1HL WHEEL TRACTOR SCRAPER ELECTRICAL SYSTEM SCHEMATIC

Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Distribution Circuits 447 PK Fuel Level Gauge
101 RD Bat (+) (Not Application Specific) 449 BU Speedometer Sender (Signal No. 1)
102 RD Hd Lmp 450 YL Tachometer Sender (+)
103 YL Aux CKT B443 BR 613 Brake Oil Pressure/ 615 Coolant Flow
104 YL Aux CKT B445 GN Transmission Output Speedometer Sender
105 RD Key Start Sw Accessory Circuits
109 RD Alt Output (+) Term. 500 BR Wiper - Front (Park)
112 PU Main Power Rly Output 501 GN Wiper - Front (Low)
114 GN Warning Horn (Forward) 502 OR Wiper - Front (HI)
114 RD Warning Horn (Forward) To Battery 503 BR Wiper - Rear (Park)
116 BR Aux Ckt 504 YL Wiper - Rear (Low)
118 GY Aux Ckt 505 BU Wiper - Rear (HI)
119 PK Aux Ckt 506 PU Washer - Front
120 YL Aux Ckt 507 WH Washer - Rear
121 YL Backup Alarm To Lamp 508 PU Radio Speaker - Left
122 BU Aux Ckt 509 WH Radio Speaker - Left (Common)
123 WH Aux Ckt 511 BR Radio Speaker - Right
124 GN A/C 512 GN Radio Speaker - Right (Common)
125 OR Aux CKT 513 OR A/C Compressor/Refrigerant Pressure SW
141 RD Aux Ckt 515 GY Blower Motor (HI)
Ground Circuits 516 GN Blower Motor (Medium)
200 BK Main Chassis 517 BU Blower Motor (Low)
201 BK Operator Monitor Return 521 YL A/C SW To Refrigerant SW
203 BK Chassis Diagnostic 522 WH A/C Clutch To Thermostat SW
207 BK Starter Diagnostic 537 GN Turn Signal SW To Flasher
Basic Machine Circuits 584 YL Wiper Sw Jumper
301 BU Starter No. 1 Sol A514 YL SW To Relay Coil
302 OR Starter Relay No. 1 Resistor To Diagnostic A519 GN Axle Suspension Sol Valve
304 WH Starter Relay No. 1 Output A520 BU Relay To Axle Suspension Rocker SW
306 GN Starter Relay Coil To Neut Start SW Or A521 WH Pressure Sw To Ejector Detent Coil
307 OR Key Start SW To Neutral Start SW Or A522 GN Pressure Sw To Ejector Detent Coil
308 YL Main Power Relay Coil A523 PU Temp Potentiometer Pos 1
310 PU Start Aid SW To Start Aid Sol A524 BR Temp Potentiometer Pos 2
311 WH Start Aid Sol To Temp SW A525 GN Temp Potentiometer Pos 3
316 PK Cane To Elevator Neutral Start Sw Jumper A526 PK Electronic Water Valve Actuator
321 BR Backup Alarm Lamp Travel Alarm A527 BU Electronic Water Valve Actuator
322 GY Warning Horn (Forward) A528 YL Electronic Water Valve Actuator
323 WH Fuel Pump Power A529 WH Electronic Water Valve Actuator
326 PU Key Start SW "C" Term. A530 OR Electronic Water Valve Actuator
Monitoring Circuits A541 PU Flasher To Indicator Lights
403 GN Alternator (R) Term. Lighting Circuits
405 GY Opr Mon Oil Press. (Low Setting) 600 BR Dash Lamp Basic
406 PU Opr Mon Coolant Temp 601 GY Dash Lamp Hi
407 PK Opr Mon Converter/Retarder Oil Temp 602 WH Dome Lamp
408 WH Opr Mon System Air Pressure 604 OR Stop Lamp
409 OR Opr Mon Neutral 605 YL Turn Lamp - Left
410 WH Opr Mon Action Alarm 606 GY Turn Lamp - Right
411 PK Opr Mon Master 608 GN Flood Lamp - Rear
413 BR Opr Mon Fuel Pressure 610 OR Head Lamp Basic
415 GN Opr Mon Test Sw 611 PU Head Lamp Hi
417 GY Primary Ster SW 614 PU Park/Tail/Dash/Lamp
419 YL Opr Mon Parking Brake 619 GN Head Lamp Lo
441 OR Engine Coolant Temperature Gauge Control Circuits
444 BU Converter/Retarder Oil Temp Gauge 763 BU Torque Converter Sw
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
107-0613
Ejector Pressure Detent
Engine Oil Pressure
Engine Oil
62 ± 21 kPa
(9.0 ± 3.0 psi)
38 ± 21 kPa
(5.5 ± 3.0 psi)
Normally Open
114-5334 Refrigerant Pressure
275 to 2800 kPa
(40 to 406 psi)
170 to 1750 kPa
(24.7 to 253.8 psi)
Normally Open
125-9352 Stop Lamp Pressure 83 kPa MAX 48 ± 20 kPa MIN Normally Open
(12 psi MAX) (7 ± 3 psi MIN)
3E-2033 Air Parking Brake 640 kPa 530 ± 40 kPa Normally Open
Air Brake (92.0 psi) (77.0 ± 6.0 psi)
7N-9560 Converter Temp 129.4 ± 2.8°C 118.3°C MIN Normally Closed
265 ± 5°F) (245°F MIN)
7N-9785 Engine Coolant Temp (EMS) 107.2 ± 2.8°C 93.0°C MIN Normally Closed
