14H MOTOR GRADER ELECTRICAL SYSTEM

©
1995 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR6933-01
August 1995
14H
Electrical System
7WJ1-UP
Motor Grader
Wire Description Chart
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits Monitoring Circuits (Cont'd.)
101 RD BAT (+) (NOT APPLICATION SPECIFIC) 415 GN OPR MON TEST SW
102 BU HD LMP 417 GY PRIMARY STER SW
103 YL AUX CKT 419 YL OPR MON PARKING BRAKE
105 BR KEY SW 441 OR ENG COOLANT TEMP GAGE
108 BU AUX CKT 447 PK FUEL LEVEL GAGE
109 OR ALT OUTPUT (+) TERM. 462 YL SUPPL STER MOTOR INDICATOR
112 PU MAIN POWER RL Y OUTPUT A429 YL ARTICULATION INDICATOR
113 OR OPR MON PANEL B+ SWITCHED
Accessory Circuits
114 GN WARNING HORN (FORWARD) 500 BR WIPER - FRONT (PARK)
115 PK AUX CKT 501 GN WIPER - FRONT (LO)
116 BR AUX CKT 502 OR WIPER - FRONT (HI)
118 GY AUX CKT 503 BR WIPER - REAR (PARK)
119 PK AUX CKT 504 YL WIPER - REAR (LO)
121 YL BCKP ALARM TO LAMP 505 BU WIPER - REAR (HI)
122 BU AUX CKT 506 PU WASHER- FRONT
123 WH AUX CKT 507 WH WASHER - REAR
124 GN A/C 508 PU RADIO SPEAKER - LEFT
130 GN AUX CKT 509 WH RADIO SPEAKER - LEFT (COMMON)
134 YL AUX CKT 511 BR RADIO SPEAKER - RIGHT
136 GN SUPPLSTER 512 GN RADIO SPEAKER - RIGHT (COMMON)
141 PK AUX CKT 513 OR A/C COMPRESSOR/REFRIGERANT PRESS. SW
144 GN AUX CKT 515 GY BLOWER MOTOR (HI)
149 PU AUX CKT 516 GN BLOWER MOTOR (MEDIUM)
151 GN AUX CKT 517 BU BLOWER MOTOR (LO)
152 BU AUX CKT 521 YL A/C SW TO REFRIGERANT SW
165 YL AUX CKT 522 WH A/C CLUTCH TO THERMOSTAT SW
169 PK AUX CKT 556 WH DIFFERENTIAL LOCK
173 YL AUX CKT 570 BU BLADE CUSHION SOL
176 OR AUX CKT 575 YL WIPER - AUX (PARK)
176 YL AUX CKT 576 PK WIPER - AUX (LO)
Ground Circuits 577 PU WIPER - AUX (HI)
200 BK MAIN CHASSIS 578 BU WASHER - AUX
201 BK OPR MON PANEL VMIS CMS 584 YL WIPER SW JUMPER
203 BK CHASSIS DIAGNOSTIC 592 BU DC/DC CONVERTER POWER OUTPUT
207 BK STARTER DIAGNOSTIC 593 GN CONDENSER FAN RELAY TO MOTORS
Basic Machine Circuits 597 PU A/C HI PRESS. COUTOUT SW TO LOW PRESS.
