12H, 140H AND 160H MOTOR GRADERS (NA VERSION) ELECTRICAL

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
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
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.
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
plugand 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.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power 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 LOCK
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 Lighting Circuits
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 - REAR
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
Monitoring 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 PRLMARY 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 GEAR
449 BU SPDOM SENDER (SIGNAL NO. 1) * E939 WH MG MESH CNTL - SECOND GEAR
450 YL TACH SENDER + E940 BU MG MESH CNTL - THIRD GEAR
462 YL SUPPL STER MOTOR INDICATOR E941 YL MG MESH CNTL - FOURTH GEAR
467 WH SYSTEM FAULT (TRANSMISSION) E942 GN MG MESH CNTL - FIFTH GEAR
485 YL OPR MONITOR PANEL AWD FAULT E943 BR MG MESH CNTL - SIXTH GEAR
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 GEAR
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 - PARK
E949 YL MG MESH CNTL - NEUTRAL
E975 PU MESH LAMP
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
Connectors
Machine
Location
Components
Schematic
Location
40 Contacts *
G - 106-1319
Transmission Control
A-7
A - 122-8882
G - 106-1319
B-7
24 Contacts *
G - 106-1319
Transmission Shifter Sw
A-8
A - 122-8882
G - 106-1319
B-7
B - 101-8174
Diagnostic Connector
E-14
A - 122-8882
J - 123-0957
D-8
*
M - 123-0957
Monitor (EMS)
E-6
A - 122-8882
J - 123-0957
D-8
A - 122-8882
C - 101-8170
D-12
A - 122-8882
K - 101-8162
C-6
A - 122-8882
J - 123-0957
D-10
A - 122-8882
M - 123-0962
E-6
A - 122-8882
J - 123-0957
E-9
A - 122-8882
U - 123-6623
B-8
A - 122-8882
K - 101-8162
C-6
B - 101-8174
Y - 101-8172
E-13
A - 122-8882
M - 123-0962
E-6
C - 101-8170
Y - 101-8172
C-13
A - 122-8882
M - 123-0962
E-6 *
C - 101-8170
Z - 101-8185
F-12
A - 122-8882
U - 123-6633
B-9
F - 101-8168
G - 106-1319
E-12
F - 101-8168
N - 9U-9313
E-15
F - 1O1-8168
G - 106-1319
E-12
K - 101-8162
L - 101-8164
C-5
K - 101-8162
L - 101-8164
C-5
A - 122-8882
C - 101-8170
E-12 *
JJ - 108-2302
Shutdown Control
E-13
A - 122-8882
C - 101-8170
F-12
D - 101-8171
E - 101-8169
F-14
C
G - 106-1319
Service Tool Connector
B-7 *
A - 122-8882
Voltage Converter
F-10
*
M - 123-0962
Gauge Cluster
F-6
A - 122-8882
P - 101-8205
F-3
A - 122-8882
E - 101-8169
B-12
A - 122-8882
U - 123-6633
B-9
B - 101-8174
C - 101-8170
B-13 *
U - 123-6633
AC/Heater Unit
A-11
B - 101-8174
C - 101-8170
B-13 C
G - 106-1319
G - 106-1319
A-8
K - 101-8162
Radio
F-11 *
A - 122-8882
Centershift Switch
B-3
H - 101-8161
L - 101-8164
A-6 *
A - 122-8882
Front Lower Wiper
C-4
*
H - 101-8161
Rear Wiper
B-11
*
K - 101-8162
Front Upper Wiper
D-4
J - 123-0957
Not Used
D-8
C = Operator's compartment (Right side console).
20 Contacts
HARNESS CONNECTOR LOCATION CHART
7 Contacts
6 Contacts
5 Contacts
4 Contacts
* = Connector is located at the component.
Machine locations are repeated for connectors located close together.
10 Contacts
9 Contacts
8 Contacts
Machine
Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
C
Alarm - Action B-8
13
Sensor - Engine Speed B-14
1
Alarm - Backup E-15
14
Sensor - Transmission Speed D-15
2
Alternator (35A standard) D-14
15
Solenoid - A/C Clutch A-13
3
Battery C-14
16
Solenoid - Centershift B-3
4
Battery C-14
17
Solenoid - Differential Unlock E-14
5
Breaker - Alternator (35A) D-13
5
Solenoid - Dual Horsepower A-13
B
Breaker - Headlamp (15A) D-10
16
Solenoid - Forward Horn F-3
B
Breaker - Lightbar (15A) D-10
16
Solenoid - Park Brake B-12
6
Control - Engine Shutdown D-13
5
Solenoid - Engine Shutdown D-13
6
Control - Supplement Steer E-13
18
Solenoid - Start Aid A-13
E
Control - Transmission A-7
16
Solenoids - Blade Cushion E-2
C
Control - Transmission Shifter A-8
14
Solenoids - Transmission Valve (8) D-15, E-15
7
Converter - Voltage F-10
15
Switch - A/C Refrigeration A-13
B
Flasher E-10
18
Switch - Air Dryer F-14
B
Fuses D-9
C
Switch - Beacon B-6
B
Fuses E-10
C
Switch - Beacon B-10
C
Fuses (10A) B-6
C
Switch - Blower (A/C group) B-10
A
Gauge - Articulation F-5
C
Switch - Blower (Heater group) A-10
A
Gauge - Engine Coolant Temperature F-5
16
Switch - Brake Air Pressure A-2
A
Gauge - Fuel Level E-5
16
Switch - Brake Air Pressure A-2
A
Gauge - Speedometer F-5
19
Switch - Centershift Indicator B-3
A
Gauge - System Air Pressure (left side) E-5
C
Switch - Centershift Pin B-9
A
Gauge - System Air Pressure (right side) E-5
C
Switch - Cushion Blade B-8
A
Gauge - Tachometer E-5
B
Switch - Differential Unlock D-9
A
Lamp - Action E-5
13
Switch - Disconnect C-14
B
Meter - Service E-10
11
Switch - Engine Coolant Temp
(monitor)
B-14
A
Monitor - Electronic Monitoring System
(EMS)
E-6
11
Switch - Engine Coolant Temp
(start aid)
A-14
E
Motor - Blower A-12
13
Switch - Engine Oil Pressure C-13
E
Motor - Blower (A/C group) B-10
B
Switch - Flood Lamps D-8
E
Motor - Blower (heater group) A-10
B
Switch - Forward Horn E-9
E
Motor - Blower/Defroster E-4
C
Switch - Front Defroster A-6
8
Motor - Front Lower Washer F-6
C
Switch - Front Lower Wiper A-5
9
Motor - Front Lower Wiper C-4
C
Switch - Front Upper Wiper B-5
8
Motor - Front Upper Washer F-6
15
Switch - Fuel Pressure B-13
D
Motor - Front Upper Wiper D-4
B
Switch - Head/Tail Lamp E-8
8
Motor - Rear Washer F-6
B
Switch - Headlamp Dimmer D-9
D
Motor - Rear Wiper B-11
20
Switch - Hydraulic Oil Temperature C-11
5
Motor - Starter C-13
14
Switch - Inching Pedal Pressure D-15
8
Motor - Supplemental Steer F-13
C
Switch - Key Start B-9
10
Motors - Condenser B-11
B
Switch - Light Bar Low Beam E-8
10 Relay - Condenser C-11 B Switch - Monitor (EMS) Test E-8
5 Relay - Main D-14 B Switch - Panel Lamp Dimmer E-9
5 Relay - Start D-13 16 Switch - Park Brake Pressure B-12
8 Relay - Supplemental Steer F-13 21 Switch - Primary Steer F-10
E Resistor - Blower Speed A-12 C Switch - Rear Defroster B-6
E Resistor - Blower Speed E-4 C Switch - Rear Wiper A-5
E
Resistor - Blower Speed (A/C group) B-11 B Switch - Start Aid/Monitor Test E-10
E
Resistor - Blower Speed (heater group) A-11 16 Switch - Stoplamp Pressure A-2
B
Resistor - Panel Lamp Dimmer E-9 B Switch - Supplemental Steer Test B-8
5
Resistor - Starter/Diagnostic C-14 B Switch - Tail Lamp D-8
7
Sender - Articulation C-12 B Switch - Turn Signal D-9
11
Sender - Engine Coolant Temp (gauge) A-1
12
Sender - Fuel Level A-13
Machine locations are repeated for components located close together.