(225 ± 5°F) (200°F MIN)
7X-1598 Ejector Detent Pressure 15158 kPa MAX 13780 ± 172 kPa MIN See Note 1
(2200 psi MAX) (2000 ± 25.0 psi MIN)
8N-1693 Start Aid Temp 37.8 ± 2.8°C 26.7°C MIN Normally Closed
(100 ± 5°F) (80°F MIN)
9D-7032 Torque Converter Oil Pressure 517 ± 35 kPa 448 ± 35 kPa See Note 1
(75 ± 5 psi) (65 ± 5 psi)
9W-31887 Fuel Pressure 93 ± 21 kPa 69 ± 21 kPa Normally Closed
(13.5 ± 3 psi) (10 ± 3 psi)
Note 1: Contacts 1 - 3 Normally Closed; Contacts 1 - 2 Normally Open
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-1906 Resistor: Air Conditioning Clutch 17.6 ±0.6
3T-3123 Resistor: Panel Dimmer 25.0 ± 0.3
6N-5926 Solenoid: Coolant 524 - 586 @ 115.6 °C (240 °F)
5806 - 7264 @ 54.4 °C (129.9 °F)
6T-2217 Resistor: Starter 150 ± 7.5
7T-9074 Solenoid: Forward Horn 74 ± 7.4
8T-8692 Solenoid: Axle Suspension 34.2
9G-1950 Resistor: A/C, Heater Blower Motor Overall 2.0 ± .1
9T-6590 Solenoid: Implement Valve Detent 108 ± 5.5
¹ At room temperature.
Related Electrical Service Manuals
Title Form Number
Alternator: 100-5047 SENR2082
Starting and Charging System SENR2947
Operator Monitoring System SENR2945
Starting Motor: 6V-5537 SENR3581
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Actuator - Water Valve F-5 A Sender - Tachometer B-11 12
Alarm - Action E-9 A Sender - Transmission Output Speed A-11 15
Alarm - Backup C-15 1 Solenoid - A/C Clutch A-9 2
Alternator A-8 2 Solenoid - Axle Suspension B-12 19
Batteries A-12 3 Solenoid - Forward Horn C-9 16
Breakers - Circuit E-13 C Solenoid - Implement Valve Detent A-13 17
Control - Board F-6 A Solenoid - Start Aid A-5 18
Flasher F-9 A Solenoid - Torque Converter C-13 16
Fuses F-12 A Switch - Air Conditioning/Heat F-1 C
Gauge - Air Pressure C-4 13 Switch - Air Pressure C-9 C
Gauge - Converter Temp B-5 B Switch - Axle Suspension D-4 C
Gauge - Coolant Temp B-4 B Switch - Backup Alarm F-12 C
Gauge - Fuel C-4 B Switch - Converter Temperature B-11 12
Ground - Cab C-2 16 Switch - Coolant Flow B-14 20
Ground - Chassis A-10 8 Switch - Coolant Temperature B-9 13
Ground - Chassis C-2 16 Switch - Disconnect A-12 11
Ground - Compartment D-13 C Switch - Ejector Detent Pressure A-9 21
Ground - Engine A-11 16 Switch - Ejector Detent Pressure A-13 17
Ground - Frame A-10 16 Switch - EMS Test D-3 C
Ground - Scraper Chassis A-10 1 Switch - Engine Oil Pressure A-9 21
Lamp - Action B-5 B Switch - Fan Speed F-2 C
Lamp - Bowl Flood B-14 30 Switch - Flood Lamp F-2 C
Lamp - Cutting Edge C-12 15 Switch - Forward Horn F-9 A
Meter - Speedometer C-4 B Switch - Front Wiper F-5 C
Meter - Tachometer/Service C-5 B Switch - Front/Rear Washer D-5 C
Monitor - Operator F-10 B Switch - Fuel Pressure B-9 2
Motor - Blower F-8 A Switch - Fuel Pump D-2 C
Motor - Front Washer Pump A-2 5 Switch - Head Lamp F-3 C
Motor - Front Wiper F-8 6 Switch - Head Lamp Dimmer C-9 A
Motor - Rear Washer Pump A-3 5 Switch - Key Start E-1 C
Motor - Rear Wiper F-14 7 Switch - Neutral F-11 C
Motor - Starting A-11 8 Switch - Neutral Start F-11 C
Motor - Fuel Pump B-15 9 Switch - Oil Pressure (EMS) A-9 21
Relay - Fuel Pump D-11 C Switch - Oil Pressure Fuel Pump A-9 21
Relay - Head Lamp E-14 C Switch - Panel Dimmer E-6 C
Relay - Main E-12 C Switch - Parking Brake C-9 C
Relay - Start D-12 C Switch - Rear Wiper D-5 C
Relay - Suspension Axle D-13 A Switch - Refrigerant C-9 2
Resistor - Fan Speed E-8 A Switch - Start Aid D-3 C
Resistor - Panel Dimmer F-6 C Switch - Start Aid Temperature B-9 13
Resistor - Starter/Diagnostic Connector B-11 11 Switch - Steering Flow B-12 16
Resistor - Temperature Selector D-6 A Switch - Stop Lamp C-10 16
Sender - Converter Temperature B-11 12 Switch - Thermostat E-8 A
Sender - Coolant Temperature B-9 13 Switch - Turn Signal F-8 A
Sender - Fuel Level D-15 14
Machine locations are repeated for components located close together.
