572R PIPELAYER ELECTRICAL SYSTEM

SENR1862
October 1998
572R Pipelayer
Electrical System
2HZ1-UP
©
1998 Caterpillar
All Rights Reserved
Printed in U.S.A.
A
3
4
5
6
9
14
15
16
B
C
D
1
2
17
18
19
20
21
22
23
24
25
26
27
29
30
31
32
35
34
7
A
3
4
5
6
9
14
15
16
B
C
D
7
2
17
18
19
20
21
22
23
24
26
27
29
30
31
32
35
34
1
Machine Harness Connector And Component Locations
Component Identifiers (CID¹) and Module Identifier
(MID²) For Power Train ECM (MID No. 081)
CID Component
0070 Parking Brake Switch
0075 Steering System Oil Temperature Sensor
0168 Electrical System
0177 Transmission Oil Temperature Sensor
0190 Engine Speed Sensor
0248 Data Link
0254 Electronic Control Module
0269 Sensor Power Supply
0298 Service Brake Switch
0299 Direction Selector Position Sensor
0368 Autoshift Switch - Power Train
0573 Inching Pedal Position Sensor
0618 Parking Brake Switch
0621 Downshift Switch
0622 Upshift Switch
0623 Reverse Switch
0650 Harness Code
0671 Transmission Output Speed 1 Sensor
0672 Torque Converter Output Speed Sensor
0673 Transmission Output Speed 2 Sensor
0674 Transmission Intermediate Speed 1 Sensor
0675 Transmission Intermediate Speed 2 Sensor
0676 Left Steering Lever Position Sensor
0677 Right Steering Lever Position Sensor
0681 Parking Brake Solenoid
0689 Left Steering Brake Solenoid
0690 Right Steering Brake Solenoid
0691 Reverse Clutch Solenoid Valve 1
0692 Forward Clutch Solenoid Valve 2
0693 Speed 3 Clutch Solenoid Valve 3
0694 Speed 2 Clutch Solenoid Valve 4
0695 Speed 1 Clutch Solenoid Valve 5
0697 Priority Valve Solenoid
0698 Left Steering Clutch Solenoid Valve
0699 Right Steering Clutch Solenoid Valve
0718 Transmission Unidentifiable Failure Mode
0722 Secondary Brake Solenoid Valve
1327 Left Brake Pedal Sensor
1328 Right Brake Pedal Sensor
1329 Left Brake Pedal Switch
1330 Right Brake Pedal Switch
CID Component
0096 Fuel Level Sensor
0110 Engine Coolant Temperature Sensor
0177 Torque Convertor Oil Temperature Sensor
0248 Data Link
0263 8 Volt Sensor Power Supply
0271 Action Alarm
0324 Action Lamp
0600 Hydraulic Oil Temperature Sensor
0601 Brake Air Pressure
0819 Display Data Link
0821 9 Volt Display Power Supply
0830 Brake Oil Temperature
¹The ClD is a diagnostic code that indicates which component is faulty.
¹ The CID is a diagnostic code that indicates which component is faulty.
² The MID is a diagnostic code that indicates which electronic control module
diagnosed the fault.
Component Identifiers (ClD¹) and Module Identifier
(MID²) For Caterpillar Monitoring System (MID No. 030)
² The 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
Alarm - Action A-4 A Sensor - Left Brake Position A-5 22
Alarm - Backup D-12 1 Sensor - Right Brake Position B-5 22
Alternator B-1 2 Sensor - Steer Lever Position (Right, Left) F-7 C
Batteries F-12 3 Sensor - Trans Temp A-6 23
Breaker - Alternator (80 A) E-11 D Solenoid - ECPC Pump A-11 24
Breaker - Aux (20 A) E-11 D Solenoid - First Gear Clutch 5 B-8 21
Caterpillar Monitoring B-4 A Solenoid - Forward Clutch 2 C-8 21
Clutch/Brake Monitor Code B-5 C Solenoid - Left Brake C-8 25
Control - Electronic Clutch Brake B-11 C Solenoid - Left Steer Clutch C-8 25
Converter-24to 12 Volts D-10 4 Solenoid - Park Brake Dump C-8 25
Fuses E-11 0 Solenoid - Reverse Clutch i B-8 21
Gauge Cluster C-4 A Solenoid - Right Brake C-8 25
Horns - Forward (2) E-1 6 Solenoid - Right Steer Clutch C-8 25
Indicator - Auto Downshift B-6 A Solenoid - Second Gear Clutch 4 B-8 21
lndicator Strip C-6 A Solenoid - Service Brake Dump C-8 25
Lamp-Action C-4 A Solenoid - Start Aid F-2 A
Lamps - Pipe D-4 A Solenoid - Third Gear Clutch 3 B-8 21
Lever/Pedal Steer C-10 7 Switch - Auto Downshift B-6 A
Motor - Console Raise/Lower D-7 C Switch - Bi-Directional Mode B-6 A
Motor - Starter C-2 14 Switch - Console Raise/Lower D-7 C
Relay B-12 8 Switch - Coolant F-2 A
Relay-Main F-11 0 Switch - Disconnect F-12 26
Relay-Start F-11 0 Switch - Downshift E-7 C
Resistor - Starter C-2 14 Switch - Engine Oil D-2 27
Resistor (Gauge Cluster) D-4 A Switch - Forward Horn B-5 B
Sender - Coolant Temp D-2 15 Switch - Key Start C-5 A
Sender - Engine Speed E-1 16 Switch - Lamp D-5 A
Sender-Fuel level D-12 17 Switch - Left Brake Pedal A-5 C
Sender-Hydraulic Oil Temp A-8 18 Switch - Operator Monitor B-5 A
Sender- Powertrain Oil Temperature A-11 19 Switch - Parking Brake E-7 C
Sender-Trans Input Speed A-11 20 Switch - Power Train Filter A-8 27
Sender - Trans Intermediate Speed 1 B-8 21 Switch - Reverse D-7 C
Sender - Trans Intermediate Speed 2 B-8 21 Switch - Right Brake Pedal B-5 C
Sender - Trans Output speed 1 B-8 21 Switch - Start Aid C-6 A
Sender - Trans Output Speed 2 A-8 21 Switch - Upshift E-7 C
Sensor - Steer Lever Position (Right, Left) A-8 9 Thermostat B-3 5
Sensor - Direction F-7 C
Machine locations are repeated for components located close together
A = Located In Dash
B = Located In Right Console
C = Located In Left Console
D = Located In Fuse Panel
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 D-12 31
CONN 2 F-12 26
CONN 3 C-11 36
CONN 4 A-10 30
CONN 5 B-10 30
CONN 6 B-9 21
CONN 7 B-9 21
CONN 8 A-5 A
CONN 9 B-5 A
CONN 10 B-5 A
CONN 11 Harness Code B-5 A
CONN 12 Monitor Service C-5 A
CONN 13 Data Link C-5 A
CONN 14 A-3 A
CONN 15 D-3 A
CONN 16 D-3 A
CONN 17 F-3 A
CONN 18 D-2 34
CONN 19 E-2 35
CONN 20 E-2 34
CONN 21 E-1 A
CONN 22 Diagnostic F-9 26
CONN 23 C-10 7
CONN 24 A-8 32
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.