301 BU STARTER NO.1 SOL SW
302 OR STARTER NO.1 RESISTOR TO DIAGNOSTIC A504 GN REAR DEFROSTER FAN (LO)
304 WH STARTER RLY NO.1 OUTPUT A507 YL REAR DEFROSTER FAN (HI)
306 GN STARTER RLY COIL TO NEUT START SW OR KEY A513 PK DC/DC CONVERTER MEMORY OUTPUT
SW
Lighting Circuits
307 OR KEY SW TO NEUT START SW OR VMIS SENSOR 601 GY DASH LAMP HI
MODULE 603 PK ROTARY BEACON
308 YL MAIN POWER RLY COIL 604 OR STOP LAMP
310 PU START AID SW TO START AID SOL 605 YL TURN LAMP - LEFT
311 WH START AID SOL TO TEMP SW 606 GY TURN LAMP - RIGHT
321 BR BCKP ALARM LAMP TRAVEL ALARM 608 GN FLOOD LAMP - REAR
322 GY WARNING HORN (FORWARD) 609 YL FLOOD LAMP - SIDE
326 PU KEY SW "C" TERM. 611 PU HEAD LAMP HI
Monitoring Circuits 614 PU PARK/TAIL/DASH LAMP
GN ALTERNATOR (R) TERM. 619 GN HEAD LAMP LO
404 YL OPR MON HYD OIL TEMP 629 PK AUX HEAD LAMP
405 GY OPR MON OIL PRESS. (LO SETTING) Control Circuits
406 PU OPR MON COOLANT TEMP 727 GN SUPPL STER MOTOR RELA Y
408 WH OPR MON SYSTEM AIR PRESS. 728 BU SUPPL STER CONT SW
409 OR OPR MON NEUT B751 BU CENTERSHIFT LOCK SOL
410 WH OPR MON FAULT ALARM E773 YL CENTER SHIFT SOL - PUSH
413 BR OPR MON FUEL PRESS.
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
Y -110-6986 A -110-0798
20 Contacts Diagnostic Connector J - 109-8827
M - 101-8160 A - 110-0798
Monitor (EMS) K-101-8162
A -110-0798 7 Contacts C - 111-9663
E -111-9662 Y - 113-2694
A -110-0798 C - 111-9663
J - 109-8827 Z - 101-8185
10 Contacts A -110-0798 K - 101-8162
K - 101-8162 L - 101-8164
A -110-0798 D -101-8171
U - 109-7333 6 Contacts E - 111-9662
K - 101-8162 A - 110-0798
L - 101-8164 Voltage Converter
A -110-0798 A - 110-0798
J - 1 09-8827 J - 109-8827
A -110-0798 A - 110-0798
M - 101-8160 M - 101-8160
9 Contacts A -110-0798
E-6
A -110-0798
M - 101-8160 5 Contacts P -116-0297
M - 101-8160
F-6
A -110-0798
Gauge Cluster U - 109-7333
Z - 101-8185 B - 113-2695
Supplemental Steering C - 111-9663
A - 110-0798 U - 109-7333
C - 111-9663 AC/Heater Unit
A - 110-0798 A - 110-0798
C -111-9663 Front Lower Wiper
A -110-0798 E -111-9662
C - 111-9663 Backup Alarm
A -110-0798 4 Contacts E - 111-9662
8 Contacts U - 109-7333 Neutral Start
B -113-2695 H -101-8161
C -111-9663 Rear Wiper
B -113-2695 K - 101-8162
Y -113-2694 Front Upper Wiper
K - 101-8162
Radio
H -101-8161
L - 101-8164
F-11
A-6
E-6
E-13
F-12
E-12
C-6
B-9
C-5
D-10
E-14
E-6
B-12
E-9
C-11
D-4
D-12
B-8
B-13
E-13
A-11
C-4
F-14
E-14
E-6
F-3
B-9
B-13
C-5
F-14
F-10
D-8
D-8
C-6
B-13
F-12
Component Location Chart
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Action B-8 C Sender - Fuel Level A-13 12
Alarm - Backup E-15 1 Solenoid - A/C Clutch A-13 15
Alternator (35A standard) D-14 2 Solenoid - Differential Unlock E-14 27
Battery E-13 3 Solenoid - Engine Shutdown D-13 26
Battery E-13 4 Solenoid - Forward Horn F-3 16
Breaker - Alternator (40A) D-13 5 Solenoid - Park Brake B-12 16
Breaker - Headlamp (15A) D-10 B Solenoid - Start Aid A-13 18
Breaker - Lightbar (15A) D-10 B Solenoids - Blade Cushion E-2 19
Control - Supplement Steer E-13 6 Solenoids - Centershift B-3 16
Converter - Voltage F-10 7 Switch - A/C Refrigeration A-13 15
Flasher E-10 B Switch - Backup Alarm F-14 25
Fuses D-9 B Switch - Beacon B-6 C
Fuses E-10 B Switch - Beacon B-10 C
Fuses (10A) B-6 C Switch - Blower (A/C group) B-10 C
Gauge - Articulation F-5 A Switch - Blower (heater group) A-10 C
Gauge - Engine Coolant Temperature F-5 A Switch - Brake Air Pressure A-2 28
Gauge - Fuel Level E-5 A Switch - Brake Air Pressure A-2 28
Gauge - System Air Pressure (left side) E-5 A Switch - Centershift Pin B-9 C
Gauge - System Air Pressure (right side) E-5 A Switch - Cushion Blade B-9 C
Lamp - Action E-5 A Switch - Differential Unlock D-9 B
Meter - Service E-10 B Switch - Disconnect E-13 13
Monitor - Electronic Monitoring System (EMS) E-6 A Switch - Engine Coolant Temp (monitor) B-14 11
Motor - Blower A-12 E Switch - Engine Coolant Temp (strart aid) A-14 11
Motor - Blower (A/C group) B-10 E Switch - Engine Oil Pressure C-13 13
Motor - Blower (heater group) A-10 E Switch - Ether Aid/EMS Test E-8 B
Motor - Blower/Defroster E-4 E Switch - Flood Lamps D-8 B
Motor - Front Lower Washer F-6 8 Switch - Forward Horn E-9 B
Motor - Front Lower Wiper C-4 9 Switch - Front Defroster A-6 C
Motor - Front Upper Washer F-6 8 Switch - Front Lower Wiper A-5 C
Motor - Front Upper Wiper D-4 D Switch - Front Upper Wiper B-5 C
Motor - Rear Washer F-6 8 Switch - Fuel Pressure B-13 15
Motor - Rear Wiper E-11 D Switch - Head/Tail Lamp E-8 B
Motor - Starter E-12 5 Switch - Headlamp Dimmer D-9 B
Motor - Supplemental Steer F-13 8 Switch - Hydraulic Oil Temperature C-12 20
Motors - Condensor B-10 10 Switch - Key Start B-9 C
Relay -Condensor C-10 10 Switch - Light Bar Low Beam E-8 B
Relay - Main D-14 5 Switch - Neutral Start E-14 25
Relay - Start D-13 5 Switch - Panel Lamp Dimmer E-9 B
Relay - Supplemental Steer F-13 6 Switch - Park Brake Pressure B-12 23
Resistor - Air Dryer F-14 18 Switch - Primary Steer F-10 21
Resistor - Blower Speed A-12 E Switch - Rear Defroster B-6 C
Resistor - Blower Speed E-4 E Switch - Rear Wiper A-5 C
Resistor - Blower Speed (A/C group) B-11 E Switch - Stop Lamp Pressure A-2 28
Resistor - Blower Speed (heater group) A-11 E Switch - Supplemental Steer Test B-8 C
Resistor - Panel Lamp Dimmer E-9 B Switch - Tail Lamp D-8 B
Resistor - Starter/Diagnostic E-13 5 Switch - Thermostat (A/C group) B-11 C
Sender - Articulation C-12 7 Switch - Turn Signal D-9 B
Sender - Engine Coolant Temp (gauge) A-14 11
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 (Under Seat).
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
107.2± 2.8°C 91.0°C MIN
7N-9785 Engine Coolant Temp (EMS) (225 ± 5°F) (196°F MIN) Normally Closed
8N-1693 Engine Coolant Temp (start aid)
37.8 ± 2.8°C
100 ± 50°F
26.7°C MIN
(80.0°F MIN)
Normally Closed
101.7°C MIN 93.3°C MIN
8N-2248 Hydraulic Oil Temperature (215°F MIN)
(200°F MIN)
Normally Closed
1206 kPa MAX 700 ± 50 kPa
8T-8640 Primary Steering Pressure (175 psi MAX)
(100±7psi)
Normally Closed
93.0 ± 20.8 kPa 69 ± 21 kPa
9W-3187 Fuel Pressure (13.5 ± 3.0 psi)
(10 ± 3 psi)
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
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 (25 psi).