A = Components located in operator compartment.
B = Components located in front right side dash.
C = Components located in right side console.
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 C-15 1
CONN 2 E-14 27
CONN 3 E-14 C
CONN 4 C-13 30
CONN 5 C-13 25
CONN 6 E-13 ?
CONN 7 E-13 B
CONN 8 Diagnostic Connector F-12 23
CONN 9 C-12 30
CONN 10 C-12 21
CONN 11 B-12 21
CONN 12 C-11 22
CONN 13 C-11 22
CONN 14 E-11 C
CONN 15 C-11 C
CONN 16 F-11 31
CONN 17 F-11 26
CONN 18 C-10 22
CONN 19 E-9 29
CONN 20 F-8 B
CONN 21 E-8 32
CONN 22 E-8 B
CONN 23 E-7 C
CONN 24 C-6 B
CONN 25 A-6 24
CONN 26 A-6 5
CONN 27 C-5 B
CONN 28 C-3 28
The connectors shown in this chart are for harness to harness
connectors. Connectors that join a harness to a component are
generally located at or near the component. See the Component
Location Chart.
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.
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.
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
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
7
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
7
Machine Harness Connector And Component Locations
E94159
SENR5694 - 01
October 1999
615C Series II
Electrical System
Tractor:
9XG1-UP
Scraper:
2XG898-UP
Elevating Wheel Tractor - Scraper
1999 Caterpillar
All Rights Reserved
Printed in U.S.A.
©
E93508
614-PU
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
D
L34
310-PU
125-OR
L36
L36
C
C
619-GN
614-PU
605-YL
606-GY
200-BK-14
C
C
L36
L36
C
2 GA
LL
LL
CAB
GROUND
CHASSIS
GROUND
WH-18
517-BU-14
200-BK
A519-GN
2
S
S
S
S
S
L
L
L
L
L
L
614-PU
614-PU
200-BK-14
200-BK-14
BK-18
RD-18
C-2013R-2853LL
A-8
L
E-83E-6946GG
F-6
OPERATOR STATION
Z
614-PU
200-BK
LAMP
7X-2058
NOTE B
REAR
WASHER PUMP
7T-8891
200-BK
3
2
3
2
5
6
4
3
200-BK
601-GY
323-WH
HEAT SW ONLY
3E-7154
NOTE B: 8T-9722 SHELL
7V-8390 SPRING
6D-4162 BUSHING
6D-4161 CONTACT
E-13
LAMP
7X-2058
NOTE B
002T-1250Y
200-BK
1
614-PU
2
5
6
4
3
AIR
PRESSURE
1W-3306
1
3
2
-+
200-BK
2
601-GY
124-GN-14
COOLANT
TEMP
4W-0483
5
6
4
3
517-BU-14
A519-GN
A514-YL
601-GY
ST
ON
OFF
B
S
C
R
601-GY
521-YL-14
521-YL-14
A/C SW
3E-7155
FAN SPEED SW
3E-7156
517-BU-14
200-BK
601-GY
FLOOD LAMP SW
3E-7152
601-GY
124-GN-14
HEADLAMP SW
3E-7150
124-GN-14
517-BU-14
1
START AID SW
3E-7160
517-BU-14
517-BU-14
608-GN
608-GN
FUEL PUMP SW
3E-7171
200-BK
116-BR
EMS TEST SW
3E-7164
200-BK
614-PU
614-PU
200-BK
200-BK
200-BK
200-BK-14
611-PU
614-PU
619-GN
5
619-GN-14
KEY SW
9G-7641
605-YL
3
606-GY
4
3
2
1
2
1
A-11
A519-GN
614-PU
200-BK
614-PU614-PU
200-BK-14
200-BK-14
200-BK-14
200-BK-14
200-BK-14
200-BK-14
611-PU
200-BK-14
601-GY
200-BK
200-BK
00
00
2T-3302
2T-3303
8I-1573
CHG
A-6
2T-3310
05
06
AXLE SUSPENSION
SWITCH
3E-7170
3
12
2T-3306
AND XMSN SHIFTER IN NEUTRAL
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
CIRCUIT GROUPING
DESIGNATION
L
ATCH WIRE, CABLE,
COMPONENT
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
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
CONNECTOR
SYMBOL DESCRIPTION
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
YELLOW
ORANGE
WHITE
RED
BR
PU
GY
A-11
A-12
A-12
A-10
F-11
MM
B-12
F-11
ATCH
D-9
C-3
E-14
E-13
C-15
00
ATCH
C-11
B-5
E-7
E-7
01
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
EE
T
02
01
02
01
01
02
8I-1540U
2T-3348 02
042T-3308
2T-3307
OPERATOR STATION
C-10
DD
CC
BB
AA
CABLE AS.
