Component Identifiers (CID)¹ and Module Identifier (MID²)
EPTC - II Transmission Control (MID No. 027)
CID No. Component
0168 System Voltage
0190 Eng Speed Sensor Signal
0248 Data Link
0269 Sensor Supply
0571 Forward Elevator Solenoid
0572 Reverse Elevator Solenoid
0575 Elevator Lever Sensor
0627 Parking Brake Press Switch
0650 Harness Code
0672 Torque Converter Output Speed Sensor
0700 Transmission Gear Switch
0701 Transmission Output Speed Sensor
0702 Shift Lever Switch
0704 Service Brake Pressure Switch
0705 Body Raise Switch
0706 Body Up Switch
0707 Up Solenoid
0708 Down Solenoid
0709 Lockup Solenoid
0773 Hoist Lever Position Sensor
¹The CID is a diagnostic code that indicates which component is faulty.
²The MID is a diagnostic code that indicates which electronic control module
diagnosed the fault.
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Actuator - Water Valve C-1 6 Solenoid - CH Sole B-9 19
Air Dryer A-3 5 Solenoid - Differential Lock B-10 D
Alarm - Action A-6 A Solenoid - Downshift A-10 20
Alarm - Backup B-15 1 Solenoid - Ejector Detent C-7 21
Alternator B-3 2 Solenoid - Engine Shutdown C-4 22
Batteries A-4 3 Solenoid - Forward 1 Mag Detent C-7 C
Breaker - Alt F-2 B Solenoid - Forward Horn B-3 24
Breaker - Blower Motor F-3 B Solenoid - Front Throttle Lock B-9 D
Breaker - Converter E-3 B Solenoid - Reverse Mag Detent C-7 C
Breaker - Head Lamp F-3 B Solenoid - Start Aid A-3 25
Breaker - Panel, Dome, Stop/Tail Lamp F-3 B Solenoid - Upshift A-10 20
Control - Engine Shutdown A-8 D Solenoid - Valve Group D-7 C
Control - Stop/Tail Lamp B-14 4 Suppressor - Arc C-3 30
Control - Throttle Lock A-9 D Suppressor - Arc B-9 19
Control - Transmission (EPTC) D-10 D Switch - Air Pressure B-5 26
Control Board Assembly D-1 6 Switch - A/C High/Low Pressure C-3 2
Converter - Voltage D-3 D Switch - Apron B-8 A
Distributor - XMSN Speed B-8 D Switch - Backup Alarm A-5 C
Electronic Monitoring System (EMS) E-9 A Switch - CH D-8 C
Flasher F-9 E Switch - Clear C-10 D
Fuse Block E-4 B Switch - Conv Retr Temperature B-4 10
Gauge - Air Pressure B-8 A Switch - Coolant Flow A-4 22
Gauge - Converter Temp E-9 A Switch - Coolant Temperature B-4 28
Gauge - Coolant Temp E-8 A Switch - Coolant Temperature A-4 28
Gauge - Fuel E-8 A Switch - Differential B-9 D
Gauge - Speedometer F-8 A Switch - Disconnect A-5 C
Gauge - Tach/Hour Meter F-9 A Switch - Door Dome Lamp E-6 E
Ground - Cab E-2 D Switch - Ejector Kickout Pressure C-8 21
Ground - Frame B-7 D Switch - EMS Test E-12 A
Ground Strap - Cab to Frame E-2 D Switch - Engine Oil Pressure A-4 29
Master Action Lamp D-11 A Switch - Engine Oil Pressure B-4 29
Motor - Blower C-1 6 Switch - Fan Speed F-11 A
Motor - Front Washer E-3 6 Switch - Flood Lamp F-13 A
Motor - Front Wiper F-6 7 Switch - Forward Horn E-14 E
Motor - Rear Washer E-3 6 Switch - Front Wiper F-10 A
Motor - Rear Wiper E-7 9 Switch - Fuel Pressure A-4 30
Motor - Starter B-5 10 Switch - Headlamp F-14 A
Outlet - EEC E-6 8 Switch - Headlight Dimmer F-14 E
Potentiometer - Temperature Selector D-14 A Switch - Heat or A/C F-12 A
Relay - Bail C-9 D Switch - Key Start D-15 A
Relay - Control Group A-9 D Switch - Neutral Run E-13 A
Relay - Cush Hitch C-9 D Switch - Park Brake Pressure A-10 27
Relay - Implement Detents C-8 D Switch - Rear Wiper E-11 A
Relay - Headlamp F-15 D Switch - Set C-11 D
Relay - Main E-2 12 Switch - Shift Lever A-5 C
Relay - Start E-2 12 Switch - Side Flood F-12 A
Resistor - Blower Motor Speed C-1 6 Switch - Slip Limiter E-8 A
Resistor - Starter/Diagnostic B-5 10 Switch - Start Aid E-14 A
Sender - Conv Retr Temperature A-4 10 Switch - Steering Flow A-10 23
Sender - Coolant Temperature A-4 13 Switch - Stop Lamp A-9 D
Sender - Fuel Level B-14 14 Switch - Thermostat C-2 6
Sender - Tachometer A-4 15 Switch - Throttle Lock E-13 A
Sender - Transmission Speed A-10 16 Switch - Transmission A-10 27
Sensor - Throttle Lock Press A-9 D Switch - Turn Signal F-9 E
Solenoid - Air Conditioner Clutch B-3 2 Switch - Washer Front & Rear E- 10 A
Solenoid - Apron A-8 35 Switch - XMSN Hold B-8 C
C = Located in operator's right console.
A = Located in Tractor dash. D = Located under Tractor cab.
B = Located in cab on relay panel. E = Located in Tractor cab.
Machine locations are repeated for components located close together.
Connector Location¹
Connector Number Schematic Location
Machine
Location
CONN 1 B-15 1
CONN 2 B-14 32
CONN 3 C-13 32
CONN 4 C-12 31
CONN 5 C-12 17
CONN 6 Service Tool D-11 D
CONN 7 E-12 A
CONN 8 B-11 33
CONN 9 A-10 33
CONN 10 B-10 33
CONN 11 B-10 33
CONN 12 A-10 27
CONN 13 A-10 27
CONN 14 B-10 D
CONN 15 A-9 C
CONN 16 F-7 E
CONN 17 E-7 C
CONN 18 E-7 8
CONN 19 D-7 8
CONN 20 C-7 11
CONN 21 A-7 C
CONN 22 F-5 8
CONN 23 B-5 22
CONN 24 C-4 18
CONN 25 E-4 B
CONN 26 E-4 B
CONN 27 F-4 B
CONN 28 F-4 B
CONN 29 Diagnostic F-4 B
CONN 30 E-3 D
CONN 31 C-3 34
CONN 32 C-2 34
CONN 33 D-2 6
CONN 34 F-8 A
¹The connectors shown in this chart are harness to harness and special use
connectors. Connectors which join a harness to a component are generally
located at on near the component. See the component location chart.