² Contact position at the contacts of the harness connector.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
7T-4003 Resistor - Blower Speed 10.0± 0.5
Overall 2.00 ± .10
9G-1950 Resistor - Blower Speed Tap 1.00 ± .05
3T-3123 Resistor - Panel Dimmer 25.0 ± .3
6T-2217 Resistor - Starter/Diagnostic Conn 150.0 ± 7.5
101-1759 Solenoid - A/C Clutch 14.4 ± 0.6
7T-6517 Solenoid - Blade Cushion 20.1 ± 1.0
9X-9482 Solenoid - Centershift 68
7T-9073 Solenoid - Differential Unlock 33.6 ± 1.0
Start (Latch) 1.55 ± 0.15
3E-7985 Solenoid - Engine Shutdown Stop (Unlatch) 10.30 ± 1.03
7T-9074 Solenoid - Forward Horn 55.17 ± 5.77
9G-4365 Solenoid - Start Aid 6.0
¹ At room temperature.
A
1
2
3
4
5
6
7
8
9
10
11
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
24
25
26
27
28
7
A
1
2
3
4
5
6
7
8
9
10
11
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
24
25
26
27
28
7
Machine Harness Connector and Component Locations
D34315
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
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.
1
7
2
3
4
6
2
3
3
2
2
2
4
11
11
6
2
3
8
9
6
10
2
3
2
4
11
*
*
*
*
*
*
*
*
*
*
*
201-BK
413-BR
405-GY
GND
PARK
B+
HI
LO
MOTOR
T
1
3
4
6
5
1
200-BK
200-BK
200-BK
200-BK
4
3
9
8
9
8
7
6
5
4
7
3
2
1
6
1
2
2
2
1
6
5
5
4
2
3
4
3
2
1
165-YL
165-YL
165-YL
601-GY
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
1
J J
619-GN
619-GN
614-PU
614-PU
609-YL
200-BK
601-GY
601-GY
200-BK
200-BK
200-BK
601-GY
200-BK
200-BK
200-BK
165-YL
3
2
A429-YL
L30
L35
L65
L12
9
8
5
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
121-YL
604-OR
122-BU-14
597-PU
522-WH
308-YL
326-PU
409-OR
113-OR
113-OR
113-OR
605-YL
606-GY
310-PU
608-GN
614-PU
605-YL
605-YL
200-BK
BLADE
CUSHION SW
9X-9629
PANEL LAMP
(SHIFT LEVER)
7N-5876
NOTE B
165-YL
121-YL
608-GN
609-YL
614-PU
200-BK
601-GY
629-PK
614-PU
115-PK
103-YL
1
200-BK
3
601-GY
200-BK
601-GY
415-GN
308-YL
6
7
201-BK
6
4
592-BU
2
1
3
A513-PK
506-PU
578-BU
507-WH
575-YL
577-PU
576-PK
152-BU
101-RD
5
4
3
2
1
7
601-GY
605-YL
606-GY
611-PU
619-GN
308-YL
326-PU
307-OR
105-BR
169-PK
614-PU
570-BU
169-PK
200-BK
629-PK
415-GN
201-BK
K
K
L16
L13
112-PU-10
P
P
200-BK
200-BK
310-PU
10
200-BK
1
2
101-RD-14
619-GN
2
1
BRAKE AIR SW
3E-2033
BK-18
BRAKE AIR SW
3E-2033
BK-18201-BK
BK-18
619-GN
606-GY
611-PU
611-PU
619-GN
310-PU
101-RD
570-BU
410-WH
201-BK
S
S
S
A429-YL
S
S
S
112-PU
112-PU
112-PU
112-PU
112-PU
488-WH
K
K
605-YL
619-GN
611-PU
200-BK
727-GN
CONN B
CONN A
NOTE: WITH SUPPLEMENTAL
STEERING SWITCH CONN'S
A&B
417-GY
462-YL
611-PU
P
200-BK
P
601-GY
600-BR
200-BK
165-YL
308-YL
B751-BU
326-PU
K
K
200-BK
307-OR
B751-BU
105-BR
134-YL
570-BU
Q
417-GY
BK-18
200-BK
629-PK
U
CENTERSHIFT
PIN SW
3E8823
SUPP STER
TEST SW
9X-9633
U
U
U
200-BK
U
U
U
U
U
U
200-BK
Q
U
200-BK
U
113-OR
601-GY
165-YL
B751-BU
601-GY
200-BK
116-BR
A513-PK
200-BK
512-GN
511-BR
592-BU
200-BK
113-OR
A513-PK
L19
L16
L13
L62
L22
L19
L19
L62
L62
L62
601-GY
570-BU
7
2
3
6
4
5
1
2
1
9
5
3
4
6
8
7
10
200-BK
169-PK
103-YL
608-GN
200-BK
462-YL
404-YL
614-PU
410-WH
201-BK
HEADLAMP/
TAIL SW
3E-9317
(NOTE G)
A
113-OR
200-BK
3
2
609-YL
L62
L62
L16
L16
A
L15
L14
L14
2
3
200-BK
L14
601-GY
L14
134-YL
601-GY
727-GN
L13
L13
L2
L2
L22
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
BK/RD
BK
200-BK
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
3
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
K
KK
102-BU
415-GN
322-GY
114-GN
605-YL
606-GY
614-PU
611-PU
619-GN
601-GY
10