WIRE AS.
R
03
N
M
L
K
J
H
G
01
E
D
C
C-10B
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
LOCPART NO.IDENT
HARNESS AS.
A
3
2
WH-18
1
BK-18
RD-18
507-WH
TURN
PARK
507-WH
MOTOR
MOTOR
LEFT TURN
PARK LAMP
129-5688
619-GN
606-GY
605-YL
611-PU
RIGHT TURN
PARK LAMP
129-5688
TURN
PARK
619-GN
611-PU
THIS SCHEMATIC IS FOR THE 615C (9X-9924 CHG 00)
200-BK
A-12
L18
L18
3
L18
LAMP
7X-2058
NOTE B
L20
619-GN
FRONT
WASHER PUMP
7T-8891
515-GY-14
516-GN-14
517-BU-14
415-GN
L20
200-BK
6
L22
L23
517-BU-14
3E-6945
L23
200-BK
200-BK
200-BK
124-GN-14
516-GN-14
201-BK
E-11
L22
HH
102-RD-14
01
01
00
102-RD-14
601-GY
308-YL 310-PU
S
5T-1561X
02
00
03
L23
601-GY
105-RD
LO HEAD LAMP
2T-3739
B-12
2T-3441
E-13
HI HEAD LAMP
2T-3738
LO HEAD LAMP
2T-3739
200-BK
323-WH
A-12006T-1992JJ
2T-3245
2T-3777
HI HEAD LAMP
2T-3738
2T-2854
4V-9764
4D-6565
9G-6259
W
200-BK
2T-3205
601-GY
L22
125-OR
102-RD-14
307-OR
326-PU
200-BK
608-GN
RM488
200-BK
506-PU
200-BK
116-BR
619-GN-14
200-BK
601-GY
506-PU
NOTE
00
00
200-BK
515-GY-14
601-GY
516-GN-14
601-GY
308-YL
2
515-GY-14
200-BK-14
308-YL
141-PK
FF
3N-0539
00
2T-2765
200-BK
517-BU-14
200-BK-14
C-15
002T-3821
02
03
C-14
2T-3778
2T-3350
5T-9895
2T-3204
2T-3315
2T-3312
02
200-BK-14
517-BU-14
NN
GAUGE
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAUGE
TO MACHINE STRUCTURE
CONN 28
L31
123-WH
D
D
D
601-GY
310-PU
3
1
2
311-WH
A
L27
200-BK
200-BK-14
200-BK
5
START
AID
SOLENOID
9G-4365
7
6
4
3
122-BU-14
2
5
4
3
2
1
124-GN-14
200-BK-14
WATER
VALVE
ACTUATOR
149-8195
CONTROL
BOARD
149-8217
1
L18
L18
L19
L21
L21
L19
L19
L19
L19
L6
L6
BR-14
BK-14
RD-14
3
2
1
TEMP
SELECTOR
116-8653
A523-PU-14
GG
FF
2
1
FF
4
1
7
L6
441-OR
123-WH
123-WH 123-WH
123-WH 123-WH
123-WH
411-PK
201-BK
614-PU
614-PU
B445-GN
3
614-PU
614-PU
200-BK
200-BK
200-BK
200-BK
8
200-BK
200-BK
2
200-BK
200-BK
614-PU
614-PU
614-PU
614-PU
614-PU
5
10
9
6
A
SPEEDOMETER
3E-3763
FUEL
9X-3496
IGN
SEND
GRD
TACH/HR
METER
149-9959
CONVERTER
TEMP
3E-7240
L23
IGN
SEND
GRD
GRD
SEND
IGN
LAMP
7X-2058
NOTE B
IGN
SEND
GRD
GRD
SIG
+
201-BK
200-BK-14
5
4
3
119-PK
2
EMS ACTION
LAMP
7X-2058
NOTE B
1
LAMP
7X-2058
NOTE B
LAMP
7X-2058
NOTE B
A D
D
2
5
6
4
447-PK
444-BU
450-YL
4
3
6
1
5
2
3
200-BK
449-BU
200-BK
200-BK
601-GY
601-GY
601-GY
200-BK
B445-GN
119-PK
504-YL
200-BK
200-BK
614-PU
505-BU
601-GY
A514-YL
601-GY
200-BK
601-GY
119-PK
A525-GN-14
A524-BR-14
201-BK
123-WH
441-OR
584-YL
500-BR
6
4
3
1
141-PK
506-PU
A525-GN-14
A524-BR-14
A523-PU-14
502-OR
200-BK
FRONT WIPER SW