Failure Mode Identifiers (FMI)¹
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.
Sales Model Machine Code
572R 30
Machine Codes
Related Electrical Service Manuals
Form Number
Alternator 132-2156 SENR4547
Caterpillar Monitoring System SENR6717
Starting Motor 6V-5227:
Consist:
6V-5537
106-8552
6V-5538
SENR3581
SENR3536
SENR4975
Power Train Control SENR8367
Title
Mode Of Operation Mode Number
Normal 0
Harness Code 1
Numeric Readout 2
Service 3
Tattletale (Log) 4
Steering Brake Calibration 5
Transmission Calibration 6
Component Data Display 7
Charging System Display 8
Monitoring System Service Modes
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-6332 Solenoid - Start Aid 6
3E-7842 Resistor - Starter/Diagnostic Conn 150 ± 7.5
4W-9972 Sender - Hydraulic Oil Temperature
54°C (1 30°F) - 560 to 716
110°C (230°F)- 72 to 82
7N-8532 Sender - Coolant Temperature
54°C (1 30°F) -560 to 716
110°C (230°F) - 72 to 82
116-6203 Resistor - Gauge 20 ± 1
121 -4030
Solenoids:
Left Steer Brake
Left Steer Clutch
Right Steer Brake
Right Steer Clutch
7.75 ± 1.0
133-2250
Solenoids:
Park Brake Dump
Service Brake Dump
41.9
¹ At room temperature unless otherwise noted.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
9X-7781 Power Train Filter Pressure
210 ± 70 kPa
(30±10 psi)
Normally Open
3E-2026 Engine Oil Pressure
60 kPa MAX
(8.7 psi MAX)
38 ± 20 kPa
(5.5 ± 2.9 psi)
Normally Open
3E-6425 Coolant Temperature (Start Aid)
38 ± 3°C
(100.4° ± 5.4°F)
27 °C MIN
(80.6°F MIN)
Normally Closed
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits
101 RD Bat (+) 513 OR A/C Compressor/Refrigerant Pressure SW
102 RD Hd Lmp 515 GY Blower Motor (Hi)
105 RD Key Start SW 516 ON Blower Motor (Medium)
108 BU Aux Ckt 517 BU Blower Motor (Low)
109 OR Alt Output (+) Term. 521 YL A/C SW To Refrigerant SW
112 PU Main Power Rly Output 522 WH A/C Clutch To Thermostate SW
113 OR Opr Mon Panel B+ Switched 592 BU DC/DC Converter Power Output
114 RD Warning Horn (Forward) A51 3 PK DC/DC Converter Memory Output
116 BR AuxCkt
Lighting Circuits
124 ON A/C 600 BR Dash Lamp Basic
129 RD Aux Ckt 608 GN Flood Lamp — Rear
140 BU Aux Ckt 609 YL Flood Lamp — Side
158 BR Aux Ckt 610 OR Head Lamp Basic
176 YL Aux Ckt 663 GY Gauge Lamps
197 GN Aux Ckt
Control Circuits
198 RD AuxCkt 709 OR Sensor Power Supply
199 OR AuxCkt 751 GN XMSN Shift Sol No. 1 Or 3
Ground Circuits
752 YL XMSN Shift Sol No. 2
200 BK Main Chassis 754 BU XMSN Shift Sol No. 3 Or 1
201 BK Operator Monitor Return 755 OR XMSN Shift Sol No. 4 Or 5
202 BK XMSN Ctrl E707 GN Display +V
203 BK Chassis Diagnostic E708 PK Display Clock
207 BK Starter Diagnostic E718 PK Droop
270 BK CMS ldent Code 0 E735 PU Tack/Serv Mtr/Odometer Select
271 BK CMS ldent Code 1 F780 PK Parking Brake SW
272 BK CMS ldent Code 2 F781 BR Downshift SW (N.O.)
273 BK CMS Ident Code 3 F782 OR Reverse SW (N.O.)
274 BK CMS Ident Code 4 F783 GN Upshift SW (N.C.)
275 BK CMS dent Code 5 F784 YL Downshift SW (N.C.)
276 BK XMSN Ctrl Ident Code 0 F785 WH Upshift SW (N.O.)
277 BK XMSN Ctrl Ident Code 1 F786 GY Reverse SW (N.C.)
278 BK XMSN Ctrl Ident Code 2 F788 PU Left Steer Clutch
279 BK XMSN Ctrl Ident Code 3 F789 YL Right Steer Clutch
280 BK XMSN Ctrl ldent Code 4 F790 BR Service Brake Pedal
290 BK CMS Service F791 BU Right Brake Solenoid
291 BK CMS Clear F792 WH Left Brake Solenoid
Basic Machine Circuits
G730 PK Park Brake Sol
301 BU Starter No. 1 Sol G731 GY Secondary Service Brake Sol
302 OR Starter No. 1 Resistor To Diagnostic H722 GN XMSN Cont Left Brake Pedal Pos Sens
304 WH Starter Relay No. 1 Output 828 WH Hydrst Left Ster Pedal Sensor
306 GN
Starter Relay Coil To Neut Start SW Or Key
Start SW
830 OR Hydrst Right Ster Pedal Sensor
307 OR Key SW To Neut Start SW 851 WH Hydrst Speed And Direction Sensor
308 YL Main Power Relay Coil 892 BR Mon Start Mod Right (-) Port/CAT Data Link (-)
310 PU Start Aid SW To Start Aid Sol 893 GN Mon Start Mod Right (+) Port/CAT Data Link (+)
311 WH Start Aid Sol To Temp SW F842 BU Post Heat
321 BR Bckp Alarm Lamp F846 PU LED Driver 1
322 GY Warning Horn (Forward) F847 YL ECB SW IP1
334 BU Start Aid Sol #2 F848 OR ECB SW IP2
337 WH Prelube Pushbutton SW To Prelube Timer F849 WH ECB SW IP3
Monitoring Circuits
F850 PK ECB SW lP4
403 GN Alternator (R) Term. G848 GN LED Driver 2
405 GY Opr Mon Oil Press. (Low Setting) 900 PU XMSN Shift Sol No. 4
410 WH Opr Mon Action Alarm 973 BR CST Autoshift- Auto/Manual SW 2
411 PK Opr Mon Master 975 WH CST Autoshift- Sol Return
419 YL Opr Mon Parking Brake 977 YL CST Autoshitt- Auto/Manual SW 1
426 BR Opr Mon Power Train Oil Filter E900 WH Trans Output SPD +
441 OR Eng Coolant Temp Gauge E901 GN Trans Output SPD
442 GY Hyd System Temp Gauge E902 PU Trans Intermediate SPD +
443 YL Power Train Temp Gauge E903 YL Trans Intermediate SPD
447 PK Fuel Level Gauge E904 BR Trans Intermediate SPD Q +
450 YL Tach Sender (+) E905 BU Trans Intermediate SPD Q
C413 YL Display Data E906 OR Trans Output SPD Q +
C414 BU Display Load E907 GY Trans Output SPD Q
E908 BR Trans Input SPD +
E909 WH Trans Input SPD -
G939 PK Switch Return
K977 PK Trans Oil Temp Sensor
K978 BU Pump Sol
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.