A = Operator’s compartment (Dash).
B = Operator’s compartment (Steering console).
C = Operator’s compartment (Right side console).
D = Operator’s compartment (Headliner).
E = Operator’s compartment (Under seat).
COMPONENT LOCATION CHART
Related Electrical Service Manuals
Form No.
SENR4978
SENR2082
SENR4130
SENR2945
SENR6982
SENR2947
SENR3581
SENR3536
SENR4975
Title
Electronic Monitoring System
Electronic Transmission Shift Control
Consist No. 3T-6352
Consist No. 7N-9720
Consist No. 9G-4574
Consist No. 6V-5207
Consist No. 6V-5023
Consist No. 6V-5226
Alternator (6N-9294):
Starting And Charging Systems
Starting Motor: (106-8555)
Resistor, Sender and Solenoid Specifications
Part No.
Resistance (Ohms)¹
6T-2217 150.0 ± 7.5
7T-4003 10.0 ± 0.5
9G-1950
Overall 2.00 ± .10
Tap 1.00 ± .05
8T-8808 34.3 ± 1.7
104-9258 21.7 ± 2.17
7T-9073 33.6 ± 1.0
3E-7985
Start (Latch) 1.55 ± 0.15
Stop (Unlatch) 10.30 ± 1.03
7T-9074 55.17 ± 5.77
9G-4365 6.0
9W-2739 31 ± 3
¹ At room temperature unless otherwise noted.
Solenoid - Centershift
Solenoid - Start Aid
Solenoid - Transmission
Component
Solenoid - Dual Horsepower
Solenoid - Differential Unlock
Solenoid - Engine Shutdown
Solenoid - Forward Horn
Resistor - Starter/Diagnostic Conn
Resistor - Power
Resistor - Blower Speed
Off Machine Switch Specification
Part No.
Function
Actuate
Deactuate
Contact Position
2M-9346 Stop Lamp Pressure
45.0 kPa Max
(6.5 psi Max)
5.0 kPa MIN
(0.5 psi MIN)
Normally Open
3E-2033 Brake/Park Brake Air Pressure
640 kPa MAX
(92.0 psi MAX)
530 ± 40 kPa
(77.0 ± 6.0 psi)
Normally Open
8N-1693 Engine Coolant Temp (start aid)
37.8 ± 2.8°C
(100 ± 5°F)
26.7°C MIN
(80.0°F MIN)
Normally Closed
8T-8640 Primary Steering Pressure
1206kPaMAX
(175 psi MAX)
700±50kPa
(100 ±7 psi)
Normally Closed
8T-9705 Hydraulic Oil Temperature
82.22 ± 2.78°C
(180 ± 9°F)
74°C MIN
(165°F MIN)
Normally Closed
9W-3187 Fuel Pressure
93.0±20.8kPa
(13.5 ± 3.0 psi)
69± 21 kPa
(10 ± 3 psi)
Normally Closed
9X-0378 Engine Oil Pressure
62.0 kPa MAX
(9.0 psi MAX)
38 ± 20 kPa
(5.5 ± 3.0 psi)
Normally Open
111-7088 Inching Pedal Pressure
75.0 kPa MAX
(10.9 psi MAX)
50.0 kPa MIN
(7.3 psi MIN)
Normally Open
114-5334 Refrigerant Pressure (A/C)
275 to 1750kPa¹
(40 to 255 psi)
-
-
Normally Open ²
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.
1
9
9
2
2
6
3
4
2
2
2
3
3
3
4
7
8
8
5
6
2
2
7
6
6
10
4
4
6
8
8
2
4
SENR6931
March 1995
12H, 140H And 160H
Electrical System
9EJ1-UP
2ZK1-UP
3GM1-UP
4XM1-UP
8MN1-UP
9TN1-UP
9ZN1-UP
2WR1-UP
Motor Graders (NA Version)
©
1995 Caterpillar
All Rights Reserved
Printed in U.S.A.