3E-7157
5
2
PANEL
DIMMER SW
3E-7151
PANEL
DIMMER
RESISTOR
3T-3123
600-BR
614-PU
200-BK
503-BR
A519-GN
584-YL
504-YL
601-GY
REAR WIPER SW
3E-7169
118-GY
507-WH
FRONT/REAR
WASHER SW
3E-7158
118-GY
A
444-BU
450-YL
449-BU
447-PK
200-BK
506-PU
507-WH
7
9
8
1
4
3
10
2
6
5
614-PU
411-PK
200-BK
L22
C
C
L26
L26
A526-PK-14
601-GY
118-GY
601-GY
601-GY
L24
AIR DRYER
2G-2159
601-GY
S
614-PU
611-PU
200-BK
122-BU-14
501-GN
1
P
2
601-GY
RD
584-YL
505-BU
RD
119-PK
601-GY
L33
P
SS
601-GY
C
L34
619-GN-14
6
OPERATOR STATION
L35
200-BK
1
2
311-WH
310-PU
611-PU-14
1
200-BK
200-BK
C
200-BK-14
200-BK
200-BK
200-BK200-BK
C
601-GY
601-GY
C
601-GY
601-GY
601-GY
619-GN
3
605-YL
606-GY
601-GY
L33
507-WH
601-GY
1
200-BK
201-BK
415-GN
601-GY
200-BK
A530-OR-14
A529-WH-14
A528-YL-14
A527-BU-14
T
BK-18
BK-18
D
D
77
6
PANEL
LAMP
7X-2058
NOTE B
2
CONN 25
CONN 26
CONN 24
CONN 27
BK
A/C COMPRESSOR
ARC SUPPRESSOR
106-8704
MM
2
1
1
2
B
T
L26
L27
L27
L4
L4
L4 L4
201-BK
L24
L13
L13
L13
L13
L16
L16
L16
L16
L12
L12
L14
L14
L14
L14
L14
L15
L15
L15
L6
L4
L4
2
4
3
1
502-OR
500-BR
118-GY
501-GN
200-BK-14
GG
GG
GG
GG
GG
FF
FF
FF
A521-WH
1
2
B
L6
B
L24
605-YL
619-GN-14
610-OR-14
619-GN-14
J
614-PU
1
2
L20
2
1
J
2
L21
A525-GN-14
A524-BR-14
307-OR
A523-PU-14
36
619-GN-14
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
17
12
11
10
9
8
7
6
5
4
3
2
1
L31
L33
537-GN
605-YL
606-GY
L34
L32
BK
T
40
39
38
37
A514-YL
A519-GN
141-PK
BB
200-BK
614-PU
502-OR
118-GY
500-BR
501-GN
521-YL-14
124-GN-14
517-BU-14
516-GN-14
515-GY-14
608-GN
116-BR
619-GN-14
506-PU
326-PU
308-YL
307-OR
13
B
15
16
119-PK
504-YL
503-BR
505-BU
201-BK
507-WH
L26
201-BK
201-BK
201-BK
A
A
B
B
A524-BR-14
A525-GN-14
201-BK
B
201-BK
B
118-GY
2
1
GN
GN
141-YL
A
A
B
103-RD
2
102-RD-14
103-RD
201-BK
201-BK
522-WH-14
413-BR
513-OR-14
513-OR-14
522-WH-14
L35
GN
GY
BR
OR
4
2
3
1
H
L
MOTOR
1
2
3
A523-PU-14
515-GY-14
8
200-BK
1
6
2
3
409-OR
201-BK
FRONT
WIPER
9X-3392
9G-9813
L5
L5L5
L7
L7
L7
L35
L15
605-YL
606-GY
201-BK
419-YL
408-WH
L8
L8
L8
L25
L25
L35
L35
FORWARD
HORN SW
2T-3360
124-GN-14
322-GY
M
A
A
410-WH
BK
RD
2
1
OPERATOR
MONITOR
9X-7801
A
123-WH
419-YL
408-WH
201-BK
201-BK
201-BK
413-BR
405-GY
407-PK
406-PU
B443-BR
417-GY
410-WH
411-PK
415-GN
605-YL
606-GY
605-YL
606-GY
TURN
SIGNAL SW
2T-3413
118-GY
200-BK-14
A
7
201-BK
500-BR
501-GN
502-OR
1
11
4
19
18
17
3
15
16
13
12
10
9
8
7
6
5
20
14
2
1
U
123-WH
311-WH
200-BK
614-PU
105-RD
C
415-GN
125-OR
323-WH
502-OR
118-GY
501-GN
500-BR
START AID