Failure Mode Identifiers (FMI)¹
FMI No. Failure Description
0 Data valid but above normal operational range.
1 Data valid but below normal operational range.
2 Data erratic, intermittent, or incorrect.
3 Voltage above normal or shorted high.
4 Voltage below normal or shorted low.
5 Current below normal or open circuit.
6 Current above normal or grounded circuit.
7 Mechanical system not responding properly.
8 Abnormal frequency, pulse width, or period.
9 Abnormal update.
10 Abnormal rate of change.
11 Failure mode not identifiable.
12 Bad device or component.
13 Out of calibration.
14 Parameter failures.
15 Parameter failures.
16 Parameter not available.
17 Module not responding.
18 Sensor supply fault.
19 Condition not met.
20 Parameter failures.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Related Electrical Service Manuals
Title Form Number
Alternator: (3E-7577) RENR1252
Electronic Monitoring System (EMS) SENR2945
EPTCII for ICM Transmissions SENR9122
Starting and Charging Systems SENR2947
Starting Motor: (106-8553) SENR3581
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3E-2028 Coolant Temperature 107.0 ± 3.0° C 93.0° C Normally
(224.6 ± 5.4° C) (199.4° C) Closed
3E-6425 Coolant Temperature 38.0 ± 3.0° C 27.0° C Normally
(100.4 ± 5.4° C) (80.6° C) Closed
3E-6453 Conv Retr Temperature 129.0 ± 3.0° C 118.0° C Normally
(264.0 ± 6.0° C) (244.0° C) Closed
7X-1598 Ejector Kickout Pressure 15200 ± 280 kPa 13800 kPa MIN Normally Closed pin 1-3
(2200 ± 40 psi) (2000 psi MIN) Normally Open pin 1-2
8T-9792 Air Pressure 517.0 ± 35.0 kPa 448.0 ± 35.0 kPa Normally Closed pin 1-3
Parking Brake Pressure (75.0 ± 5.0 psi) (65.0 ± 5.0 psi) Normally Open pin 1-2
107-0612 Engine Oil Pressure 93.0 ± 21.0 kPa 70.0 ± 21.0 kPa Normally
(13.5 ± 3.0 psi) (10.2 ± 3.0 psi) Open
107-0616 Fuel Pressure 93.0 ± 21.0 kPa 69.0 ± 21.0 kPa Normally
(13.5 ± 3.0 psi) (10.0 ± 3.0 psi) Closed
114-5333 Refrigerant Pressure (AC) 275 to 1750 kpa¹ -- Normally ²
(40 to 255 psi) -- Open
125-9352 Stop Lamp Pressure 83.0 kPa MAX 48.0 ± 20.0 kPa MIN Normally
(12.0 psi MAX) (7.0 ± 3.0 psi MIN) Open
134-6547 Steering Flow 4.0 g MAX 1.5 g MIN Normally
(0.14 oz MAX) (0.05 oz MIN) Open
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.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Distribution Circuits
Accessory Circuits Continued
101
RD
Bat (+)
513
OR
A/C Compressor/Refrigerant Pressure SW
102
BU
Hd Lmp
515
GY
Blower Motor (HI)
103
YL
Aux Ckt
516
GN
Blower Motor (Medium)
105
BR
Key Sw
517
BU
Blower Motor (Low)
107
WH
Eng ShutDown
521
YL
A/C SW To Refrigerant SW
109
OR
Alt Output (+) Term.
522
WH
A/C Clutch To Thermostat SW
112
PU
Main Power Rly Output
537
GN
Turn Signal SW To Flasher
113
OR
Opr Mon Panel B+ Switched
584
YL
Wiper SW Jumper
114
GN
Warning Horn (Forward)
592
BU
DC/DC Converter Power Output
117
YL
Aux Ckt
A513
PK
DC/DC Converter Memory Output
118
GY
Aux Ckt
A518
PU
Throttle Lock (Off)
119
PK
Aux Ckt
A519
GN
Axle Suspension Sol Valve
120
YL
Aux Ckt
A520
BU
Relay To Axle Suspension Rocker SW
121
YL
Back Alarm To Lamp
A522
GN
Press SW To Ejector Detent Coil
122
BU
Aux Ckt
A523
PU
Temp Potentiometer Pos 1
123
WH
Aux Ckt
A524
BR
Temp Potentiometer Pos 2
124
GN
A/C
A525
GN
Temp Potentiometer Pos 3
125
OR
Aux Ckt
A526
PK
Electronic Water Valve Actuator
126
PK
Xmsn Ctrl
A527
BU
Electronic Water Valve Actuator
141
PK
Aux Ckt
A528
YL
Electronic Water Valve Actuator
148
WH
Aux Ckt
A529
WH
Electronic Water Valve Actuator
165
YL
Aux Ckt
A530
OR
Electronic Water Valve Actuator
173
YL
Aux Ckt
A531
BR
Throttle Lock (On)
176
OR
Aux Ckt
A532
BR
Fr Throttle Lock Sol To Control
Ground Circuits
A533
PK
Fr Throttle Lock Sol To Control
200
BK
Main Chassis
A534
OR
Tl Control To Brake SW (Sensor Supply)
201
BK
Operator Monitor Return
A541
PU
Flasher To Indicator Lights
202
BK
XMSN Ctrl
A552
GN
Bail SW To Bail Sol
203
BK
Chassis Diagnostic
A553
BU
Bail Release To Bail SW
204
BK
Opr Mon Panel
Lighting Circuits
207
BK
Starter Diagnostic
602
WH
Dome Lamp
Basic Machine Circuits
604
OR
Stop Lamp
301
BU
Starter No. 1 Sol
605
YL
Turn Lamp - Left
302
OR
Starter No. 1 Resistor To Diagnostic
606
GY
Turn Lamp - Right
304
WH
Starter Relay No. 1 Output
608
GN
Flood Lamp - Rear
306
GN
Starter Relay Coil To Neut Start SW Or Key SW
609
YL
Flood Lamp - Side
307
OR
Key SW To Neutral Start SW
610
OR
Head Lamp Basic
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
639
WH
Left Hand Stop/Tail Lamp
322
GY
Warning Horn (Forward)
640
GN
Right Hand Stop/Tail Lamp
323
WH
Fuel Pump Power
650
OR
Rear Flood / Dash Lamps
324
BU
Differential Lock Sol
Control Circuits
326
PU
Key SW "C" Term.
703
BU
XMSN Up Sol
327
PK
Shutdown Solenoid
704
GY
XMSN Down Sol
366
PK
Coil To Eng Oil Press SW
708
YL
XMSN Hold SW
Monitoring Circuits
709
OR
Sensor Power Supply
403
GN
Alternator (R) Term.