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
2
1
11
10
2
7
5
12
9
4
1
3
337-WH
G939-PK
419-YL
F780-PK
306-GN
NO
NC
COM
YL
F786-GY
REVERSE
SW
123-6377
BK
RD
F782-OR
SIGNAL
+ BATTERY
GROUND
DIRECTION
106-4437
DOWNSHIFT SW
132-7419
UPSHIFT SW
132-7450
G939-PK
F781-BR
F784-YL
G939-PK
F785-WH
F783-GN
851-WH
G939-PK
140-BU-14
200-BK
2
5
1
3
4
6
176-YL
CONSOLE RAISE/LOWER SW
110-7880
J
YL
RD
MOTOR
CONSOLE
RAISE/LOWER
149-4889
J
200-BK-10
200-BK-14
311-WH
310-PU
302-OR
207-BK
306-GN
105-RD
308-YL
112-PU
109-RD
304-WH
101-RD
203-BK
101-RD
304-WH
DIAGNOSTIC CONN.
176-YL
102-RD-14
108-BU-16
113-OR
114-RD
116-BR-14
101-RD-4
124-GN-14
129-RD
158-BR-14
109-RD-4
304-WH-8
304-WH-8
109-RD-4
308-YL
306-GN
311-WH
310-PU
302-OR
129-RD
207-BK
124-GN-14
101-RD-4
116-BR-14
114-RD
140-BU-14
113-OR
108-BU-16
102-RD-14
176-YL
9
7
6
4
3
1
12
10
8
5
2
11
975-WH
975-WH
450-YL
F790-BR
321-BR
E908-BR
E909-WH
709-OR
K977-PK
K978-BU
893-GN
892-BR
337-WH
G939-PK
G939-PK
973-BR
977-YL
592-BU
A513-PK
521-YL-14
116-BR-14
129-RD
113-OR
114-RD
124-GN-14
101-RD-4
304-WH-8
109-RD-4
102-RD-14
108-BU-16
308-YL
105-RD
311-WH
207-BK
302-OR
310-PU
306-GN
337-WH
200-BK
176-YL
851-WH
F786-GY
F785-WH
F784-YL
F783-GN
F782-OR
F781-BR
F780-PK
G939-PK
G939-PK
G939-PK
G939-PK
140-BU-14
J
J
140-BU-14
J
102-RD-14
108-BU-16
200-BK
200-BK
J
200-BK-14
521-YL-14
A513-PK
592-BU
AUX CKT
PLUG
140-BU-14
200-BK-14
102-RD-14
108-BU-16
306-GN
306-GN 306-GN
200-BK
202-BK-14
202-BK-14
200-BK
200-BK
105-RD
140-BU-14
140-BU-14
140-BU-14140-BU-10
108-BU-16
102-RD-14
6
8
105-RD
308-YL
102-RD-14
308-YL
105-RD
105-RD
308-YL
112-PU
PARKING BRAKE
SW 118-0639
109-RD
108-BU-16
J
1
2
2
1
1
2
2
1
2
1
1
2
2
1
1
2
1
2
1
2
2
1
1
2
2
1
A
A
A
A
F789-YL
F791-BU
F788-PU
F792-WH
975-WH
975-WH
975-WH
975-WH
RIGHT
STEER
CLUTCH
121-4030
RIGHT
BRAKE
121-4030
LEFT
STEER
CLUTCH
121-4030
LEFT
BRAKE
121-4030
F788-PU
F792-WH
F791-BU
F789-YL
975-WH
975-WH
B
S
K
J
N
H
L
P
R
C
D
E
M
A
F
G
T
PA
975-WH
754-BU
900-PU
755-OR
752-YL
751-GN
WH-16
P
755-OR
900-PU
751-GN
752-YL
975-WH
975-WH
975-WH
SECOND GEAR
CLUTCH 4
159-0931
FIRST GEAR
CLUTCH 5
159-0931
REVERSE
CLUTCH 1
159-0931
FORWARD
CLUTCH 2
159-0931
THIRD GEAR
CLUTCH 3
159-0931
975-WH
754-BU
P
P
P
P
975-WH
975-WH
975-WH-14
BK
WH
P
E905-BU
E904-BR
E907-GY
E906-OR
E902-PU
LL
LL
LL
LL
WH
BK
BK
WH
E907-GY
E906-OR
E901-GN
E900-WH
E905-BU
E904-BR
E903-YL
E902-PU
TRANS
OUTPUT
SPEED 2
3E-8848
TRANS
OUTPUT
SPEED 1
3E-8848
TRANS
INTERMEDIATE
SPEED 2
3E-8848
TRANS
INTERMEDIATE
SPEED 1
3E-8848
WH
BK
NOTE B: BOTH PAIRS
NOTE B: BOTH PAIRS
E903-YL
E900-WH
E901-GN
LL
E906-OR
E907-GY
E900-WH
E901-GN
E904-BR
E905-BU
E902-PU
E903-YL
975-WH-14
A-3/F-3 ATCH00138-8148TT
200-BK-14
200-BK-14
200-BK-14
200-BK-14
609-YL-14
200-BK-14
609-YL-14
609-YL-14
609-YL-14
609-YL-14
200-BK-14
609-YL-14
TT
FLOOD LAMP
112-9378
1
2
TT
A
2
1
200-BK-14
609-YL-14
609-YL-14
200-BK-14
TT
1
2
A
TT
2
200-BK
A-9LL
892-BR
201-BK
403-GN
443-YL
426-BR
405-GY
892-BR
442-GY
447-PK
441-OR
893-GN
113-OR
310-PU
308-YL
522-WH-14
105-RD
307-OR
521-YL-14
124-GN-14
102-RD-14
116-BR-14
610-OR-14
608-GN-14
592-BU
A513-PK
108-BU-16
200-BK-14
201-BK
35
27
24
17
14
40
39
32
31
21
12
11
10
7
1
33
E
E
E
E
LIGHT PIPE
LAMPS 123-9294
30
EE
SS
A
A
29
B-1JJ
28
23
G731-GY
198-RD-16
RIGHT BRAKE
POSITION
SENSOR
9X-5592
F790-BR
140-BU-14
G939-PK
COM
NC
NO
RIGHT BRAKE
PEDAL SW
132-7077
YL
BK
RD
SIGNAL
+ BATTERY
RETURN
A
B
C
6
3
5
4
2
973-BR
977-YL
200-BK
977-YL
973-BR
513-OR-14
22
6
5
4