TEMP SW
8N-1693
L13
L30
L30
614-PU
614-PU
5
9
M
M
M
L31
L31
A
A523-PU-14
608-GN
116-BR
201-BK
201-BK
201-BK
201-BK
606-GY
403-GN
105-RD
L31
1
3
+ BATTERY
LOAD
PILOT
322-GY 322-GY 4
GG
2
515-GY-14
4
522-WH-14
THERMOSTAT SW
3E-5464
RESISTOR
9G-1950
516-GN-14
516-GN-14
T
200-BK-14
515-GY-14
517-BU-14
200-BK-14
WH/RD-14
BK-14
124-GN-14
BLOWER
9X-9363
517-BU-14
MOTOR
123-WH 123-WH
3
2
1
323-WH-14
125-OR-14
ENGINE OIL SW
107-0613
ENGINE OIL
PRESS SW
107-0613
EJECTOR
DETENT SW
107-0613
521-YL-14
522-WH-14
MM
BK-6
200-BK
405-GY
201-BK
406-PU
HEAD LAMP
DIMMER SW
2H-1855
610-OR-14
FWD HORN
SOLENOID
7T-9074
408-WH
419-YL
611-PU-14
ALT
100-5047 STD
AIR
CONDITIONER
CLUTCH
SOLENOID
3E-1906
513-OR-14
403-GN
U
311-WH 25
9 9
OPERATOR STATION
YELLOW
GREEN
RED
2
4
1
2
B
L14
3
201-BK
307-OR
521-YL-14
15
B
201-BK
T
BK
L32
T
BK
RD
BU
B
1
109-RD-6
REFRIGERANT SW
114-5334
NOTE A
PARKING
BRAKE SW
3E-2033
AIR SW
3E-2033
BU
RD
114-RD
BK
FUEL SW
9W-3187
COOLANT SW
7N-9785
COOLANT
SENDER
6N-5926
B
B
ALT
R
1
BLUE
FLASHER
3E-7527
A541-PU
310-PU
322-GY
441-OR
14
18
310-PU
308-YL
19
307-OR
ACTION ALARM
CONN 23
CONN 22
CONN 21
CONN 19
CONN 20
BK-18
WH-18
BK-18
B
B
B
B
L27
A
L16
L13
L8L8
L8
L8
BACK UP
ALARM SW
6G-4195
U
201-BK
201-BK
L6
L6
WH-18
K
K
K
200-BK
602-WH
AA
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
B
1
2
TACHOMETER
SENDER
3E-7886
B445-GN
449-BU
450-YL
201-BK
2
200-BK
311-WH
310-PU
1
141-YL
141-YL 141-YL
1
A
2
3
A519-GN
A520-BU
141-YL
2
207-BK
302-OR
A
6
8
4
3
7
5
2
1
A
119-PK
119-PK
8
10
9
1
6
5
7
4
3
2
1
447-PK
112-PU-12
A514-YL
BK-00
306-GN
2
8
3
A520-BU
9
2
1
2
125-OR-14
200-BK-14
109-RD-6
STOP LAMP SW
125-9352
A
125-OR
A
A
122-BU
1
316-PK
109-RD-6
105-RD
A
200-BK
ELV NEUTRAL START SW
6T-5925
R
R
R
R
R
R
R
109-RD-6
B
B
A
112-PU-12
1
A
A
4
8C-9678
311-WH
103-RD
A
306-GN
103-RD
7
201-BK
121-RD
HH
W
114-RD
121-RD121-RD
103-RD
103-RD
103-RD
323-WH
201-BK
203-BK-14
B443-BR
B
104-YL
125-OR
323-WH
125-OR
6
5
10
1
120-YL
REAR WIPER
125-OR
2
123-WH
FUSE
HOLDER
2S-3747
BK-18
307-OR
307-OR
NEUTRAL/
START SW
6T-5925
NEUTRAL SW
6T-5925
409-OR 409-OR
201-BK201-BK
307-OR 307-OR
316-PK316-PK
3
21
N/O
N/C
3
21
N/O
N/C
10A
FUSE
3K-8782
118-GY
116-BR
141-YL
MAIN
RELAY
3T-0376
304-WH-8
L12
L7
L9
L11
304-WH
308-YL
203-BK
311-WH
310-PU
308-YL
103-RD
A
N/C
N/O
109-RD-6
321-BR 321-BR
BK-18
200-BK-8
101-RD-6
103-RD
A
308-YL
310-PU
8
10
START
RELAY
3E-7279
103-RD
308-YL
FUEL
PUMP
RELAY
3E-7279
R
304-WH-8
419-YL
408-WH
L30
125-OR
L30
311-WH
R