710
GN
XMSN Speed Pickup Signal
405
GY
Opr Mon Oil Press. (Low Setting)
711
BR
XMSN Lever Code 1
406
PU
Opr Mon Coolant Temp
712
WH
XMSN Lever Code 2
407
PK
Opr Mon Converter/Retarder Oil Temp
713
OR
XMSN Lever Code 3
408
WH
Opr Mon System Air Press.
714
YL
XMSN Lever Code 4
409
OR
Opr Mon Neut
715
GN
XMSN Lever Code 5
410
WH
Opr Mon Action Alarm
716
BU
XMSN Lever Code 6
411
PK
Opr Mon Master
717
BR
Bowl Apron Sol Float
412
BU
Opr Mon Cool Flow
721
BR
XMSN Gear Code 1
413
BR
Opr Mon Fuel Press.
722
WH
XMSN Gear Code 2
415
GN
Opr Mon Test SW
723
OR
XMSN Gear Code 3
417
GY
Primary Ster SW
724
YL
XMSN Gear Code 4
419
YL
Opr Mon Parking Brake
725
GN
XMSN Gear Code 5
421
BU
Opr Mon Fault Lamp
726
BU
XMSN Gear Code 6
422
YL
Opr Mon Warning Horn
733
BR
Switching Gear Code 1 Front
423
PU
Opr Mon Test SW
734
WH
Switching Gear Code 2 Front
441
OR
Eng Coolant Temp Gauge
735
OR
Switching Gear Code 3 Front
444
BU
Converter/Retarder Oil Temp Gauge
736
YL
Switching Gear Code 4 Front
445
GN
Converter/Retarder Oil Temp Gauge
737
GN
Switching Gear Code 5 Front
447
PK
Fuel Level Gauge
743
PU
Switching Neut/Run SW
449
BU
Spdom Sender (Signal No. 1)
D774
BU
Rev Elev Detent
450
YL
Tach Sender (+)
E723
GN
Throttle Lock Press Sensor To Control Input
B435
PU
Eng Coolant Temp Gauge
E737
PU
Filter W/L To Temp SW
B485
BU
Pump Case Drain Filter Differential Press
E766
GN
Auger SW EPTCII
B486
YL
Charge Pump Filter Differential Press
E767
BU
Fwd Auger/Elev Sol
B487
WH
Motor Case Drain Filter Differential Press
E768
BU
Cushion Hitch RelayTo Diode
Accessory Circuits
E769
OR
Bail Relay To Diode
500
BR
Wiper - Front (Park)
E771
BU
Jumper Pin 1 To 7 - Auger Relay
501
GN
Wiper - Front (Low)
E772
GN
Jumper Pin 1 To 2 - Auger Relay
502
OR
Wiper - Front (HI)
G718
YL
Elevator Control Signal (EPTCII)
503
BR
Wiper - Rear (Park)
892
BR
VMIS Start Mod Right (-) Port/CAT Data Link (-)
504
YL
Wiper - Rear (Low)
893
GN
VMIS Start Mod Right (+) Port/CAT Data Link (+)
505
BU
Wiper - Rear (HI)
D834
PU
Forward Auger SW To Rev Auger SW
506
PU
Washer - Front
D836
GN
Forward Auger SW To Slip Limiter SW
507
WH
Washer - Rear
D837
GY
Slip Limiter Solenoid
508
PU
Radio Speaker - Left
D838
OR
Auger Solenoid
509
WH
Radio Speaker - Left (Common)
D996
PU
XMSN Cont Service Set
511
BR
Radio Speaker - Right
D997
YL
XMSN Cont Service Clear
512
GN
Radio Speaker - Right (Common)
Resistor, Sender, and Solenoid Specifications
Part No. Component Resistance (Ohms)¹
3E-1906 Solenoid - A/C Clutch 14.4 ± 0.6
3E-7259 Sender - Conv Retr Temp 6
3E-7886 Sender Tachometer 110-200
6N-5926 Sender - Coolant Temperature 524-586 @ 115.6 C (240.1 F)
5806-7264 @ 54.4 C (129.9 F)
6T-2217 Resistor - Starter/Diagnostic 150 ± 7.5
7T-9074 Solenoid - Forward Horn Valves 74.0 ± 7.4
8T-8692 Solenoid - CH Valve 34.2
9G-1950 Resistor - Blower Motor Speed Overall 2.0 ± 0.1; Tap 1.0 ± .05
9G-4365 Solenoid - Start Aid 6
9X-9482 Solenoid - Front Throttle Lock 68
Diff Lock
110-6465 Solenoid - Engine Shutdown 5.12 ± 0.26
116-8653 Potentiometer - Temp Selector 5000 ± 500
144-6292 Solenoid - Upshift 32.6 ± 1.6
Downshift
¹ At room temperature.
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.
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
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
35
33
34
7
A
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
29
30
31
32
35
33
34
7
Machine Harness Connector and Component Locations
SENR6393-02
December 1999
621F and 623F Wheel Tractor-Scraper
Electrical System
621F Tractor:
4SK1-UP
8PL1-UP
623F Tractor:
6BK1-UP
621F Scraper:
5JK1-UP
9NL1-UP
623F Scraper:
5SG480-UP
©
1999 Caterpillar
All Rights Reserved
Printed in U.S.A.