3
18
4
2
1
25
19
13
8
NOTE B
200-BK
1
2
12
11
10
9
3
RD-00
8
AA
7
6
5
4
3
38
754-BU
E901-GN
E900-WH
E902-PU
E903-YL
E905-BU
E904-BR
E907-GY
E906-OR
752-YL
751-GN
755-OR
900-PU
F792-WH
F791-BU
F788-PU
F789-YL
975-WH-14
975-WH-14
450-YL
F790-BR
321-BR
E908-BR
E909-WH
709-ORF846-PU
K977-PK
F847-YL
K978-BU
G731-GY
337-WH
334-BU
F790-BR
450-YL
754-BU
E908-BR
E909-WH
E902-PU
E903-YL
E904-BR
E905-BU
E900-WH
E901-GN
E906-OR
E907-GY
321-BR
709-OR
K977-PK
F847-YL
K978-BU
176-YL
306-GN
140-BU-14
140-BU-14
202-BK-14
G939-PK
F788-PU
202-BK-14
752-YL
893-GN
892-BR
977-YL
751-GN
F789-YL
900-PU
755-OR
975-WH-14
F842-BU
F791-BU
F792-WH
893-GN
892-BR
337-WH
306-GN
G730-PK
G939-PK
G939-PK
202-BK-14
202-BK-14
140-BU-14
140-BU-14
176-YL
200-BK
F850-PK
F849-WH
F848-OR
F846-PU
973-BR
977-YL
F842-BU
334-BU
973-BR
26
F849-WH
F850-PK
F848-OR
200-BK
443-YL
G939-PK
592-BU
102-RD-14
11
2
1
3
4
6
5
8
7
10
9
12
13
15
14
16
17
38
27
33
19
20
31
32
34
35
39
36
18
24
23
22
26
30
28
21
40
29
37
25
G939-PK
CONTROL
109-0563
NOTE B
HARNESS CODE 0
HARNESS CODE 1
HARNESS CODE 2
HARNESS CODE 3
HARNESS CODE 4
276-BK
277-BK
278-BK
279-BK
280-BK
25
26
32
36
14
JJ
J
G730-PKPARK BRAKE DUMP
975-WH-14
2F-1R INDICATOR F846-PU
F849-WH
F847-YL
F850-PK
F848-OR
BI-DIRECTIONAL (N/C)
SW IP 1
BI-DIRECTIONAL (N/O)
975-WH-14
AIH POST HEAT SW
975-WH-14
975-WH-14
F842-BU
H722-GN
21
39
37
16
33
32
28
E
27
26
3
1
9
C
B
A
6
40
22
34
38
31
37
27
17
443-YL
POWERTRAIN
OIL SENDER
4W-9972
°T
E909-WH
E908-BR
443-YL
K977-PK
709-OR
1
975-WH
K978-BU
G939-PK
19
20
13
25
14
20
30
2
36
12
1
7
35
24
23
29
2
7
15
8
12
4
5
11
18
23
35
29
G939-PK
38
20
24
7
17
22
11
5
2
4
19
6
1
18
3
30
ECPC PUMP SOLENOID K978-BU
10 K977-PK
709-OR
321-BR
E907-GY
E906-OR
E901-GN
E900-WH
E905-BU
E904-BR
E903-YL
E902-PU
E909-WH
E908-BR
3
9
4
E
754-BU
F791-BU
450-YL
F790-BR
31
851-WH
RIGHT BRAKE PEDAL
ENGINE SPEED SENSOR
REVERSE SW (N/O)
REVERSE SW (N/C)
F782-OR
F786-GY
830-OR
LEFT BRAKE SOLENOID
RIGHT STEER SENSOR
LEFT STEER SENSOR
DOWNSHIFT SW (N/O)
+ V SENSOR
DOWNSHIFT SW (N/C)
UPSHIFT SW (N/O)
DIRECTION SENSOR
BACK UP ALARM
UPSHIFT SW (N/C)
RIGHT BRAKE SOLENOID
F792-WH
F780-PK
403-GN
405-GY
441-OR
828-WH
F784-YL
201-BK
202-BK-14
522-WH-14
F781-BR
TRANS OUT SP 2 -
TRANS OUT SP 2 +
TRANS OUT SP 1 -
TRANS INT SP 2 -
TRANS INT SP 2 +
TRANS INT SP 1 +
TRANS OIL TEMP SEN
THIRD GEAR CLUTCH
TRANS INT SP 1 -
TRANS INPUT SP +
TRANS OUT SP 1 +
TRANS INPUT SP -
F783-GN
34
2
F785-WH
9
1
12
13
975-WH-14
21
8
28
39
755-OR
33
900-PU
F789-YL
GROUND
+ BATTERY
S
751-GN
977-YL
DATA LINK -
DATA LINK +
892-BR
893-GN
FORWARD CLUTCH SOL
S
SOLENOID RETURN
RIGHT STEER CLUTCH
LEFT STEER CLUTCH
PARK BRAKE SW (N/C)
16
GROUND
NOTE B
NOTE B
+ BATTERY
15
SWITCH RETURN
SWITCH RETURN
SOLENOID RETURN
752-YL
202-BK-14
F788-PU
G939-PK
G939-PK
973-BR
AUTO DOWNSHIFT SW
SECOND GEAR CLUTCH
FIRST GEAR CLUTCH
REVERSE CLUTCH SOL
40
10
140-BU-14
140-BU-14
SERVICE BRAKE DUMP
G939-PK
J
140-BU
ECB / ECPC
PIPELAYER FTC
169-0459
G731-GY
PARK BRAKE SW (N/O)419-YL
2F-2R INDICATOR
1F-2R INDICATOR
J1
(CONN D)
J2
(CONN B)
J
A
A
975-WH-14
140-BU-14
G939-PK
140-BU-14
975-WH-14
140-BU-14
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
G939-PK
140-BU-14
140-BU-14
140-BU-14
140-BU-14
975-WH-14
975-WH-14
LH BRAKE PEDAL
G848-GN
G848-GN
BK
BK
BK
G848-GN
BK
AUTO INDICATOR
AIR INLET HEATER 334-BU
975-WH-14
G730-PK
G731-GY
140-BU
140-BU
158-BR-14
1
2
1
2
KK
04
1
A-5
A
164-6019
B-9
H
H
H
H
H
H
200-BK-10
2
600-BR
304-WH-8