L7
L36
T
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3
2
C
2
2
1
1
4
1
7
6
5
1
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1
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3
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7
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15 14 13
15 14
2
13
12 11 10
A
4
8
7
2
3
6
1
6
3
5
7
4
5
2
1
2
1
1
9
5
3
4
6
8
7
10
1
12
B
9
5
3
7
2
2
6
5
3
2
1
4
10
11
4
6
8
10
1
2
2
5
2
5
7
9
3
4
6
8
1
10
9 8 7
9
2
8
1
2
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
1
L
TRANS SPD SENDER
104-6387
710-GN
202-BK
L69
200-BK
608-GN 608-GN
200-BK
608-GN
A/C REFRIGERANT SW
114-5334
NOTE A
L
H
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
MOTOR
116-4531
SUPPLEMENTAL
STEERING
RELAY
3E-0154
301-BU
302-OR
RESISTOR
6T-2217
SUPPLEMENTAL
STEERING
3E-5184
3T-3964
462-YL
727-GN
200-BK
101-RD-4
G
RD-0 RD-0
MOTOR
201-BK
405-GY
BK
BK
413-BR
FUEL
SW
9W-3187
406-PU
201-BK
200-BK
5
16
17
3
7
2
9
1
12
8
6
4
13
10
11
15
18
19
20
14
S
T
109-OR-10
200-BK
T
608-GN
BK
BK
1
2
122-BU-14
200-BK
1
2
BK
BK
AIR DRYER
8W-3087
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
326-PU
200-BK-10
200-BK
200-BK
301-BU-10
306-GN
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
RD-00
BK-00
112-PU
112-PU-4
1
301-BU
304-WH-10
200-BK
795-YL
101-RD
101-RD-4
200-BK-4
200-BK
136-GN
308-YL
200-BK
200-BK
728-BU
403-GN
903-GY
ALTERNATOR
BREAKER
2H-1507 STD
9S-0174 ATCH
9S-4693 ATCH
902-BR
60A
901-WH
921-WH
BK-6
900-PU
755-OR
754-BU
752-YL
122-BU-14
200-BK
200-BK
921-WH
751-GN
2
1
403-GN
450-YL
202-BK
WH
BK
REAR
FRAME
ENGINE
OIL SW
9X-0378
T
311-WH
310-PU
1
2
COOLANT SW
8N-1693
BK-18
BK-18
START AID
SOLENOID
9G-4365
NOTE F
FUEL LEVEL
SENDER
120-9588
513-OR
597-PU
GN-18
BK-18
447-PK
200-BK
G
1
2
ENGINE SPEED
SENSOR
3E-7886
COOLANT TEMP
SWITCH
7N-9785
COOLANT TEMP
SENDER
7N-8532
1
2
1
2
AIR CONDITIONER
CLUTCH SOL
7T-8600
522-WH
513-OR
STARTER
106-8555
109-OR-4
109-OR
200-BK
606-GY
614-PU
604-OR
604-OR
614-PU
606-GY
321-BR
200-BK
200-BK
727-GN
417-GY
1
2
301-BU-10
304-WH-10
GND
START
STOP
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
441-OR
604-OR
614-PU
200-BK
RD
WH
BK
REAR FLOOD
LAMP
9X-6775
TURN LAMP
7X-6066
STOP/TAIL
LAMP
8C-6207
RD
BK
606-GY
200-BK
DISCONNECT SW
7N-0718
308-YL
308-YL
200-BK
RD-0
101-RD-4
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
RD-00
112-PU-4
BK-00
ENGINE
200-BK-4
BK-00
BK-00
12V BATTERY
3T-5760 STD
9X-9721 ATCH
G S
MTR BAT
MOTOR
ALT
+
R
NEGPOS
NEG POS
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
608-GN
200-BK
REAR FLOOD
LAMP
9X-6775
T
S
JJ
JJ
107-WH
200-BK
327-PK
306-GN
200-BK
200-BK
200-BK
200-BK
W
W
L71
L71
L71 L71
L71
INCHING PEDAL
PRESSURE SW
(TRANSMISSION)
111-7088
BK
BK
F
202-BK
758-GN
758-GN
202-BK
278-BK
278-BK
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
619-GN619-GN
200-BK
200-BK
614-PU
614-PU
614-PU
G
609-YL
L46
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
D
200-BK
K
K
L
S
S
200-BK
200-BK
200-BK
S
S
S
107-WH
S
B
B
B
B
B
B
L66
597-PU
522-WH
795-YL
795-YL
597-PU
J
441-OR
413-BR
406-PU
101-RD-14
L35
L65
J
L16
L13
405-GY
200-BK
327-PK
A429-YL
326-PU
450-YL
202-BK
L30
L35
L65
L12
L16
201-BK
L13
201-BK
B
B
B
B
B
B
B
201-BK
311-WH
B
B
B
B
B
B
B
522-WH
SHIFT CONSOLE
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
601-GY
601-GY
601-GY
112-PU-10
101-RD-4
601-GY
165-YL
169-PK
619-GN
611-PU
606-GY
605-YL
605-YL
606-GY
611-PU
619-GN
321-BR
604-OR
601-GY
597-PU
522-WH
308-YL
202-BK
200-BK
326-PU
K
201-BK
795-YL
Y310-PU
306-GN
310-PU
105-BR
311-WH
467-WH
409-OR
467-WH
409-OR
311-WH
109-OR
24 TO 12 VOLT
CONVERTER
3E-8645
112-PU
EE
EE
308-YL
306-GN
304-WH
EE
EE
101-RD
310-PU
308-YL
Y
592-BU
113-OR
113-OR
310-PU
308-YL
306-GN
113-OR
439-YL
105-BR
A513-PK
102-BU
10A
603-PK
200-BK
200-BK200-BK
BEACON
9X-9556
BEACON SW
9X-9639
601-GY
200-BK
OPEN ROPS BEACON ATCH
101-RD
BEACON FUSE
Y
Y
311-WH
200-BK
105-BR
B
B
C
C
C
200-BK
727-GN
462-YL
326-PU
105-BR
522-WH
597-PU
795-YL
202-BK
327-PK
450-YL
406-PU
441-OR
201-BK
200-BK
447-PK
608-GN
403-GN
306-GN
310-PU
308-YL
Y
C
405-GY
112-PU-4
Y
200-BK
101-RD-4
C