1
4
6
5
3
2
L52
L51
L51
L50
L50
L49
L49
L49
L49
L48
592-BU
L46
L46
L45
L45
L44
L44
L43
L43
L42
L42
L38
L40
L35
L27
L38
L40
L37
L33
L27
L41
L41
L36
L36
L32
L39
L34
L48
L48
L37
L38
L38
L37
L35
L34
L34
L36
L36
L33
L33
L32
L32
L29
L38
L29
L33
L31
L31
L40
L40
L39
L39
L30
L30
L30
L30
L30
L41
L41
L41
L29
L28
L28
L28
L28
L27
L27
L27
L26
L37
L26
L26
L26
L26
L27
L27
L26
L24
L24
L25
L25
L25
L24
L23
L23
L22
L22
L22
L23
L24
L25
L25
L23
L22
L26
L22
L25
L24
L23
L22
L25
L9
L16
L21
L21
L11
L11
L18
L12
L12
606-GY
L12
L18
L19
L19
L20
L20
L19
L19
422-YL
L8
L8
L8
421-BU
L9
L9
L18
L13
L13
L13
L14
L14
L9
L9
L8
L21
L15
L18
L7
L16
L15
L9
L18
L7
L15
L10
L21
L14
L13
L13
L9
L12
L11
L10
L9
L8
L8
L7
L6
NOTE E
200-BK
327-PK-14
606-GY
605-YL
202-BK
L6
3
1
2
D
C
B
L47
A
200-BK
DDD
2
3
5
6
4
1
201-BK
12
11
10
9
E737-PU
B487-WH
B485-BU
B486-YL
E737-PU
G
G
D834-PU
G
D838-OR
B485-BU
B486-YL
B487-WH
8
7
6
5
4
3
2
1
592-BU
AUGER SOL
E767-BU
D838-OR
D836-GN
CONTROL GP
RELAY 1069188
D836-GN
D836-GN
614-PU
D838-OR
SLIP LIMITER
SW 1063838
200-BK
200-BK
592-BU
D837-GY
E766-GN
AUGER SW
202-BK
D834-PU
D834-PU
165-YL
7
4
6
5
8
3
1
2
200-BK
D837-GY
E737-PU
30A
D838-OR
10
9
1
2
3
4
5
6
7
8
D834-PU
537-GN
605-YL
606-GY
Y
D
605-YL
606-GY
173-YL
TURN
SIGNAL SW
2T-3413
Y
Y
+ BATTERY
LOAD
PILOT
YELLOW
GREEN
RED
BLUE
FLASHER
3E-7527
A541-PU
3
2
1
614-PU
200-BK
TURN
PARK
605-YL
3
2
1
614-PU
200-BK
606-GY
TURN
PARK
WH-18
BK-18
RD-18
WH-18
BK-18
RD-18
LEFT
TURN LAMP
6V1119
605-YL
200-BK
RIGHT
TURN LAMP
6V1119
606-GY
10A
202-BK
ENGINE COMPARTMENT
ENGINE COMPARTMENT
OPERATOR STATION
OPERATOR STATION
200-BK
18
19
20
2
6
4
1
5
11
3
7
9
10
8
12
13
L52
126-PK
OPERATOR STATION
14
DD
G
16
9
8
608-GN
L6
14
12
15
11
10
2
17
13
7
6
5
4
200-BK
3
1
ID CODE 4
6
7
8
9
10
B486-YL
201-BK
E737-PU
141-PK
202-BK
KK
614-PU
B487-WH
L6
G
D837-GY
L32
A-5
A-5
A-4
A-5
A-5
A-5
E737-PU
200-BK-10
E737-PU
592-BU-10
E767-GN
200-BK
606-GY
640-GN
200-BK
639-WH
LL
LL
CONN 2
STOP/TAIL
LAMP
CONTROL
7X1670
1
2
200-BK
3
4
WH
GN
PU
OR
LEFT LAMP
RIGHT LAMP
TAIL IN
STOP IN
639-WH
640-GN
604-OR
614-PU
165-YL
E737-PU
E772-GN
E772-GN
E771-BU
E771-BU
K
B485-BU
K
2
165-YL
165-YL
165-YL
1
101-RD-10
C
C
Z
3
2
1
L1
L1
L2
L2
L2
L1
L2
2
1
2
3
2
1
4
3
2
1
L5
606-GY
605-YL
605-YL
606-GY
606-GY
605-YL
173-YL
TURN SIGNALS(EEC)
173-YL
1
611-PU-14
610-OR-14
611-PU-14
BASE
9G3057
614-PU
614-PU
B
A
148-WH
4
3
2
1
22
21
17
18
19
20
16
15
14
13
619-GN
12
K
11
10
9
8
7
6
5
4
3
2
202-BK
A518-PU
743-PU
502-OR
500-BR
501-GN
118-GY
506-PU
507-YL
521-YL-14
515-GY-14
516-GN-14
517-BU-14
200-BK-14
505-BU
503-BR
504-YL
119-PK
124-GN-14
307-OR
105-BR
308-YL
326-PU
A523-PU
A524-BR
A525-GN
614-PU
609-YL
103-YL
117-YL
202-BK
A518-PU
619-GN-14
611-PU-14
608-GN
102-BU-14
123-WH
322-GY
310-PU
A531-BR
101-RD-10
1
10A
L
L
L
L
H
10A
10A
101-RD
200-BK
614-PU
204-BK
422-YL
201-BK
410-WH
200-BK
7
6
5
4
3
2
1
619-GN
XSMN CONTROL
SOLENOIDS
321-BR
45
6
1
2
3
A
B
D
C
1
2
3
4
5
6
D
C
4
103-YL
5
6
584-YL
202-BK
87(4)
85(5)
1
GROUND
B+
+12V RADIO
GROUND (RADIO)
+24V IN(MEMORY)
+12V MEMORY
2
3
2
5
6
1
4
200-BK
120-YL
592-BU
200-BK
103-YL
A513-PK
3
86(2)
1
A
B
200-BK
A513-PK
10A
10A
D
F
E
E
E
176-OR-10
C
4
5
6
200-BK
2 3
D
C
3
4
5
8
9
7
10
2
1
6
LEVER 1
LEVER 2
LEVER 3
LEVER 4
LEVER 5
NEUTRAL
GROUND
GND VERIFY
103-YL
32
D
C
12
3
4
5
6
D
C
1
2
3
3
2
1
4
5
6
A
B
D
C
5
2
6
3
N/C
N/O
COM
A
B
L3
L3
D
C
3
2
A
B
D
C
BACKUP
ALARM SW
6G4195
712-WH-18
713-OR-18
714-YL-18
715-GN-18
202-BK-18
L5
716-BU-18
711-BR-18
321-BR
200-BK
L4
118-GY
118-GY
715-GN-18
714-YL-18
4
L1
121-YL
114-GN
102-BU-14
103-YL
103-YL
5
107-WH
200-BK
200-BK
200-BK
103-YL
KEY START
6
1
2
200-BK
3
4
D
C
ENGINE SHUT-DOWN
200-BK
619-GN
611-PU
200-BK
HEADLIGHT
DIMMER SW
1022273
611-PU-14
610-OR-14
200-BK
614-PU
614-PU
584-YL
200-BK
200-BK
200-BK
200-BK
614-PU
200-BK
713-OR-18
712-WH-18
711-BR-18
202-BK-18
716-BU-18
614-PU
614-PU
614-PU
103-YL
1
2
3
6
200-BK
U
U
A
B
D
C
3
5
2
A
B
D
BK
118-GY
GN
GY
BR
OR
4
502-OR
501-GN
500-BR
2
3
1
H
L
MOTOR
T
200-BK
200-BK
592-BU
ANTENNA
9W3072
200-BK
101-RD
A513-PK
592-BU
200-BK
508-PU
509-WH
511-BR
512-GN
12V RADIO
3E7140
M
F
RIGHT SPEAKER
6T7695
512-GN
511-BR
LEFT SPEAKER
6T7695
508-PU
509-WH
511-BR
512-GN
F
602-WH
103-YL
DOOR DOME