124-GN-14
140-BU-10
200-BK-10
114-RD
129-RD
113-OR
112-PU
304-WH
101-RD
109-RD
308-YL
105-RD
306-GN
176-YL
116-BR-14
108-BU-16
158-BR-14
A
4
17
18
10
14
2
9
11
101-RD-4
109-RD-4
102-RD-14
199-OR-16
198-RD-16
197-GN-16
197-GN-16
198-RD-16
108-BU-16
DUMP VALVE
AUX 1
10A
112-PU-14
10A
8
15
16
5
13
6
12
1
7
23
19
20
24
22
3
21
25
RELAY PANEL
124-GN-14
109-RD-4
112-PU-14
112-PU-14
308-YL
306-GN
308-YL
200-BK 200-BK-10
OPERATOR MONITOR
10A
WIPERS
FLOODLAMPS
15A
10A
10A
CONSOLE
POWERTRAIN CTRL
A/C CONDENSER
20A
10A
10A
FORWARD HORN
10A
CIGAR LIGHTER
10A
LAMPS
10A
20A
306-GN
200-BK
START
RELAY
125-1302
BK
BK
MAIN RELAY
101-7740
BK-16
BK-16
C
C
C
200-BK-10
124-GN-14
101-RD-4
109-RD-4
101-RD
101-RD-4
109-RD-4
109-RD-4
109-RD-4
101-RD
80A
112-PU-14
112-PU-14
101-RD-14
101-RD-14
101-RD-14
101-RD-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
112-PU-14
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
112-PU-14
102-RD-14
197-GN-16
AUX
BREAKER
3T-8728
308-YL
200-BK-10
112-PU-14
308-YL
105-RD
102-RD-14
RELAY PANEL
BLOWER BREAKER
3T-8728
109-RD-4
101-RD-4
304-WH-8
ALTERNATOR
BREAKER
9S-4693
NOTE:
20A BREAKER; 3T-8728
80A BREAKER; 9S-4693
10A FUSE; 3K-8782
15A FUSE; 8M-8948
20A FUSE; 8M-0456
FUSE HOLDER; 4K-5122
304-WH
109-RD
114-RD
129-RD
113-OR
116-BR-14
176-YL
199-OR-16
158-BR-14
L
FLOOD
LAMP
106-8964
200-BK-14
608-GN-14
FLOOD
LAMP
107-6689
L
200-BK-14
FLOOD
LAMPS
107-6689
U
FLOOD
LAMP
106-8964
608-GN-14
NN
FLOOD
LAMP
106-8964
608-GN-14
FLOOD
LAMP
107-6689
NN
U
200-BK-14
A513-PK
200-BK-14
NN
FLOOD
LAMP
106-8964
608-GN-14
610-OR-14
310-PU
113-OR
521-YL-14
200-BK-14
NN
NN
NN
200-BK-14
608-GN-14
608-GN-14
200-BK-14
L
1
L
608-GN-14
1
2
200-BK-14
2
1
200-BK-14
608-GN-14
1
2
200-BK
592-BU
2
200-BK
200-BK
200-BK
600-BR
E
201-BK
201-BK
1
200-BK-6
200-BK-14
608-GN-14
W
W
200-BK-14
608-GN-14
200-BK-14
W
FLOOD
LAMP
107-6689
200-BK-14
200-BK-14
608-GN-14
T
NN
U
L
W
W
200-BK-14608-GN-14
FLOOD
LAMP
107-6689
W
200-BK-14
608-GN-14
200-BK-14
W
102-RD-14
108-BU-16
W
608-GN-14
200-BK-14
1
2
2
1
W
W
2
BK-00
1
K978-BU
608-GN-14
200-BK-14
1
2
200-BK-14
2
00
6
A
B
1
C
200-BK
200-BK
608-GN-14
MONITOR SERVICE
CONNECTOR
200-BK-14
L
RESISTOR
116-6203
ACTION LAMP
LAMP 115-1748
HOUSING 123-0304
201-BK
201-BK
200-BK
600-BR
AUTO DOWNSHIFT
INDICATOR
133-8979
AUTO LAMP
+8V POWER
4
WH
WH
3
B-2013T-2980
MM
2
1
G848-GN
709-OR
E
MM
BK
BK
MM
BK
892-BR
893-GN
A
B
OR
BK
WH
+ V SENSOR
GROUND
SIGNAL
G939-PK
709-OR
C
K977-PK
116-BR-14
NO
308-YL
NC
C
L
200-BK-14
2
L58
608-GN-14
201-BK
L28
102-RD-14
105-RD
337-WH
124-GN-14
592-BU
E909-WH
E908-BR
TRANS
INPUT
SPEED
3E-8848
TRANS
TEMP
SENSOR
118-7226
1
201-BK
977-YL
BK
BK
BK
A
B
C
608-GN-14
200-BK-14
NN
L25
L26
L28
L58
403-GN
443-YL
426-BR
405-GY
892-BR
442-GY
447-PK
441-OR
893-GN
113-OR
310-PU
308-YL
522-WH-14
105-RD
307-OR
521-YL-14
2
F846-PU
F847-YL
709-OR
973-BR
F849-WH
F848-OR
F849-WH
F848-OR
L29
2
L29
L29
200-BK
200-BK-14
L29
201-BK
201-BK
977-YL
F849-WH
F848-OR
F847-YL
973-BR
F846-PU
709-OR
977-YL
G848-GN G848-GN
G848-GN
G848-GN
G848-GN
A
A
G731-GY
975-WH-14
975-WH 975-WH
975-WH
975-WH
975-WH
198-RD-16
198-RD-16
201-BK
102-RD-14
B
2
L40
ECPC
PUMP
136-1679
1
L56
BK-00
RD-00
522-WH-14
513-OR-14
G731-GY
G730-PKBK
BK
BK
BK
LEVER/PEDAL
STEER
165-2301
11
1
2
B
1
2
201-BK
10
3
A
B
3
A
4
5
2
2
6
VV
1
4
RD-00
VV
3
201-BK
F848-OR
AUTO DOWNSHIFT
133-9405
NN
2
608-GN-14
5
6
201-BK
201-BK
828-WH
830-OR
E
140-BU
140-BU
BI-DIRECTIONAL
MODE SW
133-9405
D
113-OR
NO
200-BK-14
610-OR-14
