
HI BEAM
HEADLAMP
9X-7170
TURN
SIGNAL
7X-6066
2
1
HEADLAMP
BREAKER
3T-2662
15A
AA
HORN SW
8W-1957
NN
REAR
FRAME
BK-00
UU
UU
1
2
200-BK
A507-YL
200-BK
RD
BK
200-BK
603-PK
200-BK
504-YL
119-PK
503-BR
505-BU
603-PK
A504-GN
A507-YL
BLOWER
9X-0343
504-YL
119-PK
503-BR
505-BU
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
T°
BK
DEFROSTER
9X-9657
MOTOR
L41
L41
L41
L41
L41
L41
L41
L20
L20
L20
1
2
RESISTOR
7T-4003
BEACON
9X-9556
BULB
9X-7849
REAR WIPER
9X-3392
L20
L20
4
8
1
6
3
5
7
2
200-BK
200-BK
200-BK
H
H
H
H
H
H
H
1
4
8
7
1
3
2
9
6
2
INSTRUMENT PANEL
10
5
2
5
7
9
3
4
6
8
1
450-YL
449-BU
160-PU
200-BK
OPERATOR MONITOR 9X-7801
LAMP
UNUSED
UNUSED
GROUND
NEUTRAL
BK AIR PRESS
HYD TEMP
BRAKE ON
UNUSED
ALARM
+ BATTERY
PRIM STEER
SHIFT FAULT
UNUSED
UNUSED
FUEL PRESS
ALTERNATOR
TEST
ENG OIL PRESS
COOLANT TEMP
11
18
14
2
9
8
7
19
17
10
12
4
13
6
5
15
3
467-WH
417-GY
410-WH
485-YL
419-YL
404-YL
408-WH
409-OR
M
16
200-BK
20
M
M
AIH LAMP
7N-5876
200-BK
160-PU
411-PK
201-BK
201-BK
201-BK
413-BR
113-OR
113-OR
406-PU
405-GY
614-PU 614-PU
614-PU614-PU
614-PU 614-PU
614-PU
449-BU
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
M
M
M
1
M
113-OR
LAMP
8M-6176
FUEL
LEVEL
COOLANT
TEMP
M
M
M
M
M
M
M
M
A429-YL
B426-BU
M
M
113-OR
441-OR
614-PU
447-PK
200-BK
LAMP
8D-1429
TACHOMETER
110-8468
M
403-GN
GAGE
CLUSTER
124-0384
415-GN
WH
RD
OR
PU
GN
GY
PK
YL
BK
(12 V)
(24 V)
(12 V)
(24 V)
IGN
SEND
GRD
IGN
SEND
GRD
IGN
SEND
GRD
M
RIGHT TURN
INDICATOR
LAMP
7N-5876
NOTE B
606-GY
200-BK
113-OR
M
M
M
M
450-YL
ARTICULATION
113-OR
200-BK
614-PU
200-BK
200-BK
614-PU
SPEEDOMETER
110-2338
ACTION
LAMP
9W-2111
NOTE B
411-PK
201-BK
200-BK
439-YL
200-BK
605-YL
200-BK
614-PU
200-BK
614-PU
200-BK
113-OR
449-BU
C'SHIFT PIN
INDICATOR
LAMP
7N-5876
NOTE B
LEFT TURN
INDICATOR
LAMP
7N-5876
NOTE B
R/S SYSTEM
AIR PRESS
GAGE
1W-3306
LAMP
7N-5876
L/S SYSTEM
AIR PRESS
GAGE
1W-3306
LAMP
7N-5876
M
M
MM
M
TRANS
LAMP
7N-5876
200-BK
M
M
E975-PU
LAMP
8D-1429
200-BK
200-BK
200-BK
G
S
T
605-YL
604-OR
614-PU
606-GY
321-BR
1
2
321-BR
200-BK
200-BK
606-GY
614-PU
604-OR
608-GN
BACKUP
ALARM
3T-1815
200-BK
G
1
2
1
3
2
200-BK
606-GY
614-PU
604-OR
604-OR
614-PU
606-GY
321-BR
200-BK
200-BK
604-OR
614-PU
200-BK
RD
WH
BK
TURN LAMP
7X-6066
STOP/TAIL
LAMP
8C-6207
RD
BK
606-GY
200-BK
1
3
2
605-YL
200-BK
RD
BK
STOP/TAIL
LAMP
8C-6207
TURN LAMP
7X-6066
RD
WH
BK
604-OR
614-PU
200-BK
T
S
D
200-BK
200-BK
200-BK
200-BK
200-BK
L50
L50
L50
L50
200-BK
D
D
D
D
D
D
S
S
S
S
S
S
112-PU
112-PU
112-PU