LAMP SW
(NOTE B) 3T3133
103-YL
501-GN
118-GY
500-BR
502-OR
5K0484
200-BK
3
200-BK
103-YL
602-WH
2
DOME LAMP
8C9678
YL
RD
BK
WH
WH/BK
GY
GY/BK
5
6
3
1
2
7
8
4
614-PU
200-BK
614-PU
200-BK
614-PU
200-BK
A523-PU
A524-BR
A525-GN
326-PU
307-OR
105-BR
ST
ON
OFF
B
S
C
R
308-YL
200-BK-14
500-BR
502-OR
614-PU
609-YL
117-YL 614-PU
609-YL
117-YL
501-GN
502-OR
501-GN
118-GY
119-PK
504-YL
507-WH
505-BU
C
506-PU
505-BU
503-BR
APRON SOLENOID
9X9750
124-GN-14
743-PU
A531-BR
310-PU
L5
L5
322-GY
123-WH
103-YL
102-BU-14
5
6
A
B
515-GY-14
516-GN-14
517-BU-14
516-GN-14
521-YL-14
515-GY-14
608-GN
619-GN-14
521-YL-14
NEUTRAL RUN SW
3E7161
743-PU
APRON SW
1022162
614-PU
200-BK
202-BK
3E7164 SINGLE ENGINE
3E7163 TWIN ENGINE
614-PU
200-BK
201-BK
423-PU
415-GN
503-BR
504-YL
614-PU
200-BK
REAR WIPER SW
3E7169
500-BR
501-GN
614-PU
200-BK
FRONT WIPER SW
3E7157
HEADLAMP SW
3E7150
FAN SPEED SW
3E7156
HEAT OR A/C SW
3E7154 STD
3E7155 ATT
D
517-BU-14
C
B-8
148-WH-14
00
200-BK
114-2539NN
THIS SCHEMATIC IS FOR THE 621F/623F
WHEEL TRACTOR SCRAPER
614-PU
200-BK
103-YL
NN
L4
L3
614-PU
200-BK
124-GN-14
EJECTOR
DETENT
619-GN-14
102-BU-14
124-GN-14
THROTTLE
LOCK SW
3E7162
614-PU
200-BK
202-BK
A518-PU 204-BK
FORWARD HORN SW
2T3360
322-GY
START AID SW
3E7160
609-YL 117-YL
310-PU
614-PU
200-BK
308-YL
SIDE FLOOD
LAMP SW
ATTACHMENT
3E7153
103-YL
200-BK
614-PU
200-BK
614-PU
FLOOD LAMP SW
3E7152
608-GN
200-BK
614-PU
200-BK
123-WH
RELAY AS.
3E5239
202-BK
5
A518-PU
A518-PU
148-WH-14
200-BK
14
200-BK-14
200-BK-14
611-PU-14
200-BK-14
619-GN-14
610-OR-14 102-BU-14
200-BK
614-PU
614-PU
200-BK
200-BK
165-YL
126-PK
117-YL
125-OR-14
L2
APRON/
DETENT
608-GN
614-PU
614-PU
DIFF LOCK SW
1460235
A531-BR
202-BK
200-BK
614-PU
609-YL
200-BK
609-YL
200-BK
PANEL
LAMP
7N5876
614-PU
619-GN
619-GN
614-PU
200-BK
308-YL
PANEL
LAMP
7N5876
L1
01
506-PU
REAR
WIPER
1028997
200-BK
200-BK
614-PU
200-BK
200-BK
614-PU
02
L3
01
L3
200-BK
L2
L1
200-BK
614-PU
614-PU
200-BK
200-BK
614-PU
614-PU
200-BK
614-PU
200-BK
614-PU
200-BK
118-GY
614-PU
507-WH
614-PU
200-BK
+B MEMORY
B+
GROUND
L.H. SPKR+
L.H. SPKR-
R.H. SPKR+
R.H. SPKR-
ANTENNA
148-WH-14
FRONT & REAR
WASHER
3E7158
119-PK
30(1)
105-BR
119-PK
123-WH
113-OR
118-GY
122-BU
120-YL
10A
FUSE BLOCK
9W2035
101-RD
101-RD-14
101-RD-14
10A
FLOOD LAMPS/GAGES
PANEL, DOME, STOP/TAIL
LAMP BREAKER 9G9882
FUEL PUMP10A
AIR DRYER
10A
HEAD LAMP
BREAKER 3T2662
10A SIDE FLOOD LAMPS
HORN
FUSE
9W1442
200-BK
A513-PK
200-BK
592-BU
614-PU
200-BK
1
BK
RD
141-PK
WH
10A
OPERATOR MONITOR
BACKUP ALARM
10
15
23
FRONT WIPER
RADIO
10A
10A
REAR WIPER
10A
10A
10A
200-BK
614-PU
602-WH
30
VOLTAGE
CONVERTER 3E8646
+12 V (OUT)
IGNITION
GROUND
176-OR-10
200-BK
200-BK-10
101-RD
165-YL
30A
+24 V (IN)
W
W
CONVERTER
BREAKER
6N9349
200-BK
EEC
OUTLET
614-PU
1
PANEL LAMP
8D1429
410-WH
201-BK
422-YL
204-BK
(TRACTOR)(TO TRACTOR EMS)
9G9813
119-PK
119-PK
103-YL
RD
BK
SOCKET AS.
9R7941
200-BK-10
1
M
F
BR-18
WH-18
OR-18
YL-18
GN-18
BU-18
BK-18
E
F
H
D
H
H
FOR FM COMMUNICATIONS
RADIO
GEAR 1
GEAR 2
GEAR 3
GEAR 4
GEAR 5
GROUND
GND VERIFY
10
9
8
7
6
5
4
3
2
J
I
G
C
B
A
592-BU-10
200-BK-10
NOTE E: IN-LINE FUSE 3K8782 W/ 9G4293 AND
9G4292 HOUSINGS SHOULD BE USED W/ 15A CONVERTER
3
2
1
H
CB RADIO
592-BU
CH/BAIL/DETENT SOLENOIDS
200-BK
1
2
200-BK
592-BU-10
CCC
1
2
2
3
2
1
1
2
3
4
5
6
7
8
1
2
1
173-YL
X
605-YL
606-GY
200-BK
614-PU
L47
PK
GY
BU
WH
RD
BK
BR
PU
1
2
165-YL324-BU
G
SERVICE
TOOL
CONNECTOR
9W1951
892-BR
D997-YL
D996-PU
893-GN
A B C D E F G H J
CLEAR
SWITCH
9D3721
SET
SWITCH
9D3721
G
202-BK
1
2
3
4
5
STRT REL/SOL OUT
BU ALRM/SH SYNC
NEUTRAL (EMS)
NEUTRAL (AUX)
KEY START INPUT
SERVICE SET SW
SERVICE CLEAR SW
GROUND
CAT DATA LINE +
CAT DATA LINE -
3E9233
TRANSMISSION CONTROL
V
A
B
C
OR
YL
GN
202-BK
A534-OR
PRESS
SENSOR
THROTTLE LOCK
PRESS SENSOR
3E6143
E723-GN
614-PU
V
A532-BR
A533-PK
+V BATTERY
BR
RD
OR
YL
GN
BU
PU
GY
FRONT THROTTLE LOCK
SOLENOID 9X9482
D774-BU-14
D774-BU
D774-BU
141-PK-14
141-PK-14
A553-BU-14
A520-BU-14
E769-OR
202-BK
202-BK
202-BK
A533-PK
A532-BR
204-BK
202-BK
202-BK
614-PU
A519-GN
200-BK
A520-BU
1
2
3
C
A518-PU
A531-BR
202-BK
141-PK
IMPLEMENT
DETENTS
BAIL
A519-GN
200-BK
A522-GN
VALVE GP
1206683
RD
BK
D774-BU
CUSH HITCH
30(1)
RELAY AS.