R
R
112-PU-14
310-PU
306-GN
311-WH
306-GN
FUSE
BLOCK
9G-0747
AIR DRYER
CONVERTER
10A
10A
10A
10A
FRONT WIPER
FLOOD LAMP
HORN
IMPL VALVE SOL
BACKUP ALARM
10A
10A
10A
10A
10A
10A
101-RD-14
101-RD-12
306-GN
310-PU
W
200-BK
A
L31
L31
A
BK-18
L31
L30
323-WH
DISCONNECT SW
L7
Z
OPERATOR STATION
W/O STEERING SW CONNECT
PLUG B TO RECEPTACLE B
608-GN
201-BK
BK-00
RD-00
417-GY417-GY
B
BNN
NN
1
2
201-BK
CONVERTER SW
7N-9560
444-BU
407-PK
201-BK
2
1
203-BK-14
T E
E
E
A
A
608-GN
321-BR
B443-BR
608-GN
614-PU
606-GY
605-YL
604-OR
200-BK-14
U
141-YL
200-BK
200-BK
T
T
BK-18
L13
125-OR
323-WH
203-BK
L32
L32
L32
L32
5
4
3
2
1
B
2
L9
L5
602-WH
103-RD
DOME LAMP
SW
3T-3133
AIR PR
COOL TEMP
BK OIL PR
NEUTRAL
+ BATTERY
GROUND
ALTERNATOR
ENG OIL PR
LAMP
FUEL PR
TEST
PRIM. STER
PARK BK
L10
323-WH
FUEL PUMP
CONVERTER
SENDER
3E-7259
200-BK-14
306-GN
1
3
2
1
BK
YL
N/C
X
X
200-BK-8
207-BK
X
200-BK-14
N/O
1
B445-GN
L10
A514-YL
L16
323-WH-14
200-BK
STARTER
6V-5537
125-OR-14
B
AUX START
RECEPTACLE
450-YL
L9
L5
L10
TO
ENGINE
RESISTOR
6T-2217
1
2
302-OR
304-WH-8
AA
301-BU
101-RD-6
RD-00RD-00
BK-00
TO
FRAME
BK-6
BK-00
200-BK-14
A
B
403-GN
413-BR
405-GY
407-PK
406-PU
201-BK
449-BU
441-OR
444-BU
200-BK-8
101-RD-6
304-WH-8
207-BK
302-OR
417-GY
3
4
5
23
6
2
12
13
7
17
14
21
22
19
24
20
1
8
18
10
11
122-BU-14
U
R
WH
122-BU-14
16
323-WH-14
CHASSIS
GND
DD
Z
G
S
MTR
BAT
MOTOR
522-WH-14
TRANS OUTPUT
SPEED SENDER
3E-7886
B
200-BK
200-BK
A520-BU
2
3
316-PK
TORQUE CONV
A521-WH
A
1
2
604-OR
U
A
A519-GN
AA
GAUGE AND EMS
CONN 10
CONN 11
CONN 9
CONN 12
CONN 13
CONN 29
CONN 18
CONN 17
CONN 16
CONN 15
CONN 14
TC OIL TMP
ACTION ALM
CC
L27
L3
H
IMPL VALVE
DETENT SOL
9T-6590
B
A522-GN
A521-WH
E
200-BK-14
G
A519-GN
200-BK
200-BK
A520-BU
B
E
BU
RD
2
E
141-YL
A522-GN
BK
3
G
2
BK-18
RD-18
S
T
G
RD-18
WH-18
BK-18
1
1
2
614-PU
200-BK-14
N
TAIL
STOP
STOP-TAIL
LAMP
8C-6207
RIGHT
TURN LAMP
7X-6066
604-OR
3
2
B
BK
BR
JJ
JJ
T
2
201-BK
B443-BR
B
MOTOR
COOLANT
FLOW SW
9X-3040
3
2
4
1
200-BK-14
323-WH
FUEL
PUMP
7W-5668
12V BATTERY
3T-5760 STD
9G-4247 ATCH
12V BATTERY
3T-5760 STD
9G-4247 ATCH
7N-0718
L3
BACKUP
ALARM
3T-1815
BK-00
NN
CC
BB
RD-00
BK-00
BK
BK
2
1
200-BK
A520-BU
BOWL
FLOOD
LAMP
9X-1439
G
447-PK
200-BK-14
604-OR
614-PU
605-YL
606-GY
608-GN
8
5
7
3
6
4
2
1
9
10
H
BK-14
BK/PK-14
606-GY
321-BR
200-BK
1
2
1
2
A521-WH
1
321-BR
CUTTING
EDGE
FLOOD
LAMP
9X-1439
T
NEGPOS
NEGPOS
323-WH
200-BK-14
B443-BR
1
BK-18
BK-18
AXLE
SUSPENSION
SOLENOID
8T-8692
STEERING SW
134-6547
203-BK
B