112-PU
112-PU
4
CAB
GROUND
FRONT
FRAME
ZZZZ
2
1
2
1
L69
608-GN
200-BK
608-GN
200-BK
L69
L69
L69
L69
HH
HH
HH
200-BK
608-GN
REAR FLOOD
LAMP
9X-6775
608-GN
200-BK
REAR FLOOD
LAMP
9X-6775
DD
DD
2
1
109-OR-10
200-BK
608-GN
BK
BK
AIR DRYER
8W-3087
T°
200-BK
200-BK
306-GN
112-PU
112-PU-4
304-WH-10
101-RD
101-RD-4
200-BK-4
ALTERNATOR
BREAKER
2H-1507 STD
9S-0174 ATCH
9S-4693 ATCH
60A
403-GN
311-WH
310-PU
1
2
BK-18
BK-18
START AID
SOLENOID
9G-4365
NOTE F
FUEL LEVEL
SENDER
120-9588
GN-18
BK-18
447-PK
200-BK
1
2
109-OR-4
109-OR
308-YL
308-YL
200-BK
ALTERNATOR
100-5047 50A ATCH
3E-7577 75A ATCH
6N-9294 35A STD
MAIN
RELAY
101-7740
START
RELAY
3E-7279
35A
109-OR-4
304-WH
200-BK-4
ALT
+
R
310-PU
311-WH
311-WH
109-OR
112-PU
308-YL
306-GN
304-WH
101-RD
310-PU
308-YL
Y
310-PU
308-YL
306-GN
Y
Y
Y
Y
200-BK
L62
L62
L62
L68
L63
L63
L63
L63
L62
L68L68
Y
200-BK
Y
Y
1
311-WH
2
2
1
Y310-PU
310-PU
311-WH
L63
80A
Y
200-BK
200-BK 200-BK
Y
Y
Y Y
Y
Y
200-BK
200-BK
Y CONN. B
Y
109-OR-4
Y CONN. A
Y
109-OR-4
200-BK
Y
1
2
200-BK
CONNECT CONN. A TO
CONN. B WHEN USING
STARTING/CHARGING
ANALYZER WITHOUT
START AID
ATTACHMENT
EE
EE
EE
EE
200-BK-10
176-OR-14
176-OR-14
200-BK-10
2
24V TO 12V CONVERTER
3E-8646
IGNITION
12V OUT
GROUND
24V IN
LOCALIZED
GROUND
STUD
1
15A
113-OR
(NOTE E)
25A CONVERTER
BREAKER
3T-2662
LIGHTBAR
LOW BEAM
BREAKER
3T-2662
15A
BB
BK-00
LL
BK-00
RR
RR
RD-00
TT
TT
DISCONNECT SW
7N-0718
12V BATTERY
3T-5760 STD
9X-9721 ATCH
NEGPOS
NEG POS
12V BATTERY
3T-5760 STD
9X-9721 ATCH
SUPPLEMENTAL
STEERING
MOTOR
116-4531
MOTOR
10
Q
200-BK
629-PK
Q
K
Q
Q
Q
200-BK
629-PK
200-BK
629-PK
LO BEAM
HEADLAMP
9X-7169
629-PK
200-BK
LO BEAM
HEADLAMP
9X-7169
629-PK
200-BK
629-PK
200-BK
BATTERIES 9X-9721 MUST BE USED WITH
SUPPLEMENTAL STEERING CONTROL
NOTE D:
8T-9722
7V-8390
6D-4162
6D-4161
SHELL
SPRING
BUSHING
CONTACT
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
NOTE F: USE 9X-9628 SWITCH WITH ETHER START
AID ATTACHMENT.
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
THIS IS THE SCHEMATIC FOR THE 120H AND 135H
NA MOTOR GRADER
UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE
ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAGE
AND XMSN SHIFTER IN NEUTRAL
6R
5R
4R
3R
2R
1R
8F
7F
6F
5F
4F
3F
2F
1F
N
PARK
NOTE E: POWER LEADS FOR 2-WAY FM COMMUNICATION
RADIO SHOULD BE SIZE 10 AWG
TRANSMISSION SHIFT LEVER LOGIC TABLE:
NOTE B:
TO
GND
NOTE C:
24V OUTPUTS
NEU
SOL
RET8
W/
AWD76
SOLENOIDS D
HPGEAR 5
B
U43
S
T21
200-BK
101-RD
SOCKET AS.