3E5239
86(2)
85(5)
87(4) 87(4)
85(5) 86(2)
RELAY AS.
3E5239
30(1)
87(4)
85(5)
86(2)
RELAY AS.
3E5239
30(1)
D
A
B
121-YL
321-BR
202-BK
1
2
7
4
5
6
3
GROUND
+ BATTERY
SPEED IN
WH-18
BK-18
GY-18
OR-18
PK-18
GN-18
YL-18
SPEEDOMETER
XSMN SPEED
DISTRIBUTOR
3T5438
410-WH
204-BK
421-BU
202-BK
423-PU
405-GY
407-PK
201-BK
417-GY
113-OR
419-YL
408-WH
409-OR
403-GN
412-BU
406-PU
413-BR
450-YL
444-BU
441-OR
123-WH
445-GN
200-BK
614-PU
B435-PU
447-PK
449-BU
BU
RD
123-WH
202-BK
710-GN
449-BU
717-BR
200-BK
BK
C
200-BK
614-PU
306-GN
326-PU
107-WH
200-BK
OR-18
WH-18
YL-18
BU-18
BK-18
RD-18
+ BATTERY
GROUND
ENG SOL
RESET
OFF (KEY)
OFF
7
6
5
4
3
2
1
200-BK
A552-GN
200-BK
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
200-BK
141-PK
24
23
22
21
20
19
18
17
16
15
14
13
201-BK
417-GY
419-YL
12
11
10
9
8
7
6
5
4
3
2
1
202-BK
366-PK
366-PK
126-PK
1
2
1
2
717-BR
165-YL
201-BK
200-BK
FRAME
GROUND
721-BR
722-WH
723-OR
ENGINE SHUTDOWN
CONTROL
9G9287
614-PU
1
2
D
141-PK
D
FRONT GR 5
FRONT GR 4
FRONT GR 3
FRONT GR 2
BBB
FRONT GR 1
ID CODE 3
ID CODE 2
ID CODE 1
ID CODE 0
+10V
GND VERIFY
GND VERIFY
XMSN SP
GEAR 1
27
37
36
30
29
5
16
LEVER 5
LEVER 4
LEVER 3
LEVER 2
LEVER 1
HOLD SW
GROUND
DOWN SOL
BBB
UP SOL
GEAR 5
GEAR 4
GEAR 3
GEAR 2
+ BATTERY
15
14
13
12
11
19
18
17
20
6
7
8
2
10
9
4
3
26
25
24
23
22
21
28
35
34
33
32
31
1
737-GN
736-YL
735-OR
734-WH
733-BR
1
2
321-BR-14
121-YL-14
EE
BK-14
BK/PK-14
BACKUP
ALARM
3T1815
MUR440
D1
D2
3
2
4
3
2
200-BK
1
MUR440
4
409-OR
724-YL
307-OR
126-PK
AIR PRESS
1W3306
1
141-PK-14
202-BK
202-BK
E766-GN
202-BK
606-GY
604-OR
614-PU
321-BR
121-YL
605-YL
447-PK
323-WH
200-BK
447-PK
BK
PK
200-BK
202-BK
202-BK
716-BU
710-GN
709-OR
704-GY
703-BU
726-BU
725-GN
724-YL
723-OR
722-WH
721-BR
715-GN
714-YL
713-OR
712-WH
711-BR
708-YL
D
N
5 4 3
A552-GN
306-GN
N
N
G
G
G
G
G
1
G
G
G
G
614-PU
G
2
G
G
G
G
G
725-GN
614-PU
614-PU
614-PU
A519-GN
A519-GN
A519-GN
5 4
614-PU
E768-BU
366-PK
A553-BU
CH SWITCH
3E7167
141-PK
THROTTLE LOCK
CONTROL 102-1791
24
23
22
21
20
19
18
17
16
15
3 2
STOP-TAIL
LAMP
6V1108
STOP-TAIL
LAMP
6V1108
1
A530-OR
A529-WH
A528-YL
A527-BU
A526-PK
14
5
A525-GN
A524-BR
A523-PU
124-GN-14
200-BK
13
12
11
10
9
8
4 3
7
6
5
726-BU
200-BK-14
715-GN-18
200-BK-14
522-WH-14
THERMOSTAT SW
3E5464
606-GY
604-OR
614-PU
321-BR
121-YL
605-YL
447-PK
323-WH
200-BK
4
L7
10
7
4
3
9
1
6
5
2
8
MM
3
2
1
2
RESISTOR
9G1950
516-GN-14
516-GN-14
T
200-BK-14
515-GY-14
517-BU-14
1
WH/RD-14
BK-14
522-WH-14
515-GY-14
BLOWER
9X9363
517-BU-14
MOTOR
37
35
36
33
34
31
32
29
30
27
28
9W2111
NOTE C
9W2111
NOTE C
201-BK
411-PK
204-BK
421-BU
LAMP
7X2058
B435-PU
445-GN
614-PU
123-WH
614-PU
200-BK
447-PK
449-BU
450-YL
444-BU
441-OR
123-WH
445-GN
B435-PU
449-BU
SPEEDOMETER
3E3762
614-PU
614-PU
200-BK
444-BU
411-PK
410-WH
201-BK
201-BK
407-PK
417-GY
405-GY
413-BR
403-GN
412-BU
406-PU
409-OR
408-WH
419-YL
113-OR
COOLANT
TEMP
4W0483
447-PK-18
FUEL
9X3496
IGN
SEND
GRD
CONVERTER
TEMP
3E7240
LAMP
ALTERNATOR
COOL FLOW
COOL TEMP
FUEL PR
+ BATTERY
PARK BK
AIR PR
NEUTRAL
ENG OIL PR
TC OIL TEMP
SUPPL STEER
GROUND
TEST
4
3
2
1
1
2
3
4
200-BK
1
2
4
5
606-GY
605-YL
200-BK
604-OR
614-PU1
2
E-7
1012748
9G0549
1012747
1012778
1035697
2G4177
AA
BB
CC
DD
EE
FF
CABLE AS.