2
1
A522-GN
141-YL
N
1
EJECTOR
DETENT
PRESS SW
7X-1598
203-BK-14
B443-BR
EE
CONN 1
CONN 4
WH
BK
GY
YL
RELAY COIL
GROUND
SOLENOID 2
SOLENOID 1
A
A
A
L3
L25
L16
L17
L17
L17
L27
L27
L16
L27
L27
L25
L25
K
K
511-BR
512-GN
2
2
4
3
2
1
K
A
A
A
A
J
J
512-GN
511-BR
509-WH
5
6
7
1
4
3
2
200-BK-14
200-BK-14
200-BK
200-BK-14
200-BK-14
200-BK-14
200-BK-8
200-BK
200-BK
200-BK-8
A520-BU
619-GN-14
610-OR-14
508-PU
120-YL
200-BK
4
3
119-PK
1
2
4
3
509-WH
201-BK-14
201-BK-14
508-PU
509-WH
508-PU
511-BR
512-GN
10
200-BK
REAR WIPER
9X-3392
GN
GY
BR
OR
4
2
3
1
H
L
MOTOR
T
BK
9
8
6
7
5
4
3
2
A
2
1
1
A514-YL
141-YL
A
SUSPENSION
AXLE RELAY
7T-1390
K
201-BK
200-BK
503-BR
504-YL
A
200-BK 200-BK
505-BU
119-PK
1
104-YL
A
763-BU
124-GN-14
505-BU
503-BR
119-PK
RD-18
5
BK-18
WH-18
6
1
TORQUE
CONVERTER SW
9D-7032
7
SCRAPER CHASSIS
GROUND
TORQUE
CONVERTER SOL
7N-9719
AA
L1
L1
200-BK
102-RD-14
DOME
LAMP
610-OR-14
COMPARTMENT
GND
604-OR
614-PU
A
A
A
200-BK-14
L11
200-BK
200-BK
OPERATOR STATION
447-PK
2
A
A
112-PU-14
323-WH
L1
103-RD
112-PU-10
2
DIAGNOSTIC
CONNECTOR
101-RD-12
ALTERNATOR
BREAKER
9S-0174
L11
L25
L11
L3
109-RD-6
OPERATOR STATION OPERATOR STATION
102-RD-14
203-BK
306-GN
112-PU
304-WH
102-RD
109-RD-6
101-RD
311-WH
207-BK
302-OR
20
19
18
17
16
15
14
13
9
4
12
6
5
3
1
11
7
2
10
60A
KEY BREAKER
9G-9487
101-RD-8
101-RD-6
DOME, STOP& TURN
LAMP BREAKER
9G-9487
HEAD, PANEL, TAIL&
PARK LAMP BREAKER
3T-2662
20
15
10
BLOWER MOTOR
BREAKER
3T-8728
124-GN-14112-PU-14
101-RD
101-RD-12
G
LEFT
TURN LAMP
7X-6066
STOP-TAIL
LAMP
8C-6207
604-OR
200-BK-14
606-GY
321-BR
200-BK-14
614-PU
605-YL
3
200-BK-14
BK-18
200-BK
200-BK
101-RD
200-BK
109-RD
614-PU
604-OR
S
T
G
447-PK
NN
120-YL
H
1
200-BK-14
200-BK-14
3
6
323-WH
200-BK-14
RD-18
102-RD-12
605-YL
102-RD-14
4
2
Y
1
5
N
606-GY
200-BK
321-BR
Y
101-RD-6
101-RD-12
200-BK-14
7
8
A
614-PU
604-OR
504-YL
200-BK-14
H
PK-18
BK-18
109-RD-6
112-PU
1
105-RD
109-RD
H
105-RD
105-RD
109-RD-6
109-RD-6
102-RD-14
102-RD
L1
200-BK
200-BK-14
103-RD
102-RD
101-RD
HEAD LAMP
RELAY
3E-5239
200-BK-14
H
200-BK-14
200-BK-14
201-BK
200-BK
101-RD-8
FUEL LEVEL
SENDER
115-8502
200-BK-14
CONN 5
CONN 2
CONN 3
CONN 7
CONN 6
CONN 8
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
F
E
D
C
B
A
F
E
D
C
B
A
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.
OPERATOR MONITOR CIRCUIT.
PANEL LAMP CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
TURN SIGNAL CIRCUIT.
START AID CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.