9R-7941
PP
PP
101-RD
PP
PP
SENDER
3E-5383
ARTICULATION
RD-00
RD-00
RD-00
QQ
RD-00
QQ
QQ
BK-00
SS
SS
AAA
AAA
101-RD-4
101-RD-4
101-RD-4
CCC
AIR INTAKE
HEATER
6I-4753 NOTE H
107-9562 NOTE J
CCC
200-BK-4
200-BK-4
BUS BAR
9W-0742
DDDDDD
RD-00
2
4
1
5
3
9
8
7
6
5
4
3
2
1
3
2
1
200-BK
200-BK
200-BK
200-BK
601-GY
601-GY
601-GY
CUSHION
BLADE SW
9X-9629
9G-9813
308-YL
326-PU
307-OR
105-BR
RD
BK
ST
ON
OFF
B
601-GY
S
202-BK
C
522-WH
200-BK
521-YL
124-GN
R
U
CENTERSHIFT
PIN SW
9X-9634
SUPP STER
TEST SW
9X-9633
U
U
U
200-BK
U
U
CONN. C
CONN. B
CONN. A
U
U
U
U
U
U
U
U
200-BK
200-BK
200-BK
601-GY
165-YL
B751-BU
601-GY
200-BK
570-BU
169-PK
601-GY
200-BK
U
U
601-GY
200-BK
PANEL LAMP
(SHIFT LEVER)
7N-5876
200-BK
462-YL
3
1
2
410-WH
201-BK
2
200-BK
601-GY
101-RD
MATE WITH BEACON
HARNESS "W"
U
2
3
200-BK
601-GY
134-YL
727-GN
L42
3
601-GY
6
10
200-BK
601-GY
202-BK
977-YL
200-BK
601-GY
U
B751-BU
KEY START SW
9G-7641
601-GY
L42
L42
2
U
U
U
U
308-YL
308-YL
200-BK
601-GY
373-GN
373-GN
308-YL
200-BK
200-BK
601-GY
U
U
U
2
3
U
AIR INLET
HEATER SW.
115-1969
ACTION ALARM
BBB
BBB
160-PU-4
160-PU-4
X
BLOWER
9X-9363
515-GY
200-BK
124-GN
521-YL
515-GY
516-GN
517-BU
BLOWER SW
6P-3236
RESISTOR
9G-1950
3
5
1
4
2
BASE
7G-9730
PANEL LAMP
8D-1429
WH/RD-14
BK-14
2
1
MOTOR
3
4
5
2
1
200-BK
601-GY
HEATER GP 8C-9787
X
4
3
2
1
FFFF
2
1
2
1
2
1
GGGG
54
3 1
200-BK-14
CONDENSER
RELAY
3T-2170
CONDENSER
MOTOR
7X-6279
CONDENSER
MOTOR
7X-6279
597-PU
521-YL
158-BR-14
200-BK-14
593-GN-14
200-BK-14
593-GN-14
597-PU-14
521-YL-14
MOTOR
GG
WH/RD-14
WH/RD-14
BK-14
BK-14
GG
CONDENSER GP-ROOFTOP 103-8519
MM
WITH 8C-9788 COND. GP.,
CONN. A MATES TO CONN. B
WITH 8C-9787 HEATER GP.,
CONN. A MATES TO CONN. C
200-BK
601-GY
T°
MOTOR
2
1
WH/RD-14
BK-14
PANEL LAMP
8D-1429
BASE
7G-9730
THERMOSTAT
SW
9X-5445
RESISTOR
9G-1950
BLOWER SW
6P-3236
124-GN
521-YL
515-GY
516-GN
517-BU
CONDITIONER GP-B 8C9788
515-GY
200-BK
BLOWER
9X-9363
3
5
1
4
2
X
X
WITH 103-8519 ROOFTOP CONDENSER GP., REMOVE
JUMPER KK AND MATE HARNESS FF TO
HARNESS A
BK
BK
KK
KK
PP
CIRCUIT GROUPING
DESIGNATION
L#
V
W
X
X
Y
Z
LL
QQ
RR
SS
TT
TT
UU
VV 7G-1060 00
VV
WW
XX
YY
ZZ
DDD
AA
BB
CC
DD
EE
FF
GG 9X-4189 00
HH
JJ
NOTECHG
ATCH WIRE, CABLE &
COMPONENT
CABLE AS.