3
522-WH-14
200-BK-14
521-YL-14
522-WH-14
517-BU-14
516-GN-14
START AID
SW 133-9405
124-GN-14
E
F849-WH
4
C
G848-GN
522-WH-14
B
A
A
B
200-BK
3
C
8
G939-PK
140-BU-10
STRIP 110-4638
112-PU
OR
G939-PK
WH
BK
OR
SIGNAL
+ BATTERY
GROUND
443-YL
BK
WH
GROUND
+ BATTERY
SIGNAL
830-OR
7
828-WH
J
J
513-OR-14
LEFT STEER LEVER
POSITION
147-1680
140-BU
140-BU
G939-PK
RIGHT STEER LEVER
POSITION
147-1680
G939-PK
6
C
B
A
G939-PK
140-BU-16
F790-BR
A-500164-6018VV
FTC
STEER
165-1698
LEVER/PEDAL
STEER
165-1693
140-BU
L46
L46
L47
L47
140-BU
L47
L46
521-YL-14
200-BK-14
311-WH
322-GY
L47
610-OR-14
310-PU
L46
L61
L61
L55
L53
L53
L52
L52
L31
BA
522-WH-14
L25
L8
L59
893-GN
L59
L31
L19
L22
L30
L30
L30
L30
L30
L1
L22
L55
L22
L22
441-OR
L52
L52
L55
L22
L22
L22
L43
L53
L53
L54
L54
L54
L54
L48
L48
L44
L39
975-WH-14
L43
L44
L48
L38
L50
L50
L50
L51
L51
L51
L50
L49
G939-PK
L37
L37
L56
L51
L50
L56
G939-PK
L48
L48
522-WH-14
C
L50
B
L48
L50
L48
L50
6
L51
L51
L51
L47
L47
5
L45
L45
L45
L45
L46
L46
4
GN
5
GN
GN
L37
L38
L38
L39
L39
L40
L40
L41
L41
L41
L42
L42
515-GY-14
L42
L41
KK
L40
L39
L38
L37
GN
L35
KK
E
A
L35
L42
L41
1
L40
L39
L38
L37
L35
L35
PARK
BRAKE
DUMP
133-2250
L37
L38
2
2
L39
9
3
L35
SERV
BRAKE
DUMP
133-2250
3
L37
L38
L40
L39
L41
L42
L42
L41
200-BK-14
129-RD
L25
L12
L3
L3
L8
L8
L8
L11
L11
L9
L9
2
L9
L27
OPERATOR
MONITOR SW
133-9405
12
E
NC
C
L25
PU
WH
1
L26
L27
A
1
L28
L29
8
200-BK-14
L58
WIRE AS.
L17
8V-0622 00
L16
L10
L13
L13
F-12BB
L13
L17
L17
L17
L17
L27
124-GN-14
L29
592-BU
200-BK-14
L12
A
L12
L12
L16
L16
L16
9
L18
L18
L18
L18
L10
L10
L9
L9
L11
L11
L11
L14
L14
L14
7
5
L8
L3
L3
304-WH-8
109-RD-4
200-BK-14
4
311-WH
L7
L7
L3
442-GY
L1
L8
L7
2
521-YL-14
L8
1
L7
L1
G731-GY
F790-BR
198-RD-16
G939-PK
1
140-BU
1
A-5
975-WH-14
975-WH
00164-6020UU
116-BR-14
1
E
G939-PK
975-WH
140-BU
975-WH
975-WH
610-OR-14
609-YL-14
2
L49L49
G939-PK
G939-PK
830-OR
828-WH
RIGHT STEER LEVER
POSITION
147-1680
LEFT STEER LEVER
POSITION
147-1680
J
J
828-WH
830-OR
SIGNAL
+ BATTERY
GROUND
WH
BK
GROUND
+ BATTERY
SIGNAL
OR
BK
WH
G939-PK
OR
G939-PK
L7
BK
C
126-8874
B
A
A
B
C
L55
J
828-WH
830-OR
140-BU
140-BU
140-BU
G939-PK
C
G731-GY
975-WH
NC
109-RD-4
KK
200-BK-10
975-WH
BK
200-BK
200-BK
108-BU-16
102-RD-14
592-BU
310-PU
302-OR
207-BK
G939-PK
101-RD-4
521-YL-14
108-BU-16
2
4
521-YL-14
975-WH
200-BK-14
200-BK-14
200-BK-14
200-BK-14
450-YL
200-BK-10
200-BK-14
G730-PK
H722-GN
1
WH
200-BK-14
D
322-GY-14
322-GY-14
608-GN-14
G939-PK
2
H722-GN
G730-PK
114-RD
322-GY
114-RD
322-GY
36
16
1
15
321-BR
321-BR
975-WH
975-WH
200-BK-14
447-PK
201-BK
199-OR-14
140-BU-14
A
124-GN-14
337-WH
105-RD
102-RD-14
308-YL
116-BR-14
893-GN
608-GN-14
442-GY
201-BK
426-BR
197-GN-16
447-PK
311-WH
200-BK-14
610-OR-14
129-RD
608-GN-14
BK-16
441-OR
A
A
207-BK
NOTE
201-BK
310-PU
200-BK-14
BK
140-BU
200-BK-14
A513-PK
108-BU-16
BK
102-RD-14
200-BK-14
A513-PK
D
592-BU
442-GY
114-RD
322-GY
1
129-RD
S
140-BU
517-BU-14
516-GN-14
515-GY-14
124-GN-14
521-YL-14
E
NN
608-GN-14
FLOOD
LAMP
106-8964
NN
200-BK-14
200-BK-14
U
NN
K
FLOOD
LAMP
107-6689
608-GN-14
140-BU
FLOOD
LAMP
106-8964
A513-PK
2
NN
975-WH
321-BR
114-RD
450-YL
608-GN-14
FLOOD
LAMP
106-8964
U
NOTE: HARNESS "U" FOR TANK MOUNTED FLOODS
HARNESS "L" FOR 1 TANK MOUNTED (REAR), 1 SWEEPS MOUNTED (FRONT)
HARNESS "W" FOR 1 TANK MOUNTED (REAR), 1 ROPS MOUNTED (FRONT)
HARNESS "NN" FOR 1 TANK MOUNTED (REAR), 1 ROPS MOUNTED (REAR),
AND 1 ROPS MOUNTED (FRONT)
WITH HARNESS "NN", FUSE FOR 116-BR TO BE CHANGED TO
8M-0456 (20A) FUSE.