CAB GROUND
SWITCH GROUND
WIRE AS.
EEE
1
2
HARNESS AS.
ATT
ATT
15 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
C-14018I1863
C-14
A-14
00
01
02
00
8I1076
8X5579
00
MM
C-2
F-8
B-10
LL
D-1
B-10
A-10
ATT
C-4
D-2
F-4
F-7
B-11
D-12
A-7
B-7
F-5
D-7
C-7
B-7
C-3
C-4
01
01
00
01
01
00
00
ATT
00
01
01
00
00
00
02
01
03
03
03
06
01
106-2052
106-2051
160-5742
102-5894
3E6945
03
8W3628
ATT
2W0104
3E6946
8X7550
141-2026
151-5299
157-2441
8X9692
8X9553
8X9205
8X7794
8X9713
8X8519
144-6277
Z
Y
X
W
V
U
T
ATT
P
N
M
L
K
J
H
G
F
E
ELEV NEU
D
G718-YL
202-BK
G718-YL
202-BK
G718-YL
ELEVATOR
CONTROL
G
708-YL
708-YL
202-BK
AIR
CONDITIONER
CLUTCH
COIL AS.
3E-1906
ATT
2
1
1
2
2
1
T
L
2
1
1
2
ATT
H
(180-4521 CHG 00)
A
A
A
A
A
BK-6
B-15029G6259
ATT
F-9
149-2749
B-3
NOTE
200-BK
LOC
F-3
A-5
2
3
1
LL
00
00
00
00
07
2W8662
114-2694
109-7911
10
EE
102-4581
9F4337
EEE
1
2
A
2
1
9
SWITCH AS.
PRESS (HIGH/LOW)
1145333
NOTE A
7 6
LEFT TURN
PARK LAMP
1295688
RIGHT TURN
PARK LAMP
1295688
10
1
DDD
2
CCC
BBB
WATER
VALVE
ACTUATOR
1498195
ENG OIL SW
1070612
ENG OIL SW
1070612
7
COOLANT SW
3E2028
SHIFT LEVER SW
1267896
1
3
KK
AAA
3
KK
4
5
6
7
8
2
MM
KK
FUEL SENDER
1158505
4
2
1
LAMP
8D1429
1
2
3
3
2
1
LAMP
8D1429
TACH/HR
METER
1499960
WIRE AS.
1484505
AA
BK-00
203-BK
DISCONNECT SW
7N0718
A518-PU
A531-BR
B435-PU
447-PK
445-GN
743-PU
423-PU
421-BU
202-BK
202-BK
204-BK
410-WH
141-PK
121-YL
XMSN HOLD SW
1337600
608-GN
3
1068704
FILTER INDIC
DOWNSHIFT
SOLENOID
1446292
123-WH
449-BU
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
10
11
12
13
14
21
23
24
25
26
27
28
29
30
31
32
33
34
35
36
40
39
38
1
11
22
37
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
200-BK-14
7G1060
FRAME
GROUND
CAB
GROUND
4
165-YL
BK
PANEL
LAMP
7N5876
504-YL
GN
GY
BR
OR
4
505-BU
119-PK
503-BR
2
1
3
EJECTOR KICKOUT SW
7X1598
MOTOR
T
322-GY
619-GN-14
611-PU-14
122-BU
311-WH
310-PU
609-YL
200-BK-14
UPSHIFT
SOLENOID
1446292
TRANSMISSION
SPEED SENDER
1440178
322-GY
307-OR
105-BR
200-BK
TRANSMISSION SW
(TRACTOR)
1188471
308-YL
307-OR
101-RD-10
103-YL
118-GY
141-PK
107-WH
121-YL
114-GN
165-YL
126-PK
117-YL
125-OR-14
112-PU
112-PU
112-PU
112-PU
112-PU
112-PU
112-PU
101-RD
7
6
327-PK-14
200-BK-14
E737-PU
5
4
3
2
1
307-OR
CAB
GROUND
200-BK-8
306-GN
202-BK
515-GY-14
516-GN-14
517-BU-14
9
124-GN-14
10
1
8
5
9
6
2
7
BOWL
FLOOD
LAMP
9X1439
G
3
7
4
A525-GN
A524-BR
A523-PU
200-BK
FORWARD
HORN
SOLENOID
7T9074
322-GY
200-BK-14
114-GN
B
366-PK
RD-00
CCAA
POSNEGPOSNEG
BK-00
BK-00
BB
12V BATTERY
3T5760
12V BATTERY
3T5760
409-OR
CONTROL
BOARD AS.
1498217
522-WH-14
200-BK-8
112-PU-8
308-YL
304-WH
507-WH
506-PU
TEMP
SELECTOR
(POT)
1168653
200-BK
308-YL
201-BK
200-BK
200-BK
10
9
8
107-WH
107-WH
T
306-GN
326-PU
306-GN
107-WH
419-YL
417-GY
200-BK-14
327-PK-14
366-PK
608-GN
366-PK
327-PK-14
366-PK
450-YL
366-PK
VOLTAGE CONVERTER
1191733
200-BK
501-GN
118-GY
500-BR
502-OR
103-YL
5
506-PU
507-WH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
450-YL
200-BK
308-YL
105-BR
506-PU
507-WH
200-BK
200-BK
200-BK
REAR
WASHER
7T8891
FRONT
WASHER
7T8891
MOTOR
MOTOR
101-RD-10
112-PU
105-BR
119-PK
123-WH
304-WH
112-PU-8
200-BK
A552-GN
201-BK
304-WH
109-OR-8
109-OR-8
304-WH-8
102-BU-14
114-GN
9
114-GN
X
7
6
5
4
3
C
J
J
J
T
T
K
K
K
K
2
1
X
513-OR-14
522-WH-14
202-BK
202-BK
1
2
START
RELAY
3E7279
MAIN
RELAY
3T0376
K
K
K
K
A519-GN
200-BK
2
CH SOLE VALVE
8T8692
K
C
1
323-WH
323-WH
LAMP
7X2058
2
1
604-OR
103-YL
C
120-YL
C
614-PU
203-BK
101-RD-10
C
307-OR
103-YL
109-OR
109-OR-4
109-OR-8
109-OR-8
C
C
DIAGNOSTIC CONNECTOR
C
101-RD-4
109-OR-4
80
ALT
BREAKER
9S4693
ATCH
9S0174
15
112-PU-14
124-GN-14
BLOWER
MOTOR
BREAKER
6N8589
202-BK
C
C
113-OR
118-GY
122-BU
C
C
A
20
19
18
17
16
15
14
13
24
19
25
8
18
17
15
9
11
22
1
20
21
14
16
6
23
5
4
2
3
12
10
13
7
6
12
8
5
4
9
1
11
10
2
7
3
101-RD-4
101-RD
304-WH-8
112-PU
308-YL
304-WH
109-OR
105-BR
311-WH
310-PU
302-OR
207-BK
C
BK
1
2
RD
BU
165-YL
592-BU
C
C
C
201-BK
200-BK
1
2