609-YL
200-BK
310-PU
629-PK
608-GN
605-YL
606-GY
200-BK
U
410-WH
201-BK
B751-BU
1
2
601-GY
200-BK
601-GY
A
L12
L12
L32
L32
L32
L35
L30
L30
L30
L30
L34
L6
L29
L29
L29
L40
L65
L65
L65
L11
L11
L7
L7
L34
L35
L35
L35
L23
L36
L36
L38
322-GY
PANEL LAMP
DIMMER SW
3E-9318
L38
122-BU-14
J
124-GN
113-OR
601-GY
611-PU
HEADLAMP DIMMER SW
103-5678
136-GN
600-BR
601-GY
200-BK
608-GN
601-GY
103-YL
165-YL
169-PK
116-BR
149-PU
614-PU
614-PU614-PU
614-PU
L39L39
L40
601-GY
601-GY
200-BK
200-BK
L40
200-BK
200-BK
L40
L40
L39
L40
403-GN
121-YL
614-PU
200-BK
619-GN
556-WH
308-YL
201-BK
200-BK
OPERATOR MONITOR 9X-7801
L64
L43
L43
L43
L43
LAMP
UNUSED
UNUSED
GROUND
NEUTRAL
BK AIR PRESS
HYD TEMP
BRAKE ON
L64
ALARM
+ BATTERY
PRIM STEER
SHIFT FAULT
UNUSED
UNUSED
FUEL PRESS
ALTERNATOR
TEST
ENG OIL PRESS
COOLANT TEMP
6
3
606-GY
201-BK
4
TAIL
LAMP SW
3E-9319
8
3
L43
7
201-BK
1
441-OR
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
308-YL
3
11
18
14
2
9
8
7
19
17
10
12
4
13
6
5
15
3
2
417-GY
410-WH
419-YL
404-YL
408-WH
409-OR
9
5
6
2
3
L6
2
149-PU
601-GY
6
L11
FLOOD
LAMPS
9X-9632
200-BK
L12
L32
16
20
5
2
ETHER AID/
EMS TEST SW
9X-9628
L32
L32
101-RD-14
2
L64 L64
200-BK
L21 L21
L21
L21
L
L
L10
L63
L63
L5
L
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
4
L6
8
L11
L11
L11
L12
L10
L10
L10
L10
L10
L1
L1
L7
L7
L6
L6
L5
L5
1
6
L
L1L1
L
L
L
3
L
5
200-BK
7
L
L
2
L
L
L
L
L
L
L
L
L
L
L
M
M
A
A
200-BK
L
201-BK
200-BK
200-BK
M
200-BK
L
200-BK
200-BK
200-BK
200-BK
200-BK
M
200-BK
200-BK
200-BK
578-BU
411-PK
201-BK
M
200-BK
9
L
L
L
-
L
+
200-BK
200-BK
200-BK
200-BK
L
-+- +
L
REAR
WASHER
7T-8891
FRONT UPPER
WASHER
7T-8891
507-WH
506-PU
578-BU
FRONT LOWER
WASHER
7T-8891
507-WH
200-BK
FRONT
FRAME
201-BK
L
L
200-BK-6
L
200-BK
604-OR
130-GN
577-PU
576-PK
K
K
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
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
200-BK
200-BK
200-BK
575-YL
M
RIGHT TURN
INDICATOR
LAMP
7N-5876
NOTE B
200-BK
200-BK
200-BK
200-BK
4 GA
CAB
GROUND
606-GY
605-YL
611-PU
619-GN
114-GN
322-GY
606-GY
200-BK
201-BK
201-BK
201-BK
201-BK
201-BK
506-PU
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
505-BU
BK
113-OR
FRONT
FRAME
5
504-YL
3
119-PK
REAR
DEFROST SW
9X-9638
FRONT
DEFROST SW
9X-9638
7
152-BU
L
152-BU
152-BU
200-BK
119-PK
119-PK
2
MOTOR
L
503-BR
507-WH
119-PK
118-GY
L
L
200-BK
601-GY
144-GN
603-PK
3
118-GY
118-GY
118-GY
584-YL
584-YL
4K-5122 HOLDER AS.
3K-8782 FUSE
601-GY
200-BK
2
200-BK
200-BK
118-GY
152-BU
119-PK
141-PK
151-GN
108-BU
144-GN
A503-PK
A506-OR
584-YL
1
2
151-GN
10
556-WH
10
5
584-YL
3
4
A504-GN
6
200-BK
141-PK
601-GY
101-RD
507-WH
578-BU
506-PU
118-GY
501-GN
500-BR
502-OR
4
6
8
RD
BK
1
ACTION ALARM
9G-9813
2
5
7
9
3
4
6
8
1
201-BK
200-BK
200-BK-14
SHIFT CONSOLE
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
6
101-RD
4
OPERATOR STATION
201-BK
M
413-BR
M
200-BK-6
3
2
200-BK
119-PK
T
A
200-BK
200-BK
502-OR
406-PU
609-YL 609-YL
5
405-GY
609-YL
200-BK
200-BK
200-BK
9
200-BK
201-BK
CENTERSHIFT
SOLENOID
9X-9482
8
601-GY
6
L34
8
U
E773-YL
A507-YL
INSTRUMENT PANEL
CAB SWITCH AND FUSE CONSOLE
601-GY
6
5
FRONT LOWER
WIPER SW
3T-6655
UNUSED
4
1
FORWARD
HORN
SOLENOID
7T-9074
1
113-OR
200-BK
1
1
GRD
SEND
IGN
LAMP
8M-6176
FUEL
LEVEL
COOLANT
TEMP
MASTER
ACTION
LAMP
9W-2111
NOTE B
411-PK
201-BK
GN
GN
605-YL
200-BK
614-PU
200-BK
614-PU
200-BK
E773-YL
200-BK
A429-YL
200-BK
113-OR
441-OR
614-PU
LEFT TURN
INDICATOR
LAMP
7N-5876
NOTE B
R/S SYSTEM
AIR PRESS
GAGE
1W-3306