C
105-BR
326-PU
326-PU
308-YL
306-GN
403-GN
200-BK
200-BK
200-BK
10
107-WH
326-PU
306-GN
327-PK
200-BK
107-WH
OFF
OFF (KEY)
RESET
605-YL
606-GY
310-PU
608-GN
614-PU
605-YL
605-YL
101-RD-14
113-OR
ENG SOL
GROUND
419-YL
+ BATTERY
608-YL
7
405-GY
6
5
4
403-GN
413-BR
447-PK
3
2
1
OR-18
WH-18
419-YL
201-BK
YL-18
ENGINE SHUTDOWN
CONTROL
9G-9287
BU-18
BK-18
Z
C
RD-18
403-GN
200-BK
728-BU
136-GN
126-PK
308-YL
PARK BRAKE
PRESS SW
3E-2033
PARK BRAKE
SOLENOID
7T-9074
GN
GN
BK-18
200-BK
BK-18
7
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
165-YL
L
L
L
L
L
L
200-BK
577-PU
576-PK
575-YL
CUSHION
BLADE SW
9X-9629
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
521-YL
592-BU
200-BK
A513-PK
102-BU
+12V MEMORY
+24V IN
200-BK
113-OR+ BATTERY
GROUND
GROUND (RADIO)
+12V RADIO
122-BU-14
124-GN
113-OR
136-GN
126-PK
130-GN
134-YL
105-BR
RESISTOR
3T-3123
373-GN
334-BU
L
608-GN
609-YL
2
5
1
3
4
6
200-BK
W
P
B
601-GY
503-BR
629-PK
614-PU
2
115-PK
103-YL
1
200-BK
B
L
W
H
P
B
507-WH
3
601-GY
200-BK
601-GY
415-GN
308-YL
119-PK
B899-OR
202-BK
165-YL
201-BK
921-WH
119-PK
903-GY
592-BU
118-GY
201-BK
441-OR
406-PU
450-YL
450-YL
A513-PK
506-PU
578-BU
507-WH
575-YL
577-PU
576-PK
152-BU
101-RD
L71
200-BK-14
597-PU
521-YL
122-BU-14
GGGG
54
3 1
200-BK-14
CONDENSER
RELAY
3T-2170
CONDENSER
MOTOR
7X-6279
CONDENSER
MOTOR
7X-6279
902-BR
901-WH
900-PU
755-OR
754-BU
597-PU
752-YL
521-YL
751-GN
112-PU-10
601-GY
605-YL
606-GY
611-PU
619-GN
200-BK
122-BU-14
200-BK-14
593-GN-14
200-BK-14
593-GN-14
597-PU-14
521-YL-14
308-YL
200-BK
GG
WH/RD-14
WH/RD-14
326-PU
L
BK-14
307-OR
601-GY
105-BR
169-PK
614-PU
570-BU
169-PK
200-BK
629-PK
415-GN
126-PK
307-OR
321-BR
DIA CODE 2
202-BK
201-BK
P
P
200-BK
200-BK
J
310-PU
DIA CODE 1
L64
BK-14
GG
CONDENSER GP-ROOFTOP 103-8519
L
200-BK
601-GY
144-GN
200-BK
MM
AFFFF
603-PK
3
4
2
1
118-GY
619-GN
619-GN
406-PU
606-GY
441-OR
201-BK
611-PU
611-PU
447-PK
413-BR
619-GN
608-GN
310-PU
101-RD
200-BK
202-BK
570-BU
405-GY
200-BK
611-PU
619-GN
605-YL
606-GY
410-WH
201-BK
A429-YL
710-GN AND 202-BK
ARE TWISTED PAIR
727-GN
CONN B
CONN A
WITH SUPPLEMENTAL
STEERING SWITCH CONN'S
A, B
417-GY
462-YL
611-PU
P
202-BK
P
600-BR
ACTION ALARM
9G-9813
165-YL
522-WH
308-YL
B751-BU
326-PU
307-OR
BK
BK
BK
B
B
BK
DUAL HORSEPOWER/SHUTDOWN
SOLENOID
3E-6424
NOTE G
B751-BU
105-BR
134-YL
BRAKE AIR SW
3E-2033
BK-18
102-BU
570-BU
Q
417-GY
B+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
BK-0
BK
WH
WH/BK
L60
GY
GY/BK
YL-18
L51
L69
GN-18
RD
BK
ST
ON
OFF
BRAKE AIR SW
3E-2033
B
200-BK
629-PK
306-GN
795-YL
S
449-BU
L61
L48
L69
L69
202-BK
K
C
R
L69
U
K
CENTERSHIFT
PIN SW
9X-9634
L62
BK-18
605-YL
SUPP STER
TEST SW
9X-9633
619-GN
611-PU
L62
200-BK
RD-18
118-GY
AIH
TIMER
4Y-7948
118-GY
321-BR
U
U
U
L62
BK-18
200-BK
200-BK
200-BK
20 INCH PEDAL
200-BK
202-BK
334-BU
U
U
L68
U
U
U
126-PK
U
U
U
L68
L61
L61
U
U
L61
L60
L60
L60
L48
L48
L48
L46
L46
L51
200-BK
200-BK
200-BK
892-BR
L51
L51
L50
L50
L63
L63
L63
L63
L50
L50
L51
L61
L62
L68
L68
L60
Q
L52
L52
L49
L49 L49
L49
L49
L48
L48
L48
L48
L58
L58
L67
L67
L67
L57
L57
L56 L56
L56 L56
L55
L55
L55
L55
L55
L60
L54 L54
L54
L54
L63
L25
L13
L13
L16
2
L16
202-BK
276-BK
277-BK
L16
G
200-BK
L44
K
L44
977-YL
7
6
373-GN
124-GN
601-GY
165-YL
893-GN
B751-BU
L61
601-GY
200-BK
116-BR
RED NEUT
601-GY
3
570-BU
1
160-PU
200-BK
169-PK
202-BK
202-BK
202-BK
K
L75
334-BU
160-PU
J
601-GY
L61
L61
103-YL
200-BK
202-BK
U
6
U
4
14
13
12
11
10
9
8
7
L72
6
5
4
3
202-BK
2
1
15
16
17
18
19
20
21
22
L38
23
24
TRANSMISSION DIRECTION
AND SPEED SHIFTER SW.
8C-5340
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
FIRST
GROUND
EIGHTH
SECOND
L72
THIRD
FOURTH
FIFTH
200-BK
601-GY
L72
200-BK
L72
SIXTH
SEVENTH
E943-BR
L72
FORWARD
REVERSE
L72
PARK
NEUTRAL
E937-PU
202-BK
3
E938-OR
608-GN
E939-WH
E940-BU
E941-YL
1
PANEL LAMP
(SHIFT LEVER)
7N-5876
5
E942-GN
E944-GY
E945-PU
E946-OR
E947-WH
E948-BU
E949-YL
2
200-BK
200-BK
462-YL
404-YL
614-PU
410-WH
201-BK
201-BK
200-BK
A429-YL
HEADLAMP/
TAIL SW
3E-9317
201-BK
200-BK
ARTICULATION
SENDER
3E-5383
L37
A
A429-YL
200-BK
202-BK
202-BK
404-YL
201-BK
8T-9705
HYD OIL
TEMP SW
3E-9169 DIODE AS.