592-BU
165-YL
4
3
2
1
120-9288
408-WH
201-BK
AIR SW
8T9792
743-PU
736-YL
737-GN
734-WH
735-OR
126-PK
733-BR
202-BK
445-GN
423-PU
204-BK
422-YL
421-BU
3
321-BR
121-YL
604-OR
614-PU
FRONT
WIPER
1028997
CONV RETR SENDER
(TRACTOR)
3E7259
12V BATTERY
3T5760
12V BATTERY
3T5760
LO BEAM
HEAD LAMP
9X6874
LO BEAM
HEAD LAMP
9X6874
201-BK
1
2
200-BK
608-GN
447-PK
323-WH
200-BK
PARKING
BRAKE SW
8T9792
201-BK
419-YL
101-RD
407-PK
2
200-BK
A
1
(CUSH/BAIL)
122-BU
A
A
P
310-PU
202-BK
BB
ARC SUPPRESSOR
611-PU-14
619-GN-14
609-YL
A
STOP
LAMP SW
1259352
ARC SUPRESSOR
1058827
2
1
10
W/O STEERING SW
CONNECT PLUG D TO
RECEPTACLE D
101-RD-4
311-WH
BU
RD
BK
TRANSMISSION
BRAKE SENSOR GND
FF
203-BK
202-BK
207-BK
619-GN-14
SIDE FLOOD
LAMP
9X1439
SIDE FLOOD
LAMP
9X1439
BK-00
RESISTOR
6T2217
417-GY
201-BK
GROUND
SIGNAL
+V
C
B
A
TO ENG
BLOCK
HI BEAM
HEAD LAMP
9X7166
HI BEAM
HEAD LAMP
9X7166
BK-18
609-YL
CUTTING
EDGE
FLOOD
LAMP
9X1439
301-BU
NEG POS NEG POS
200-BK
2
1
302-OR
A532-BR
A533-PK
B435-PU
T
327-PK-14
OPERATOR STATION
201-BK
BK-18
EE
AAA
AA
126-PK
A552-GN
TO
FRAME
G S
MTR BAT
MOTOR
AUX START
RECEPTACLE
BK-00
RD-00
BK-00
BK
BK-6
RD-00
304-WH-8
200-BK-8
200-BK
202-BK
726-BU
725-GN
724-YL
723-OR
722-WH
721-BR
2
1
2
1
COOLANT SENDER
6N5926
ENG SHUTDOWN SOLENOID
1106465
710-GN
2
BK
BK
CC
324-BU
200-BK
406-PU
441-OR
9
444-BU
2
1
2
1
2
1
202-BK
202-BK
202-BK
709-OR
703-BU
704-GY
417-GY
201-BK
611-PU-14
310-PU
311-WH
122-BU
201-BK
2
GN
GN
8
7
6
STARTER
1068553
TACHOMETER
SENDER
3E7886
COOLANT SW
3E2030
COOLANT SW
3E6425
7
1
5
4
6
3
2
8
1
A
125-OR-14
FUEL SW
1070616
200-BK
1
200-BK
327-PK-14
START AID
SOLENOID
9G4365
B
200-BK-14
CONV RETR SW
3E6453
DIFF LOCK
SOLENOID
9X9482
200-BK
101-RD
2
1
W
112-PU
ALTERNATOR
3E7577
T
1
2
T
405-GY
207-BK
521-YL-14
B
A
A
200-BK-8
109-OR-4
366-PK
441-OR
450-YL
444-BU
311-WH
522-WH-14
412-BU
403-GN
201-BK
413-BR
405-GY
407-PK
406-PU
101-RD-4
304-WH-8
302-OR
201-BK
413-BR
405-GY
407-PK
109-OR-4
403-GN
BK-18
BK-18
2
1
2
1
AIR DRYER
2G2159
413-BR
412-BU
311-WH
310-PU
T
323-WH
1
2
ALT
+
R
CHGPART NO.
KEY START SW
9G7641
STEERING SW
1346547
IDENT
E-3
B
A
NOTE C: SHELL 8T9722
SPRING 7V8390
BUSHING 6D4162
CONTACT 6D4161
ATCH WIRE, CABLE &
COMPONENT
NOTE B: NORMALLY CLOSED WHEN DOOR OPEN
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
AND XMSN SHIFTER IN NEUTRAL
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
OPERATOR STATION
A
200-BK
SWITCH OFF INPUT
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
BLUE
GREEN
BU
GN
RD
714-YL-18
WH
SWITCH ON INPUT
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
BRK PRESS SNSR SPLY 5V
BRAKE PRESS INPUT-SIG
SOL DRV OUTPT LSIDE
713-OR-18
712-WH-18
SOL DRV OUTPT HSIDE
1
19
8
9
20
3
12
6
13
5
7
17
16
2
4
14
18
10
11
15
450-YL
614-PU
IGN
SEND
GRD
614-PU
614-PU
441-OR
GRD
SEND
IGN
LAMP
7X2058
LAMP
7X2058
711-BR-18
IGN
SEND
GRD
GRD
SIG
415-GN
200-BK
GROUND
200-BK
200-BK
IGN
123-WH
123-WH
123-WH
200-BK
123-WH
200-BK
123-WH
202-BK
423-PU
410-WH
204-BK
25
26
23
24
21
22
19
20
17
18
15
16
9X7801
13
14
11
12
9
10
7
8
200-BK
W
421-BU
202-BK
5
6
3
4
200-BK
324-BU
608-GN
710-GN
704-GY
703-BU
709-OR
716-BU-18
1
2
E95492
MASTER ACTION LAMP (SCRAPER)
MASTER ACTION LAMP (TRACTOR)
ACTION ALARM
GAUGE
ACTION ALARM
605-YL
ELECTRONIC MONITORING
SYSTEM (EMS)
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAUGE
TO MACHINE STRUCTURE
ELECTRONIC MONITORING SYSTEM
(EMS) TEST SW
14
15 13 12 11 10 9 8 7 6 5 4 3 2 114
CONN 1
CONN 3
CONN 4
CONN 5
CONN 6
CONN 7
CONN 8
CONN 10
CONN 11
CONN 12
CONN 13
CONN 14
CONN 9
CONN 15
CONN 34
CONN 16
CONN 17
CONN 18
CONN 19
CONN 20
CONN 21
CONN 22
CONN 29
CONN 28
CONN 27
CONN 26
CONN 25
CONN 24
CONN 23
CONN 31
CONN 32
CONN 33
CONN 30
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.
OPERATOR MONITOR.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE SHUTDOWN CONTROL.
TURN SIGNAL CIRCUIT.
START AID CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