LAMP
7N-5876
NOTE B
L/S SYSTEM
AIR PRESS
GAGE
1W-3306
LAMP
7N-5876
NOTE B
403-GN
GAGE
CLUSTER
124 0384
415-GN
1
2
WH
RD
OR
PU
GN
GY
PK
YL
BK
(24 V)
(12 V)
(24 V)
IGN
SEND
GRD
IGN
SEND
GRD
MM
M
M
M
M
A
ARTICULATION
5
2
A
200-BK
A507-YL
A504-GN
603-PK
119-PK
505-BU
503-BR
504-YL
FRONT UPPER
WIPER SW
3T-6655
101-RD
447-PK
200-BK
601-GY
409-OR
201-BK
J
A
A
J
AJ
AA
601-GY
A
7
AA
AA
AA
601-GY
P
P
P
Q
T
T
CC
T
A
A
Q
P
A
A
Q
P
P
P
A
A
A
A
A
CCA
A ZZ
ZZ
L
501-GN
A
500-BR
H
U
A
119-PK
U
A
J
601-GY
2
J
103-YL
L
4
619-GN
611-PU
606-GY
611-PU
606-GY
619-GN
200-BK
200-BK
629-PK
200-BK
629-PK
6
CENTERSHIFT
SOLENOID
9X-9482
5
1
2
B751-BU
200-BK
GN
GN
4
3 2
1
614-PU
556-WH
570-BU 570-BU
200-BK
1
2
1
2
606-GY
200-BK
LO BEAM
HEADLAMP
9X-7169
200-BK
200-BK
200-BK
200-BK
629-PK
200-BK
LO BEAM
HEADLAMP
9X-7169
606-GY
605-YL
611-PU
619-GN
200-BK
629-PK
200-BK
200-BK
1
2
629-PK
200-BK
L
601-GY
GN
GN
1
2
GN
GN
601-GY
601-GY
601-GY
408-WH
488-WH
614-PU
123-WH
J
7
403-GN
STOP LAMP
SW
2M-9346
200-BK
200-BK
3
L
614-PU
1
2
BLADE
CUSHION
SOLENOIDS
7T-6517
570-BU
200-BK
U
U
L34
U
1
REAR
WIPER SW
3T-6655
201-BK
606-GY
605-YL
614-PU
J
3
1
4
2
5
J
5
200-BK
417-GY
201-BK
409-OR
408-WH
404-YL
419-YL
201-BK
410-WH
A429-YL
101-RD-10
201-BK
413-BR
406-PU
405-GY
113-OR
415-GN
E773-YL
447-PK
441-OR
113-OR
403-GN
(12 V)
130-GN
604-OR
201-BK
408-WH
201-BK
609-YL
200-BK
RD
BK
1
2
1
2
114-GN
322-GY
200-BK
1
2
3
4
5
570-BU
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
1
2
619-GN
200-BK
611-PU
200-BK
LO BEAM
HEADLAMP
9X-7169
HI BEAM
HEADLAMP
9X-7170
TURN
SIGNAL
7X-6066
BLADE
FLOOD
LAMP
9X-6775
BLADE
FLOOD
LAMP
9X-6775
201-BK
D28459
T
T
T
1
4
2
3
2
4
1
40A
60A
80A
GND
START
STOP
G S
MTR BAT
MOTOR
T
2
5
1
3
4
6
2
5
1
3
4
6
2
5
H
L
B B
P
W
H
L
B B
P
W
H
L
B B
P
W
7
9
8
6
5 4
3 2
1
7
15
U
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 LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
TURN SIGNAL CIRCUIT.
ENGINE SHUTDOWN CONTROL CIRCUIT.
START AID CIRCUIT.
CIRCUIT IDENTIFICATION LEGEND
DASHED LINES INDICATE ATTACHMENT COMPONENTS,
WIRES AND CONNECTORS.
605-YL
200-BK
RD
BK
TURN LAMP
7X-6066
G
S
T
1
2
604-OR
614-PU
200-BK
RD
WH
BK
1
3
2
STOP/TAIL
LAMP
8C-6207
D
D
321-BR
200-BK
200-BK
606-GY
614-PU
604-OR
604-OR
614-PU
606-GY
321-BR
200-BK
200-BK
200-BK
200-BK
D
L50
D
BACKUP
ALARM
3T-1815
G
TURN LAMP
7X-6066
STOP/TAIL
LAMP
8C-6207
RD
BK
RD
WH
BK
T
S
L50
605-YL
604-OR
614-PU
606-GY
321-BR
200-BK
1
2
1
3
2
200-BK
606-GY
614-PU
604-OR
606-GY
200-BK
604-OR
614-PU
200-BK
REAR FLOOD
LAMP
9X-6775
200-BK
200-BK
200-BK
200-BK
E
E
Y
306-GN
200-BK
D
D
2
1
2
1
201-BK
C
2
1
6
5
4
3
2
1
L69
L61
200-BK
608-GN
406-PU
201-BK
200-BK
608-GN
COOLANT SW
8N-1693
COOLANT TEMP
SWITCH
7N-9785
COOLANT TEMP
SENDER
7N-8532
441-OR
608-GN
200-BK
B
B
B
311-WH
311-WH
B
L60
L69
L48
L61
L69
L60
L48
L60
L48
321-BR
121-YL
E
122-BU-14
200-BK
200-BK
556-WH
306-GN
307-OR
409-OR
201-BK
HHDD
YHH
201-BK
200-BK
606-GY
614-PU
604-OR
605-YL
556-WH
121-YL
122-BU-14
200-BK
200-BK
200-BK
200-BK
11
1
2
E
D
311-WH
L-61
311-WH
101-RD
2
1
200-BK
608-GN
608-GN
201-BK
405-GY
200-BK
200-BK
112-PU
112-PU-4
200-BK-4
200-BK
403-GN
311-WH
310-PU
1
2
447-PK
200-BK
REAR FLOOD
LAMP
9X-6775
ALTERNATOR
100-5047 50A ATCH
3E-7577 75A ATCH
6N-9294 35A STD
MAIN
RELAY
101-7740
109-OR-4
ALT
+
R
597-PU
522-WH
201-BK
201-BK
310-PU
311-WH
308-YL
308-YL
Y
B
200-BK
E
WH-18
WH-18
WH-18
3
4
1
2
WH-18
L63
L63
L63
L63
L49
L49
Y
Y
Y
DIODE AS.
105-8827
2
1
200-BK
101-RD
SOCKET AS.