201-BK
900-PU
439-YL
113-OR
200-BK
3
1
2
L45
410-WH
201-BK
2
609-YL
522-WH
L45
597-PU
Y
710-GN AND
202-BK ARE
TWISTED PAIR
2
795-YL
112-PU-8
112-PU-10
101-RD-4
1
306-GN
101-RD-4
A
112-PU-10
112-PU-8
200-BK
L75
SHUTDOWN
SOL
3E-7985
601-GY
101-RD
MATE WITH BEACON
HARNESS "W"
U
2
3
L75
200-BK
200-BK
601-GY
134-YL
200-BK
601-GY
SPARE
SHUTDOWN CNTRL
727-GN
1
326-PU
310-PU
202-BK
710-GN
903-GY
902-BR
200-BK
A429-YL
H
728-BU
755-OR
754-BU
136-GN
E975-PU
G
921-WH
752-YL
3
901-WH
101-RD
115-PK
112-PU-8
102-BU
101-RD
12V RADIO
3E-7140
Y
751-GN
200-BK-10
A507-YL
200-BK
RD
BK
403-GN
601-GY
102-BU
415-GN
200-BK-10
176-OR-14
Y
308-YL
322-GY
114-GN
605-YL
606-GY
614-PU
611-PU
619-GN
601-GY
176-OR-14
TRANSMISSION CONTROL
106-4458
G
6
5
NOTE F
10
START AID
EMS TEST SW
9X-9628
L65
609-YL
200-BK
403-GN
200-BK
2
629-PK
L65
601-GY
5
202-BK
977-YL
608-GN
200-BK
605-YL
606-GY
1
601-GY
3
200-BK
200-BK
603-PK
108-BU
200-BK
L65
DOME LAMP
8C-9678
101-RD-10
200-BK
504-YL
119-PK
503-BR
505-BU
603-PK
A504-GN
A507-YL
556-WH
BLOWER
9X-0343
B751-BU
PP 115-4599 02 (EEC SOCKET)  231 ATCH
604-OR
556-WH
L75
122-BU-14
605-YL
606-GY
614-PU
L75
439-YL
KEY START SW
9G-7641
200-BK
321-BR
604-OR
601-GY
504-YL
119-PK
503-BR
505-BU
202-BK
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
F769-BU
L35
202-BK
113-OR
LO
MOTOR
T
BK
L35
L45
A513-PK
592-BU
200-BK
508-PU
509-WH
511-BR
512-GN
113-OR
DEFROSTER
9X-9657
MOTOR
3
2
1
BK
YL
WH
601-GY
L35
L35
A
4
556-WH
6
SERVICE
METER
6T-7337
200-BK
L66
L67
L52
L52
L52
L52
L60
L60
L58
L58
L58
L57
L57
L54
L54
L55
L55
L56
L56
L51
L51 L51
L44
L63
L25
L38
L7
L37
L37
L37
L37
L36
L36
L37
L36
L61
L61
L61
3
L41
L41
L41
L41
L41
L41
L41
L20
L20
L45
L37
L12
L12
L66
L66
L32 L32
L32
L35
L30
L30
L30
L30
L28 L28
L34
L6
L6
L29
L29
L29
L40
L76
L27
L27
L27
L27
L27
L65
L65
L65
L11
L11
2
1
8
7
2
1
8
7
L20
L44
L76
L63
L25
L38
L7
L36
L7
L25
L25
L34
L34
L35
L35
L35
L23
L36
L36
L38
322-GY
TURN SIGNAL
SW
9G-5589
2
1
PANEL LAMP
DIMMER SW
3E-9318
L38
122-BU-14
L26
L26
124-GN
L27
200-BK
L27
200-BR
113-OR
601-GY
200-BK
L76 L76
113-OR
136-GN
600-BR
A513-PK
200-BK
601-GY
601-GY
512-GN
126-PK
511-BR
592-BU
L76
614-PU
608-GN
L76
200-BK-8
BK-18
584-YL
584-YL
165-YL
4K-5122 HOLDER AS.
3K-8782 FUSE
601-GY
200-BK
200-BK
113-OR
A513-PK
169-PK
116-BR
149-PU
103-YL
10
173-YL
308-YL
200-BK
L76
403-GN + -
J
NOTE K
L26
130-GN
200-BK
134-YL
122-BU-14
114-GN
L27
L28
105-BR
TAIL LAMPS
TURN SIGNALS
J
450-YL
449-BU
L28
L75
L39
200-BK
STOP LAMPS
SUPP STEER
HORN
308-YL
L39
L40L40
AIR DRYER
NOTE J
126-PK
KEY SW
AIR CNDTR
GAGES
SUPP STEER
2
1
2
L40
556-WH
XSMN CNTRL
L40
L40
L39
L40
DIFF LOCK
BLADE CNTRL
REAR FLOODS
556-WH
BLADE FLOODS
614-PU
1
2
619-GN
160-PU
200-BK
STRAP
4 GA STD
1/0 ATCH
308-YL
OPERATOR MONITOR 9X-7801
REAR
FRAME
L43
L43
728-BU
200-BK
L43
3
2
1
L43
LAMP
UNUSED
UNUSED
PRIMARY
STEER SW
8T-8640
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
6
3
105-BR
202-BK
606-GY
101-RD-10
LIGHTBAR
LOW BEAM
BREAKER
3T-2662
HEADLAMP
BREAKER
3T-2662
10A
201-BK
15A
15A
FLASHER
108-0358
L43
L42
L42
L44
L44
619-GN
201-BK
441-OR
450-YL
403-GN
419-YL
405-GY
406-PU
413-BR
447-PK
201-BK
201-BK
417-GY
606-GY
605-YL
408-WH
201-BK
80A
STARTING AND CHARGING
DIAGNOSTIC CONNECTOR
RESISTOR
7T-4003
160-PU
308-YL
537-GN
BU
RD
BK
BEACON
9X-9556
BULB
9X-7849
GY/BK
11
18
14
2
9
8
7
19
17
10
12
4
13
6
5
A
15
GY
3
467-WH
417-GY
410-WH
485-YL
419-YL
404-YL
408-WH
409-OR
WH/BK
WH
BK
M
Y
RD
1 4
5
6
2
3
611-PU
L19
L6
HEADLAMP DIMMER SW
103-5678
L6
149-PU
L16
L13
601-GY
L11
FLOOD
LAMPS
9X-9632
200-BK
977-YL
1
2
601-GY
RD
ANTENNA
9W-3072
CABLE AS.