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
LOC
WIRE AS.
HARNESS AS.
PART NO.IDENT
BLUE
GREEN
BU
GN
RD
WH
OR
YL
PK
BK
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
CONNECTOR
SYMBOL DESCRIPTION
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
YELLOW
ORANGE
WHITE
RED
BR
PU
GY
L
M
N
P
Q
S
T
U
A
B
C
D
E
F
G
H
J
K
LEVEL
MM
NN 8W-1917 00
AAA
BBB
CCC
9 8 7
9 8 7
6 5 4 3 2 1
6 5 4 3 2 1
F
E
D
C
B
A
F
E
D
C
B
A
12 11
14 1315
10
15 14 13 12 11 10
4
ATCH
231
(EEC SOCKET)
155(CONDENSER JUMPER)
115-4599 00
4E-8715 00
207
(ENGINE SHUTDOWN CNTRL)
108-2302 01
ATCH
206
(REAR FLOOD LMP-FUEL TNK)
101-8193 03
ATCH
152
(CONDENSER GP-ROOFTOP)
ATCH
151
(CONDENSER GP-CAB)
8X-9091 03
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
171
271
184
150
154
230
260
141
142
106
205
208
(2-WAY RADIO CONVERTER)112-0829 01
(REAR FLOOD LAMP)
101-8192 01
(BLADE FLOOD LAMP)
101-8190 02
(LOW BEAM BREAKER-BAR)
101-8196 01
(HEADLAMP BREAKER)101-8197 01
(SUPPLEMENTAL STEERING)101-8185 01
(FUEL TANK)101-8172 05
(HEATER GP)117-8567 00
(CONDITIONER GP-B)
117-8567 00
(BEACON-OPEN ROPS)101-8200 01
(TRANS SPEED SENDER)
104-8588 01
(XSMN CONSOLE-SWITCHES
123-6633 00
ATCH
ATCH
110
220
200
203
201
202
170
182
140
181
180
160
270
100
101
183
104
(PLATFORM)
122-8882 00
(ENGINE)
104-6084 03
(R FRAME-ENGINE)
126-2793 00
(RADIATOR GRILL)101-8171 02
(R FRAME)
101-8169 01
(R FRAME-TRANS)
104-5874 01
(XSMN CONSOLE)106-1319 03
(CAB-REAR)
101-8161 02
(STEERING CONSOLE)123-0957 00
(CAB-FRONT)
101-8162 03
(SW PANEL)
101-8164 03
(GAGE CONSOLE)
123-0962 00
(TRANSMISSION)
9U-9313 01
(HEADLIGHTS-BAR)
101-8205 02
(LOW BEAMS)
101-8194 02
(CAB FUSE PANEL)
101-8181 03
(BLADE CUSHION)101-8188 02
ATCH
ATCH
ATCH
ATCH
153
143
215
216
217
(CONDENSER FAN JUMPER)6T-6962 00
(HORN SWITCH)
(AIH RELAY TO BUS BAR)
124-2802 00
(AIH RELAY TO AIH)
117-4472 00
(AIH TO ENG GND)108-5747 00
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
221
210
211
212
213
213
214
204
204
261
262
263
105
218
(START MTR TO ENGINE)
8Y-9603 01
(POS BAT TO START MTR)
111-0871 00
(NEG BAT/DISCONNECT SW)
5T-1553 01
(DISCONNECT SW TO GND)
110-6399 01
(NEG BAT TO POS BAT)
115-6908 00
(NEG BAT TO POS BAT)
115-8547 00
(START MTR TO FRAME GND)
061-7661 03
(GND-R FRAME TO F FRAME)
(GND-R FRAME TO F FRAME)
8X-9618 01
(START MTR/STR RELAY)
115-5322 00
(STEERING MTR TO GND)
101-8204 01
(STR RELAY TO STR MTR)
115-5321 00
(GND-F FRAME TO CAB)
1S-2342 02
(START MTR TO BUS BAR)
124-2802 00
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
EMS CIRCUIT.
PANEL AND TAIL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE SHUTDOWN CONTROL CIRCUIT.
TURN SIGNAL CIRCUIT.
START AID CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
24-80024-257SCH
GRD
SEND
IGN
GRD
SIG
IGN
3
4
5
2
1
MOTOR