9R-7941
PP
PP
522-WH
513-OR
2
1
WH-18
2
1
4
3
WH-18
WH-18
WH-18
E
E
1
2
AIR DRYER
8W-3087
GN
GN
1
BK
BK
2
200-BK
L62
L62
200-BK
105-BR
Y
200-BK
STARTING AND CHARGING
DIAGNOSTIC CONNECTOR
200-BK
Y
Y
109-OR-4
200-BK
10
9
8
6
4
1
7
2
3
5
20
19
109-OR-4
201-BK
18
203-BK
17
109-OR
16
15
14
13
308-YL
207-BK
302-OR
Y
112-PU
101-RD
HHDD
306-GN
310-PU
112-PU
310-PU
308-YL
14
STEER SW
ALTERNATOR
GROUND
+ BATTERY
MOTOR RELAY
OPR PANEL
SUPPLEMENTAL
STEERING
3E-5184
BK-18
BK-18
413-BR
FUEL
SW
9W-3187
109-OR-10
311-WH
304-WH-10
101-RD
101-RD-4
ALTERNATOR
BREAKER
9S-0174 ATCH
9S-4693 ATCH
2H-1507 STD
2
1
ENGINE
OIL SW
9X-0378
BK-18
BK-18
START AID
SOLENOID
9G-4365
FUEL LEVEL
SENDER
124-0287
PK-18
BK-18
1
2
GN
GN
109-OR-4
109-OR
START
RELAY
3E-7279
304-WH
B
B
B
BACK-UP ALARM SW
3E-9367
L68
L60
L60
L48
L48
L68
L68
L49
L49 L49
L48
L48
L48
PP
101-RD
1
2
3E-9169 DIODE AS.
1
2
NEUTRAL/START
SW
3E-9367
DIFFERNTIAL
UNLOCK SOLENOID
7T-9073
Y
Y
Y Y
1
2
B
B
12
200-BK
304-WH
2
3
4
8
1
5
6
306-GN
308-YL
310-PU
311-WH
109-OR
112-PU
304-WH
B
Y
7
101-RD
405-GY
201-BK
200-BK
L68
306-GN
PK-18
BR-18
BK-18
BU-18
PU-18
OR-18
WH-18
RD-18
YL-18
1
2
9
6
8
4
5
3
7
KEY SW
GN-18
GY-18
SUPPLEMENTAL
STEERING
MOTOR
117-3915
SUPPLEMENTAL
STEERING
RELAY
3E-0154
RD-0
RD-0
MOTOR
326-PU
200-BK-10
301-BU-10
136-GN
308-YL
200-BK
200-BK
728-BU
403-GN
AIR CONDITIONER
CLUTCH SOL
101-1759
727-GN
417-GY
1
2
B
B
B
B
B
Y
310-PU
8
6
C
C
C
200-BK
727-GN
462-YL
326-PU
522-WH
597-PU
406-PU
441-OR
200-BK
447-PK
608-GN
403-GN
310-PU
308-YL
Y
C
112-PU-4
Y
B
Y C
L68
SHUTDOWN
SOL
3E-7985
200-BK-4
200-BK
200-BK
200-BK
101-RD-4
7
2
L60
L60
L57
L54
L55
L56
1
4
200-BK
301-BU
302-OR
RESISTOR
6T-2217
2
203-BK203-BK
1
DISCONNECT SW
7N-0718
REAR
FRAME
NEG
5
POS
3
B
BK-00
BK-00
5
RR
RR
12V BATTERY
9X-9721
12V BATTERY
9X-9721
4
207-BK
3
200-BK
727-GN
462-YL
B
1
2
3
4
1
7
6
101-RD-4
2
B
B
Z
Z
YY
B
YY
WW
TT
NEGPOS
AAA
TT
403-GN
308-YL
201-BK
200-BK
447-PK
5
608-GN
105-BR
201-BK
413-BR
405-GY
727-GN
462-YL
326-PU
522-WH
597-PU
406-PU
441-OR
105-BR
13
A/C REFRIGERANT SW
114-5334
NOTE A
L
H
462-YL
727-GN
200-BK
BK-18
BK-18
1
2
513-OR
597-PU
101-RD-4
112-PU-4
1
2
3
7
8
6
4
5
1
2
EE
200-BK
Z
2
5
3
4
1
7
C
403-GN
200-BK
728-BU
136-GN
308-YL
200-BK
BK-0
121-YL
L57
L56
L55
L60
L54
ANTENNA
9W-3072
CABLE AS.
9X-3073
ARTICULATION
SENDER
3E-5383
200-BK-10
176-OR-14
200-BK
604-OR
556-WH
122-BU-14
605-YL
606-GY
614-PU
L57
L54
L55
L56
Y
6
PP
207-BK
301-BU
BK-6
REAR
FRAME
STARTER
106-8555
304-WH-10
RD-00
BK-00
ENGINE
BK-00
1/0 ATCH
BEACON
9X-9556
B
B
B
B
200-BK-10
BUSS BAR
124-5815
RD-00
LL
UU
UU
301-BU-10
SS
SS
417-GY
24V TO 12V CONVERTER
3E-8646
IGNITION
12V OUT
GROUND
24V IN
LOCALIZED
GROUND
STUD
727-GN
BULB
9X7849
10
409-OR
VV
E
A
C
AC
B
AAA
QQ
307-OR
DDD
DDD
AUX START
RECEPT.