FLOOD
LAMPS
107-6689
A
G731-GY
BK
WH
D
308-YL
830-OR
426-BR
2
830-OR
B
B
828-WH
G939-PK
K978-BU
975-WH
200-BK-14
L
FLOOD
LAMP
107-6689
608-GN-14
200-BK-14
FLOOD
LAMP
106-8964
116-BR-14
116-BR-14
B
201-BK
405-GY
L
G730-PK
5
6
7
8
4
3
2
1
200-BK-14
ATCH
200-BK-14
200-BK-14
129-RD
A
20A
4
5
3
G730-PK
828-WH
SEC PRK BRK SW
8
A
B
C
201-BK2
6
L1
198-RD-16
NO
GN-16
G731-GY
E718-BK
140-BU-14
C
NC
NOTE J: WITH HARNESS "NN", REPLACE FUSE WITH
8M-0456 (20A) FUSE
NO
NO
3
4
310-PU
105-RD
307-OR
308-YL
521-YL-14
522-WH-14
124-GN-14
200-BK-14
E718-PK
610-OR-14
200-BK-14
01
00
00
1
200-BK-14
00109-6410
01
140-BU 4
01
03
P
02
F849-WH
3
113-OR
01
2
113-7133
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
TRANSMISSION SHIFTER IN NEUTRAL, AND PARK BRAKE ON
CABLE AS.
F849-WH
D-4
F-1
05
NOTE B: THE FOLLOWING WIRE PAIRS MUST BE TWISTED
AT LEAST 1 TURN / 25 MILLIMETERS
(892-BR, 893-GN); (E902-PU,E903-YL);
(E904-BR, E905-BU); (E900-WH, E901-GN);
(E906-OR, E907-GY); (E908-BR, E909-WH);
(450-YL, G939-PK).
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
F848-OR
7P-6682
113-7134
6T-9661
8E-3413
E-12
U
A-8113-7904
CHG
D
134-3853
109-6376
F-10
B-2EE
202-BK-14
T
S
F-12
IDENT PART NO. LOC
HARNESS AS.
136-2108A D-3
F-2B
C
E
H E-2109-6379
J C-11
F849-WH
00
F848-OR
198-RD
G730-PK
B
DD
CC F-12
140-BU
F-12AA
12V BATTERY
9X-9721 STD
9X-9731 ATCH
A
BK
2
1 321-BR
03
200-BK
BK
610-OR-14
10
A513-PK
FLOOD LAMP
112-9378
BK-16
140-BU
405-GY
THIS DIAGRAM IS FOR THE 572R PIPELAYER (163-1917 CHG 01)
1
NO
L1
JJ
DISCONNECT
SW
7N-0718
200-BK
1
UU
KK
2
L1
JUU
GN-16
120-9890
ENGINE
SPEED
6V-2455
202-BK-14
200-BK-14
201-BK
01
3N-0539
4D-6565
L1
E
ATCH01
4
A-12/E-12
126-8872
L1
LEFT BRAKE
PEDAL SW
132-7077
NO
NC
200-BK-6
200-BK-6
BACKUP
ALARM
123-6449
ATCH
144-7872
DD
201-BK
NC
2
C
199-OR-16
00
199-OR-16
126-8871
G939-PK
521-YL-14
WH
OR
RD
WH/BU
GY
201-BK
201-BK
108-BU-16
BU
YL
E
B-2
L1
L7
G848-GN
COM
L7
199-OR-16
197-GN-16
L8
975-WH-14
200-BK
1
203-BK
DD
L
U
NN
FRAME
GROUND
NN
709-OR
1
11
CC
BB
AA
W
L
158-BR-14
200-BK-14
200-BK
200-BK-6
200-BK-10
198-RD-16
176-YL
116-BR-14
129-RD
113-OR
114-RD
F849-WH
F848-OR
124-GN-14
101-RD-4
304-WH-8
AA
K977-PK
337-WH
109-RD-4
112-PU
109-RD
304-WH
101-RD
L8
310-PU
308-YL
L8
5
E908-BR
200-BK-14
E909-WH
200-BK-14
610-OR-14
322-GY
6
RD-00
307-OR B
4
A
C
L51
113-OR
337-WH
5
L15
F848-OR
337-WH
337-WH
977-YL
F846-PU
F847-YL
709-OR
973-BR
108-BU-16
A513-PK
592-BU
608-GN-14
610-OR-14
116-BR-14
102-RD-14
124-GN-14
521-YL-14
307-OR
105-RD
522-WH-14
308-YL
310-PU
113-OR
893-GN
441-OR
447-PK
442-GY
892-BR
405-GY
426-BR
443-YL
403-GN
E718-PK
G730-PK
K
WH
WH
WH
2
L7
01
L1
L1
L7
J
L7
L19
L19
L19
L3
C-201
00
00
9U-8746
A
419-YL
1
RD-16
203-BK
CONN 2
CONN 1
CONN 3
CONN 3
RD-16
RD-16
201-BK
200-BK
BK-00
RD-00
311-WH
6
A-12/E-12
199-OR-16199-OR-16
EE
A
RD-16
RD-16
RD-16
RD-16
RD-16
203-BK
V
PK
GN
PU
101-RD-14
L8
L3
322-GY-14
L19
C
B
F847-YL
973-BR
F846-PU
709-OR
INDICATOR STRIP
125-3401
V
1F-2R LAMP
2F-2R LAMP
AUTO LAMP
+8V POWER
NEG POS
E
200-BK
4
3
FORWARD
HORN
7T-0969
311-WH
2
A-12/E-12
J
BK-8
975-WH
1
CIGAR
LIGHTER
9W-0335
199-OR-16
T°
A
MODULE
WH
308-YL
105-RD
9G-7641
307-OR
2
BK
709-OR
200-BK-14
201-BK
201-BK
447-PK
T
PK
BK
ENGINE
OIL SW
3E-2026
2
200-BK-14
973-BR
610-OR-14
200-BK-14
709-OR
F847-YL
F846-PU
34
2
310-PU
311-WH
2
200-BK
B
A
975-WH
709-OR
1
F847-YL
F846-PU
T
977-YL
102-RD-14
310-PU
F847-YL
F846-PU
NC
709-OR
403-GN
709-OR
709-OR
140-BU
200-BK
600-BR
600-BR
E
2
608-GN-14
200-BK-6
201-BK
2
201-BK
B2
F846-PU
F847-YL
200-BK-14
L26
BR-20
J
1
2
RD-20
YL-20
WH-20
PK-20
AT
4
H
109-RD-4
ST
ON
OFF
B
S
C
R
E
610-OR-14
200-BK-14
200-BK-14
610-OR-14
B
129-RD
311-WH
201-BK
521-YL-14
D
BK
WH
608-GN-14
200-BK-14
426-BR
G939-PK
K978-BU
975-WH
1
2
3
200-BK-14
G
F
BK
E
D
892-BR
2
709-OR
K977-PK
443-YL
442-GY
E908-BR
A
1
E909-WH
441-OR
B1
BK
1
3