9X-3073
YL
L12
L32
B+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
758-GN
16
FUSE BLOCK
9G-0747
200-BK
20
202-BK
200-BK
24V RADIO
9X-6779
5
200-BK
2
REAR WIPER
9X-3392
4
5
513-OR
1
2
G
710-GN AND 202-BK ARE TWISTED PAIR
15A
EMS TEST SW
106-2477
10A
10A
4
10A
10A
L32
10A
10A
10A
L32
126-PK
2
10A
10A
10A
10A
HORN SW
8W-1957
10A
10A
10A
10A
10A
200-BK
200-BK
200-BK
L21
126-PK
L21
L21L21
L62
L10
L63
L63
L22
L19
L19
L19L62
L5
L5
L20
L20
L23
L23
L23
L21
L21
L21
L18
L18
L18
L18
DIFFERENTIAL
UNLOCK SW
123-5862
L18
L7
L7
L7
L7
LIGHT BAR
LOW BEAM
9X-9631
L7
L7
L62
L62 L62
L62
L6
L16
L16
L15
L14
L14
L14L14
L13
L13
L11
L11
L11
L12
L10
L10
L10
L10
L10
L10
L1
L1
L2
L2
L22
L15
L15
L15
L7
L7
L6
L6
488-WH
L5
L2
L2
L1L1
B
L76
E975-PU
E975-PU
M
F
M
AIH LAMP
7N-5876
NOTE K
200-BK
A506-OR
A503-PK
200-BK
2
200-BK
200-BK
FRONT LOWER
WIPER SW
3T-6655
F769-BU
200-BK
4
200-BK
1
200-BK
200-BK
556-WH
417-GY
A
A
L22
F769-BU
758-GN
200-BK
160-PU
449-BU
160-PU
E975-PU
334-BU
L75
200-BK
C
E975-PU
BK-18
450-YL
201-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
118-GY
152-BU
200-BK
200-BK
119-PK
141-PK
601-GY
601-GY
601-GY
601-GY
151-GN
108-BU
144-GN
A503-PK
A506-OR
601-GY
601-GY
601-GY
601-GY
601-GY
12V BATTERY
3T-5760 STD
9X-9721 ATCH
9
584-YL
L72
2
151-GN
5
277-BK
276-BK
411-PK
201-BK
200-BK
200-BK
200-BK
200-BK
- +
200-BK
200-BK
200-BK
556-WH
200-BK
200-BK
E949-YL
-
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
1
201-BK
584-YL
200-BK200-BK
WITH 103-8519 ROOFTOP CONDENSER GP., REMOVE
JUMPER KK AND MATE HARNESS FF TO
HARNESS A
601-GY
3
200-BK-6
202-BK
4
A504-GN
6
A507-YL
200-BK
604-OR
130-GN
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
GND
605-YL
606-GY
611-PU
619-GN
PARK
B+
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
108-BU
200-BK
200-BK
200-BK
BK
BK
101-RD
FRONT UPPER
WIPER SW
3T-6655
BEACON SW
9X-9639
KK
E948-BU
511-BR
512-GN
A513-PK
592-BU
200-BK
511-BR
512-GN
509-WH
508-PU
101-RD
E947-WH
152-BU
E946-OR
SOCKET AS.
9R-7941
200-BK
200-BK
556-WH
308-YL
326-PU
200-BK
200-BK
200-BK
4
CAB
GROUND
606-GY
605-YL
611-PU
619-GN
114-GN
322-GY
BLOWER
9X-0343
DEFROSTER
9X-9657
201-BK
201-BK
201-BK
508-PU
509-WH
LEFT SPEAKER
6T-7695
A506-OR
200-BK
201-BK
201-BK
201-BK
FRONT LOWER
WIPER
9X-3392
576-PK
152-BU
575-YL
577-PU
MOTOR
MOTOR
501-GN
118-GY
500-BR
502-OR
DIA CODE 0
RESISTOR
7T-4003
RD
BK
108-BU
A503-PK
A506-OR
152-BU
576-PK
575-YL
577-PU
629-PK
609-YL
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
202-BK
+BATTERY
40
39
38
37
36
35
34
33
BK
200-BK
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
601-GY
BK
113-OR
FRONT
FRAME
32
31
30
MOTOR
29
28
UPPER WIPER/WASHER
LOWER WIPER/WASHER
REAR WIPER/WASHER
FRONT DEFROSTER
REAR DEFROSTER
DOME LAMP
BEACON
10A
10A
10A
10A
10A
10A
10A
1
2
B
6
L
H
27
26
4
3
119-PK
200-BK
25
502-OR
W
W
W
601-GY
144-GN
3
601-GY
200-BK
WH-18
1
5
+
-
24V TO 12V CONVERTER
(119-1733)
IGNITION
12V OUT
GROUND
+
-
MOTOR
24V IN
112-PU
112-PU
LOCALIZED
GROUND
STUD
112-PU
112-PU
592-BU
112-PU
101-RD
2
L
501-GN
113-OR
FRONT UPPER
WIPER
9X-3392
24
403-GN
201-BK
200-BK
23
22
21
122-BU-14
500-BR
18
17
16
101-RD
200-BK
15
14
2
13
OPERATOR STATION
BK-18
K
201-BK
12
11
404-YL
201-BK
10
8
5
413-BR
200-BK-6
4
449-BU
3
1
2
7
E945-PU
467-WH
E944-GY
K
L44
L71
L71
J
J
200-BK
PP
PP
A506-OR
K
113-OR
113-OR
K
A
J
J
J
CIRCUIT GROUPING
DESIGNATION
200-BK
H
200-BK
310-PU
406-PU
609-YL
727-GN
609-YL
405-GY
609-YL
200-BK
200-BK
200-BK
795-YL
DUAL HORSEPOWER
SOLENOID
104-9258
NOTE H
727-GN
E943-BR
321-BR
E942-GN
614-PU 614-PU
614-PU614-PU
614-PU 614-PU
306-GN
727-GN
E941-YL
307-OR
E940-BU
126-PK
E939-WH
462-YL
202-BK
614-PU
449-BU
E938-OR
200-BK
200-BK
200-BK
409-OR
G
202-BK
PARK
REVERSE
FORWARD
200-BK
200-BK
200-BK
200-BK
200-BK
2
3
TAIL
LAMP SW
3E9319
200-BR
614-PU
101-RD
601-GY
103-YL
G
NOTE K: AIR INLET HEATER IS NOT AVAILABLE ON THESE
MODELS
FORWARD
HORN
SOLENOID
7T-9074
EIGHTH
SEVENTH
SIXTH
FIFTH
FOURTH
THIRD
403-GN
200-BK
200-BK
200-BK
M
SECOND
FIRST
M
M
A
A
1
A
M
113-OR
RED NEUTR
CAT LINK +
(N) NEUT
BUFF TOS
A/M SWITCH
GROUND
NEUTRAL
SERVICE
TOOL
CONNECTOR
9W-1951
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
GRD
SEND
IGN
GRD
SIG
IGN
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
B
606-GY
200-BK
113-OR
M
M
M
M
450-YL
ARTICULATION
113-OR
200-BK
727-GN
462-YL
WH-18
V F
B
A
TOS + INP
9
E937-PU
893-GN
892-BR
449-BU
200-BK
614-PU
E
L#
J
J
J
A
200-BK
A
A
JJ
201-BK
BBAA
J
A
J
A
200-BK
J
200-BK
AJ
AA
710-GN
A
B
B
327-PK
200-BK
AA
AA
AA
K
K
K
P
P
P
Q
T
T
D
K
K
K
CC
T
A
A
Q
P
A
A
K
Q
P
P
P
A
A
A
K
K
K
A
PP
A
A
K
K
A
CCA
A
ZZZZ
L
L
KK
A
K
K
LH
DIFFERENTIAL
UNLOCK SOLENOID
7T-9073
U
U
A
1
2
U
GN
GN
A
U
A
W
202-BK
710-GN
W
1
2
556-WH
105-8827 DIODE AS.