BK-OO
XX
XX
727-GN
200-BK-10
RD-00
BK-00
C
101-RD-4
REAR FRAME
113-OR
(NOTE E)
RD-00
RD-0
2
1
2
1
7
8
6
3
4
5
8
2
1
7
6
5
4
3
2
1
403-GN
200-BK
419-YL
201-BK
123-WH
PARK BRAKE
PRESS SW
3E2033
PARK BRAKE
SOLENOID
7T-9074
7
GN
GN
6
BK-18
200-BK
5
4
3
BK-18
2
6
3
4
5
B+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
611-PU
619-GN
605-YL
606-GY
BK
WH
WH/BK
GY
GY/BK
L67
L67
L57
L56
L56
L56
L55
L55
L54
L54
RD
24V RADIO
9X-6810
200-BK
A429-YL
A429-YL
200-BK
101-RD-4
112-PU-8
112-PU-10
1
A507-YL
200-BK
RD
BK
200-BK
603-PK
308-YL
200-BK
504-YL
119-PK
503-BR
505-BU
603-PK
A504-GN
A507-YL
BLOWER
9X-0343
121-YL
604-OR
DEFROSTER
9X-9657
MOTOR
L67
L37
L37
L37
L61
L61
L41
L41
L41
L41
L20
L20
122-BU-14
1
2
RESISTOR
7T-4003
8
1
2
4
200-BK
200-BK
200-BK
200-BK
200-BK
2
1
8
7
H
403-GN
9
A
C
VV
A
H
H
H
A
C
QQ
C
A
C
A
HYDRAULIC OIL
TEMP SW
8N-2248
FRONT FRAME
404-YL
201-BK
201-BK
A A
12
EE EE
EE
4
3
6
5
406-PU
441-OR
201-BK
447-PK
413-BR
608-GN
405-GY
12V RADIO
3E-7140
DOME LAMP
8C-9678
A513-PK
592-BU
200-BK
508-PU
509-WH
511-BR
512-GN
113-OR
L61
GY/BK
GY
WH/BK
WH
BK
RD
YLB+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
L38
522-WH
597-PU
326-PU
310-PU
200-BK
A429-YL
728-BU
136-GN
403-GN
176-OR-14
123-WH
L35
L45
L38
L7
L37
L36
L36
L61
308-YL
105-BR
2
4
1
5
3
601-GY
522-WH
200-BK
521-YL
124-GN
CONN. A
L42
U
200-BK
200-BK
417-GY
WITH 8C-9788 COND. GP.,
CONN. A MATES TO CONN. B
WITH 8C-9787 HEATER GP.,
CONN. A MATES TO CONN. C
CONN. C
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
LO
REAR WIPER
9X-3392
MOTOR
K
2
1
8
7
T
2
CONN. B
727-GN
BK
L41
200-BK
1
15A
25A CONVERTER
BREAKER
3T-2662
201-BK
419-YL
608-GN
405-GY
403-GN
413-BR
447-PK
201-BK
441-OR
406-PU
K
101-RD-14
113-OR
L13
L13
L16
L16
L16
108-BU
200-BK
3
2
1
L63
BK
RD
WH
L61
L61
L65
L65
L63
124-GN
521-YL
515-GY
516-GN
517-BU
RESISTOR
9G-1950
3
5
1
4
2
HEATER GP SC-9787
200-BK
504-YL
119-PK
503-BR
505-BU
X
K
THERMOSTAT
SW
3E-5464
L41
L41
H
H
112-PU-10
101-RD-4
101-RD-10
L35
L35
11
3
2
1
2
4
6
7
9
5
8
1
W
W
2
1
3
2
1
1
J
J
J
L66
J
J
105-BR
24 TO 12 VOLT
CONVERTER
119-1733
105-BR
A513-PK
102-BU
10A
603-PK
200-BK
200-BK
200-BK
BEACON
9X-9556
601-GY
200-BK
101-RD
BEACON FUSE
+12V MEMORY
+24V IN
+ BATTERY
GROUND
GROUND (RADIO)
+12V RADIO
122-BU-14
124-GN
113-OR
136-GN
130-GN
134-YL
105-BR
102-BU
L37
L45
L45
SPARE
BACKUP ALARM
1
101-RD
115-PK
112-PU-8
102-BU
101-RD
L65
101-RD-10
L35
L35
L66
L37
103-YL
173-YL
SERVICE
METER
3E-9359
130-GN
134-YL
200-BK
403-GN
114-GN
105-BR
TAIL LAMPS
TURN SIGNALS
STOP LAMPS
SUPP STEER
HORN
+ -
J
J
KEY SW
1
2
728-BU
200-BK
3
2
1
STEER SW
8T-8640
101-RD-10
LIGHTBAR
LOW BEAM
BREAKER
3T-2662
HEADLAMP
BREAKER
15A
15A
BU
RD
BK
10A
10A
10A
10A
10A
10A
10A
10A
10A
X
BLOWER
9X-9363
515-GY
200-BK
BLOWER SW
6P-3236
BASE
7G-9730
PANEL LAMP
8D-1429
WH/RD-14
BK-14
1
2
MOTOR
3
4
5
2
1
200-BK
614-PU
BEACON SW
9X-9639
J
J
BULB
9X-7849
W
SIG
J
J
J
A
A
A
JJ
BBAA
121-YL
3
W
W
A
J
101-RD
FUSE BLOCK
9G-0747
SPARE
2
123-WH
10
2
4
1
6
5
2
3
2
1
3
4
5
1
2
J
J
J
J J
J
J
J
J
J
J
J
J
J
L35
L65
200-BK-14
597-BU
521-YL
601-GY
122-BU-14
AND MATE HARNESS FF
TO HARNESS A.
REMOVE PLUG 4E-8715
CONDENSER GP..
WITH 103-8519
OPEN ROPS BEACON ATCH
200-BK
601-GY
101-RD
521-YL
592-BU
200-BK
A513-PK
102-BU
200-BK
113-OR
RESISTOR
3T-3123
2
200-BK
601-GY
L16
L13
522-WH
ST
ON
OFF
B
S
C
R
200-BK
200-BK
124-GN
MATE WITH BEACON
HARNESS "W"
KEY START SW
9G-7641
L45
L37
L66
L66
L20
L63
L38
L7
L36
L36
TURN SIGNAL
SW
9G-5589
2
1
J
200-BK
2
1
619-GN
B
601-GY
614-PU
AIR DRYER
AIR CNDTR
GAGES
SUPP STEER
121-YL
403-GN
DIFF LOCK
BLADE CNTRL
REAR FLOODS
BLADE FLOODS
L64
10A
FLASHER
108-0358
L42
537-GN
1 4
15A
L42
10A
10A
10A
10A
10A
10A
10A
HORN SW
8X-9440
601-GY
200-BK
W
W
PLUG AS.