3
2
C
HH
892-BR
HYDRAULIC
OIL SENDER
4W-9972
200-BK
OPERATOR STATION
B
2
BR
BK
RD-00
E
608-GN-14
1
4
102-RD-14
E
E
WH
L15
405-GY
L15
NOTE C
E
109-RD-4
403-GN
START AID
SOLENOID
3E-6332
1
522-WH-14
893-GN
BK
521-YL-14
199-OR-16
COOLANT
SENDER
7N-8532
403-GN
COOLANT SW
3E-6425
200-BK
B
109-RD-4
A
E
E
102-RD-14
LAMP SW
109-7189
116-BR-14
608-GN-14
610-OR-14
200-BK-14
12 11 10 9 8 7
6
5 4
3
2
1
12 11 10 9 8 7
6
5 4
3
2
1
200-BK-14
201-BK
608-GN-14
°T
5
A513-PK
°
T
BK
C
113-OR
12V BATTERY
9X-9721 STD
9X-9731 ATCH
975-WH
F
E
D
C
B
A
F
E
D
C
B
A
321-BR
JJ
199-OR-16
029W-5472
STD
ATCHB-101
BK-4
1Q-2807JJ
600-BR
B 201-BK
200-BK-6
200-BK-14
OPERATOR STATION
OPERATOR STATION
CC
BB
POWER
TRAIN
FILTER SW
NOTE E
9X-7781
200-BK-14
447-PK
L15
609-YL-14
200-BK-10
ATCH
1
BK
NEG
POS
A-12
BK
158-BR-14
200-BK-14
442-GY
201-BK
426-BR
201-BK
426-BR
1
00
2
AS
G731-GY
975-WH
321-BR
322-GY
114-RD
2
1
B
1Q-2444
L66
L66
L66
L66
NOTE B
L66
L11
L9
L65
L65
L65
164-2228
L65
L64
L64
L64
L64
L64
L64
L64
L63
L63
L63
L62
L62
G939-PK
L62
L62
GN-20
V
L62
116-BR-14
L61
L61
L61
L55
L55
L55
L55
L55
L45
L15
L39
L44
600-BR
L43
L55
L8
200-BK-14
L1
JJ
NOTE B
1
L1
A
1
202-BK-14
411-PK
201-BK
ATTACHMENT
WINCH
POWER
202-BK-14
L7
L59
201-BK
L59
NOTE C: THE FOLLOWING ARE COMMUNICATED VIA DATA LINK
(ENGINE SPEED, ACTUAL GEAR,PARK BRAKE ON)
RETURN
L25
+ BATTERY
NOTE J
L19
L19
L31
609-YL-14
200-BK-14
201-BK
L29
158-BR-14
SS
447-PK
108-BU-16
1
A
201-BK
01
E735-PU
270-BK
274-BK
271-BK
272-BK
20
6
16
22
12
33
23
10
28
8
9
19
30
1
14
5
A
DATALINK
SERVICE
CONNECTOR
291-BK
290-BK
291-BK
290-BK
CLEAR SW
SERVICE SW
275-BK
273-BK
272-BK
271-BK
274-BK
270-BK
HARN CODE 5
HARN CODE 4
HARN CODE 3
E735-PU
290-BK
291-BK
13
4
447-PK
200-BK-14
3
CLOCK
GROUND
DATA
LOAD
200-BK-14
WH-16
WH-16
WH-16
WH-16
WH-16
NOTE G
WH-16
WH-16
2
WH-16
WH-16
A
2
1
1
2
A
L8
6
OR
E
136-2087
OPERATOR STATION
1
G731-GY
1
G939-PK
ALTERNATOR
132-2156
ATCH 3E-7577
3
BK-6
B-12/E-12
201-BK
RESISTOR
3E-7842
ENGINE
BLOCK
STARTER
6V-5227
BK-6
SS
A
101-RD-4
304-WH-8
207-BK
302-OR
302-OR
301-BU
426-BR
RD-00
BK-00
G S
MTR BAT
MOTOR
4
5
BK
GN
BK
WH
YL
608-GN-14
A
609-YL-14
200-BK-14
609-YL-14
FORWARD
HORN
7T-0970
SIGNAL
200-BK
E
2
1
F-12
201-BK
RD
31
BK
2
D
00
34
YL
G939-PK
25
FUEL LEVEL SENDER
120-9586
140-BU
203-BK
35
H722-GN
LEFT BRAKE
POSITION
SENSOR
126-3741
447-PK
201-BK
15
608-GN-14
L55
199-OR-16
LOAD
ATCH
37
C
CLOCK
113-OR
201-BK
709-OR
D
B3
40
39
38
BK
37
513-OR-14
36
32
29
27
A
26
201-BK
109-RD-4
273-BK
21
17
275-BK
198-RD
+V DISPLAY
GROUND
JJ
FRAME
GROUND
OPERATOR STATION
DATA
892-BR
E735-PU
HARN CODE 2
DATA LINK -
DATA LINK +
893-GN
892-BR
893-GN
CLUTCH/BRAKE
HARNESS CODE
127-4801
G730-PK
113-OR
201-BK
201-BK
11
142-8587
E
7
E
E
201-BK
410-WH RD-16
BK-16
HARN CODE 1
OPERATOR SW
18
E735-PU
ACTION LAMP
ACTION ALARM
411-PK
410-WH
426-BR
+ BATTERY
COOLANT TEMP
113-OR
443-YL
ALARM
3E-6328
201-BK
E
442-GY
E
K
198-RD
24
441-OR
447-PK
663-GY
201-BK
HARN CODE 0
HYD OIL TEMP
442-GY
FUEL LEVEL
608-GN-14
405-GY
403-GN
ENGINE OIL PR
ALTERNATOR
PWR TRN TEMP
PWR TRN FILTER
E707-GN
201-BK
C413-YL
E708-PK
C414-BU
CLUSTER
100-5895
157-3570
NOTE B
LAMP
7N-5876
C414-BU
403-GN
FORWARD
HORN SW
3T-2357
MM
E708-PK
E707-GN
201-BK
C413-YL
HARN CODE
+V DISPLAY
BU 6
L16
663-GY
1
2
ALT
R
E73599
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 18 GAUGE
GAUGE
ACTION
TO MACHINE STRUCTURE
OPERABLE MACHINE WITH THE KEY START SW AND ENGINE OFF,
KEY START SW
KEY START SW
POWER TRAIN
CATERPILLAR
MONITORING SYSTEM
C
CONN 23
CONN 5
CONN 4
CONN 6
CONN 7
CONN 22
CONN 13
CONN 12
CONN 11
CONN 10
CONN 9
CONN 8
CONN 14
CONN 15
CONN 16
CONN 18
CONN 19
CONN 20
CONN 21
CONN 24
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.
CATERPILLAR MONITORING SYSTEM.
PANEL LAMP CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
POWERTRAIN CONTROL CIRCUIT.