J
JNN
A
A
K
K
A
C
H
H
VV
FUSE BLOCK
9G-0747
VV
A
AE
H
H
H
A
200-BK
C
101-RD-4
WW
QQ
LL
UU
UU
105-BR
C
A
W
C
AC
Y
Y
Y Y
311-WH
107-WH
101-RD-14
1
2
Y
Y
200-BK
J
103-YL
B
PP
200-BK
BB
Y CONN. B
200-BK
Y
109-OR-4
Y CONN. A
B
HHDD
YHH
WH-18
D
D
B
SS
SSRR
QQ
RRTT
TT
311-WH
109-OR-4
201-BK
200-BK
BATTERIES 9X-9721 MUST BE USED WITH
SUPPLEMENTAL STEERING CONTROL
G
NOTE D:
200-BK
605-YL
606-GY
611-PU
200-BK
200-BK
619-GN
F
G
611-PU
605-YL
200-BK
200-BK
200-BK
619-GN
F
C
619-GN
611-PU
606-GY
611-PU
606-GY
619-GN
200-BK
1
2
200-BK
629-PK
A
200-BK
629-PK
C
Z
Z
XX
XX
YY
B
YY
WW
413-BR
Y
977-YL
A
19
V
F
N
N
N
N
3K8782 FUSE (10A)
8M8948 FUSE (15A)
8M0456 FUSE (20A)
N
N
B
E
202-BK
8T-9722
7V-8390
6D-4162
6D-4161
HH
SHELL
SPRING
BUSHING
CONTACT
DD
N
N
D
727-GN
E
D
D
D
601-GY
V 104-8588  01 (TRANS SPEED SENDER) 271
W 101-8200  01 (BEACON-OPEN ROPS) 184 ATCH
X 117-8567  00 (CONDITIONER GP-B) 150 ATCH
X 117-8567 00 (HEATER GP) 154 ATCH
Y 101-8172  05 (FUEL TANK)  230
Z 101-8185  01 (SUPPLEMENTAL STEERING) 260 ATCH
CENTERSHIFT
SOLENOID
8T-8808
QQ 111-0871 00 (POS BAT TO START MTR) 210
RR 110-6398 00 (NEG BAT/DISCONNECT SW) 211
SS 110-6399  01 (DISCONNECT SW TO GND) 212
TT 3W-3620  00 (NEG BAT TO POS BAT) 213
TT 108-3570  00 (NEG BAT TO POS BAT)  213 ATCH
UU 061-7661 03 (START MTR TO FRAME GND) 214
VV 7G-1060  00 (GND-R FRAME TO F FRAME) 204
VV 8X-9618  01 (GND-R FRAME TO F FRAME) 204 ATCH
WW 101-8202  01 (START MTR/STR RELAY) 261 ATCH
XX 101-8204  01 (STEERING MTR TO GND) 262 ATCH
YY 101-8203  01 (STR RELAY TO STR MTR) 263 ATCH
ZZ 1S-2342  02 (GND-F FRAME TO CAB) 105
AA 101-8197  01 (HEADLAMP BREAKER) 141
BB 101-8196  01 (LOW BEAM BREAKER-BAR) 142 ATCH
CC 101-8190  02 (BLADE FLOOD LAMP) 106 ATCH
DD 101-8192  01 (REAR FLOOD LAMP) 205 ATCH
EE 112-0829  01 (2-WAY RADIO CONVERTER) 208 ATCH
FF 8X-9091  03 (CONDENSER GP-CAB) 151 ATCH
GG 103-8519  01 (CONDENSER GP-ROOFTOP) 152 ATCH
HH 101-8193  03 (REAR FLOOD LMP-FUEL TNK) 206 ATCH
JJ 108-2302  01 (ENGINE SHUTDOWN CNTRL) 207
KK 4E-8715  00 (CONDENSER JUMPER) 155
1
2
B751-BU
200-BK
NOTECHG
ATCH WIRE, CABLE &
COMPONENT
CABLE AS.
GN
GN
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
LOC
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
WIRE AS.
HARNESS AS.
522-WH
200-BK
521-YL
124-GN
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
G
614-PU
308-YL
SPEEDOMETER
110-2338
NOTE F: USE 9X-9628 SWITCH WITH ETHER START
AID ATTACHMENT.
NOTE G: USE 3E-6424 DUAL HORSEPOWER/SHUTDOWN SOLENOID
WITH FUEL AIR RATIO CONTROL
NOTE H: 140HNA ONLY
NOTE F
BASE
7G-9730
PANEL LAMP
8D-1429
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
THIS IS THE SCHEMATIC FOR THE 140H NA AND
160H NA AND 12H NA MOTOR GRADER
B
PART NO.
UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE
ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAGE
AND XMSN SHIFTER IN NEUTRAL
308-YL
IDENT
200-BK
601-GY
373-GN
373-GN
308-YL
200-BK
113-OR
200-BK
NOTE J: USE 20A FUSE WHEN ATTACHMENT AIR CONDITIONER
(HEATS AND COOLS) WITH ROOF TOP CONDENSER
IS PRESENT
BLUE
202-BK
WH/RD-14
BK-14
200-BK
2
1
462-YL
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
200-BK
200-BK
570-BU 570-BU
200-BK
1
2
112-PU-10
101-RD-4
101-RD-10
1
2
606-GY
200-BK
LO BEAM
HEADLAMP
9X-7169
629-PK
200-BK
LO BEAM
HEADLAMP
9X-7169
606-GY
605-YL
611-PU
619-GN
200-BK
629-PK
200-BK
1
2
629-PK
200-BK
6R
5R
4R
CONNECTOR
REAR
WIPER SW
3T-6655
3R
GN
GN
1
2
3
4
GN
GN
2R
1R
8F
601-GY
7F
6F
5F
4F
5
3F
2
SYMBOL
2F
1F
DESCRIPTION
BROWN
PURPLE
GRAY
BLACK
N
PARK
COLOR
1
ABBREV
PINK
200-BK
601-GY
STOP LAMP
SW
2M-9346
WITH 8C-9788 COND. GP.,
CONN. A MATES TO CONN. B
WITH 8C-9787 HEATER GP.,
CONN. A MATES TO CONN. C
200-BK
CONN. C
CONN. B
CONN. A
200-BK
YELLOW
HEATER GP 8C-9787
BK
200-BK
601-GY
1
614-PU
2
5
1
2
4
3
BLADE
CUSHION
SOLENOIDS
7T-6517
570-BU
200-BK
439-YL
113-OR
307-OR
MASTER
ACTION
LAMP
9W-2111
NOTE B
2
1
WH/RD-14
BK-14
U
U
307-OR
L34
U
15A
NOTE E: POWER LEADS FOR 2-WAY FM COMMUNICATION
RADIO SHOULD BE SIZE 10 AWG
PANEL LAMP
8D-1429
202-BK
BASE
7G-9730
CONNECT CONN. A TO
CONN. B WHEN USING
STARTING/CHARGING
ANALYZER WITHOUT
START AID
ATTACHMENT
2
THERMOSTAT
SW
9X-5445
3
RESISTOR
9G-1950
BLOWER SW
6P-3236
113-OR
X
124-GN
521-YL
515-GY
516-GN
517-BU
CONDITIONER GP-B 8C9788
U
977-YL
7
411-PK
201-BK
WH-18
450-YL
A/M LAMP
449-BU
SOLE RETN
606-GY
SOLENOID 8
605-YL
SOLENOID 7
614-PU
SOLENOID 6
202-BK
202-BK
(NOTE E)
L42
515-GY
200-BK
BLOWER
9X-9363
3
5
1
4
2
X
AIR INLET
HEATER SW.
115-1969
NOTE K
CENTERSHIFT
INDICATOR SW
3E-9367
X
SOLENOID 5
SOLENOID 4
200-BK
SOLENOID 3
417-GY
SOLENOID 2
467-WH
SOLENOID 1
409-OR
EMS OUT
408-WH
404-YL
DUAL HP
419-YL
6
201-BK
8
410-WH
U
200-BK
A429-YL
439-YL
101-RD-10
201-BK
413-BR
406-PU
405-GY
113-OR
415-GN
447-PK
441-OR
25A CONVERTER
BREAKER
3T-2662
113-OR
403-GN
CAT LINK -
BU ALARM
START REL.
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
MM
START SW.
MM
M
7
ORANGE
WHITE
RED
130-GN
604-OR
BK
408-WH
488-WH
BR
TRANS
LAMP
7N-5876
200-BK
M
PU
GY
373-GN
408-WH
201-BK
TRANSMISSION SHIFT LEVER LOGIC TABLE:
M
E975-PU
609-YL
200-BK
RD
BK
BK
RD
1
2
2
1
601-GY
403-GN
LAMP
8D-1429
200-BK
200-BK
200-BK
1
2
114-GN
322-GY
NOTE B:
TO
GND
RIGHT SPEAKER
6T-7695
L 101-8164 03 (SW PANEL)  180
M 123-0962  00 (GAGE CONSOLE) 160
N 9U-9313 01 (TRANSMISSION) 270
P 101-8205 02 (HEADLIGHTS-BAR)  100 ATCH
Q 101-8194  02 (LOW BEAMS) 101 ATCH
S 101-8181  03 (CAB FUSE PANEL)  183
T 101-8188  02 (BLADE CUSHION)  104
U 123-6633  00 (XSMN CONSOLE-SWITCHES) 171
NOTE C:
A 122-8882 00 (PLATFORM)  120
B 101-8174 03 (ENGINE)  220
C 101-8170 02 (R FRAME-ENGINE) 200
D 101-8171 02 (RADIATOR GRILL) 203
E 101-8169 01 (R FRAME) 201
F 101-8168 01 (R FRAME-TRANS) 202
G 106-1319 03 (XSMN CONSOLE) 170
H 101-8161 02 (CAB-REAR) 182
J 123-0957 00 (STEERING CONSOLE) 140
K 101-8162 03 (CAB-FRONT) 181
1
2
3
4
5
24V OUTPUTS
570-BU
NEU
SOL
RET8
W/
AWD76
SOLENOIDS D
HPGEAR 5
B
U4
LEVEL
LL 9F4337  07 (START MTR TO ENGINE) 221
MM 6T-6962  00 (CONDENSER FAN JUMPER) 153 ATCH
NN 8W1917  00 (HORN SWITCH) 143
N
3
S
T2
201-BK
609-YL
200-BK
619-GN
200-BK
OPERATOR STATION
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
CAB TURN
SIGNAL
7X-6066
CAB HI BEAM
HEADLAMP
9X-7164
CAB LO BEAM
HEADLAMP
9X-6874
1
WH-18
1
2
619-GN
200-BK
611-PU
200-BK
LO BEAM
HEADLAMP
9X-7169
HI BEAM
HEADLAMP
9X-7170
TURN
SIGNAL
7X-6066
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
BLADE
FLOOD
LAMP
9X-6775
BLADE
FLOOD
LAMP
9X-6775
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 CIRCUIT.
TURN SIGNAL CIRCUIT.
START AID CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
CAB SWITCH/FUSE PANEL
CAB SWITCH/FUSE PANEL
INSTRUMENT PANEL
INSTRUMENT PANEL
INSTRUMENT PANEL
INSTRUMENT PANEL
L64
200-BK
STEERING CONSOLE
STEERING CONSOLE
J
STEERING CONSOLE STEERING CONSOLE
STEERING CONSOLE
STEERING CONSOLE
MOTOR
MOTOR
MOTOR
MOTOR
1
3
2
P/N 24-80000-257-02