4E-8715
BK
A
601-GY
4
3
2
1
200-BK-14
597-BU
521-YL
122-BU-14158-BR-14
521-YL-14
597-PU-14
200-BK-14
GG
4
3
2
1
STEERING CONSOLE
601-GY
1
144-GN
U
U
A
JNN
A
3
3K-8782 FUSE (10A)
8M-8948 FUSE (15A)
8M-0456 FUSE (20A)
J
PARK BRAKE
W
FUSE BLOCK
9G-0747
112-PU-4
4 GA STD
STRAP
124-GN
521-YL
515-GY
516-GN
517-BU
RESISTOR
9G-1950
3
5
1
4
2
CONDITIONER GP-B SC9788
CONDENSER GP-ROOFTOP 103-8519
X
X
BLOWER
9X-9363
515-GY
200-BK
BLOWER SW
6P-3236
BK-14
GG
WH/RD-14 593-GN-14
200-BK-14
593-GN-14
200-BK-14
521-YL-14
597-PU-14
CONDENSER
MOTOR
7X-6279
BASE
7G-9730
PANEL LAMP
8D-1429
WH/RD-14
BK-14
1
2
1
2
MOTOR
MOTOR
3
4
5
2
1
200-BK
614-PU
15 14 13 12 11 10
F
E
D
C
B
A
F
E
D
C
B
A
304-WH-10
311-WH
BK-14
GG
FF FF
MM
WH/RD-14
CONDENSER
MOTOR
7X-6279
CONDENSER
RELAY
13
4 5
3E-5239
1
2
1
2
MOTOR
7G-1060
BB
101-8196
00
(LOW BEAM BREAKER-BAR)
142
ATCH
(START MTR TO BUSS BAR)
(NEG LFT BAT TO DISC SW)
(DISC SW TO R FRAME GND)
(NEG R BAT TO POS L BAT)
(START MTR TO FRAME GND)
(FRONT FRM TO REAR FRM)
(F FRM TO R FRM SUPP STR)
(B BAR TO SUP STR RELAY)
(STEERING MTR TO GND)
(SUP STR RLY/SUP STR MTR)
(F FRAME TO CAB GND)
(R POS BAT TO BUSS BAR)
(REC AS. TO BUSS BAR &
REC AS. TO FRM GND)
STD
ATCH
ATCH
ATCH
ATCH
ATCH
STD
210
211
212
213
214
204
204
261
262
263
105
274
275
00
00
01
00
03
00
01
01
01
00
02
00
00
124-2802
110-6398
110-6399
124-2801
061-7661
8X-9618
101-8202
101-8204
124-5346
1S-2342
111-0871
125-2243
QQ
RR
SS
TT
UU
VV
VV
WW
XX
YY
ZZ
AAA
DDD
CIRCUIT GROUPING
DESIGNATION
L#
SYMBOL
NOTE G: WITH 3E-9317 HEADLAMP/TAIL SW.,
REMOVE 3E-9319 TAIL LAMP SW.
NOTE H: USE 20A FUSE WHEN ATTACHMENT AIR CONDITIONER
FILE: 24 80002 257 SCH 00
THIS IS THE SCHEMATIC FOR THE 14H
MOTOR GRADER
W
101-8200
00
(BEACON-OPEN ROPS)
184
ATCH
X
124-1429
00
(HEATER GP)
154
ATCH
X
124-1429
00
(CONDITIONER GP-B)
150
ATCH
Y
113-2694
01
(FUEL TANK)
230
Z
101-8185
00
(SUPPLEMENTAL STEERING)
260
ATCH
AA
101-8197
00
(HEADLAMP BREAKER)
141 ATCH 
CC
101-8190
01
(BLADE FLOOD LAMP)
106
ATCH
DD
101-8192
00
(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 9X-4189 01
(CONDENSER GP-ROOFTOP)
152
ATCH
HH
101-8193
02
(REAR FLOOD LMP-FUEL TNK)
206
ATCH
PP
115-4599
02
(EEC SOCKET)
231
ATCH
NOTECHG
ATCH WIRE, CABLE &
COMPONENT
CABLE AS.
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
LOCATION
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
AND XMSN SHIFTER IN NEUTRAL
WIRE AS.
HARNESS AS.
PART NO.
UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE
ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAGE
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
DESCRIPTION
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
YELLOW
NOTE E: POWER LEADS FOR 2-WAY FM COMMUNICATION
RADIO SHOULD BE SIZE 10 AWG.
ORANGE
WHITE
RED
BR
PU
GY
L
101-8164
01
(CAB FUSE & SW PANEL)
180
M
101-8160
00
(GAGE CONSOLE)
160
P
116-0297
00
(HEADLIGHTS-BAR)
100
ATCH
Q
110-7855
00
(LOW BEAMS)
101
ATCH
S
101-8181
03
(CAB FUSE PANEL)
183
T
106-5524
00
(BLADE CUSHION)
104 ATCH
U
109-7333
00
(XSMN CONSOLE-SWITCHES)
171
A
110-0798
00
(PLATFORM)
120
B
113-2695
01
(ENGINE)
220
C
111-9663
01
(R FRAME-ENGINE)
200
D
101-8171
02
(RADIATOR GRILL)
203
E
111-9662
01
(R FRAME-TAIL)
201
H
101-8161
01
(CAB-REAR)
182
J
109-8827
00
(STEERING CONSOLE)
140
K
101-8162
01
(CAB-FRONT)
181
NOTE B: TERMINAL
3T-3157
SPRING 3T-3159
SOCKET 3T-3158
CONTACT 6D-4161
BOOT 3T-3278
LEVEL
LL
9F-4337
07
(START MTR TO ENGINE)
221
MM 6T-6962 00
(CONDENSER FAN JUMPER)
153
ATCH
NN
8X-9440
03
(HORN SWITCH)
143
(HEATS AND COOLS) WITH ROOF TOP CONDENSER
IS PRESENT