SENR8332-03 Harness And Wire Electrical Schematic Symbols

January 2014
Symbols

Pressure Temperature Level Flow Circuit Breaker

Component Location Symbol Symbol Symbol Symbol Symbol
Schematic Machine Schematic Machine
WIRE DESCRIPTION CHART Component Component
Wire Wire Wire Wire
Location Location Location Location Symbols and Definitions
Number Color Description Number Color Description Action - Alarm D-7 C Hydraulic (Gauge) - Sender A-7 18
Power Distribution Circuits Monitoring Circuits (cont'd) Backup - Alarm F-9 1 Powertrain Oil (Gauge) - Sender A-3 19 Fuse: A component in an electrical circuit that will open the circuit if too much current flows
Alternator A-1 2 Air Conditioner Clutch - Solenoid A-2 16 through it.
101 RD BAT 415 GN OPR MON TEST SW
102 BU HD LMP 424 GY OPR MON POWER TRAIN TEMP 12 Volt - Batteries F-6 3 Diverter Valve - Solenoid E-8 20
Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The
105 BR KEY SW 426 BR OPR MON POWER TRAIN OIL FILTER Alternator (60A) - Breaker E-8 E Prelube Timer - Solenoid D-2 12
circle indicates that the component has screw terminals and a wire can be disconnected from it.
108 BU AUX CKT 441 OR ENG COOLANT TEMP GAGE Blower Motor (20A) - Breaker F-7 E Ripper Pin Puller - Solenoid C-9 20
109 OR ALT OUTPUT (+) TERM. 442 GY HYD SYSTEM TEMP GAGE Breaker - Remote Conden ser (20A) F-7 E Start Aid - Solenoid B-2 21
Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.).
112 PU MAIN POWER RELAY OUTPUT 443 YL POWER TRAIN TEMP GAGE Bus Bar F-2 4 Arc - Suppressor A-2 16 No circle indicates that the wire cannot be disconnected from the component.
113 OR OPR MON PANEL VMIS B+ SWITCHED 449 BU SPDOM SENDER (SIGNAL NO.1) Voltage - Converter F-5 5 A/C Refrigerant Pressure - Switch B-2 16
114 GN WARNING HORN (FORWARD) 499 GY OPR MON IMPLEMENT OIL FILTER Alternator - Filter B-5 B Backup Alarm - Switch D-7 C Ground (Wired): This indicates that the component is connected to a grounded wire. The
116 BR AUX CKT A447 PK PRELUBE OIL PRESS Fuses E-7, E-8 E Blower - Switch D-6 7 grounded wire is fastened to the machine.
121 YL BACKUP ALARM TO LAMP Accessory Circuits Coolant Temp - Gauge A-6 B Coolant Temperature - Switch B-2 22
123 WH AUX CKT 500 BR WIPER - FRONT (PARK) Fuel Level - Gauge A-5 B Disconnect - Switch F-5 14 Ground (Case): This indicates that the component does not have a wire connected to ground.
It is grounded by being fastened to the machine.
124 GN A/C 501 GN WIPER - FRONT (LO) Hydraulic Oil Temp - Gauge B-5 B Diverter Valve - Switch A-7 23
Ground Circuits 502 OR WIPER - FRONT (HI) Powertrain Temp - Gauge B-6 B Engine Coolant Flow (EMS) - Switch B-2 24
Reed Switch: A switch whose contacts are controlled by a magnet. A magnet closes the
200 BK MAIN CHASSIS 503 BR WIPER - REAR (PARK) Horn - For ward E-1 6 Engine Coolant Temperature (EMS) - Switch B-2 22
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.

D8R Track-Type Tractor

201 BK OPR MON PANEL VMIS CMS 504 YL WIPER - REAR (LO) Action - Lamp C-5 B Engine Oil Pressure (EMS) - Switch B-2 25
203 BK CHASSIS DIAGNOSTIC 505 BU WIPER - REAR (HI) Cigar - Lighter B-7 D Flood Lamp - Switch C-5 B Sender: A component that is used with a temperature or pressure gauge. The sender
207 BK STARTER DIAGNOSTIC 510 YL WASHER - PRIMER Service - Meter B-6 B Forward Horn - Switch A-7 D measures the temperature or pressure. Its resistance changes to give an indication to

Electrical System
Basic Machine Circuits 513 OR A/C COMPRESSOR/REFRIGERANT PRESS. SW Operator - Monitor C-6 B Front Wiper - Switch B-7 A
T
the gauge of the temperature or pressure.
301 BU STARTER NO.1 SOL 515 GY BLOWER MOTOR (HI) Blower - Motor D-4, C-4 7 Fuel Pressure (EMS) - Switch B-2 26
302 OR STARTER NO.1 RESISTOR TO DIAGNOSTIC 516 GN BLOWER MOTOR (MEDIUM) Condenser - Motor B-9 7 Hydraulic Oil Temp (EMS) - Switch A-7 18 Relay (Magnetic Switch): A relay is an electrical component that is activated by electricity.
Front Wiper - Motor B-4 8 Hydraulic Oil Filter Press (EMS) - Switch A-9 27
It has a coil that makes an electromagnet when current flows through it. The
304 WH STARTER RELAY NO.1 OUTPUT 517 BU BLOWER MOTOR (LO)
306 GN STARTER RELAY COIL TO NEUT START SW OR KEY SW 521 YL A/C SW TO REFRIGERANT SW Left Wiper - Motor F-5 9 Switch - Hydraulic Oil Filter Temp (EMS) A-9 27 7XM1-UP electromagnet can open or close the switch part of the relay.

307
308
OR
YL
KEY SW TO NEUT START SW OR VMIS SENSOR MODULE
MAIN POWER RELAY COIL
522
523
WH
BR
A/C CLUTCH TO THERMOSTAT SW
WIPER - LEFT (PARK)
Rear Wiper - Motor
Right Wiper - Motor
D-8
A-6
10
11
Key Start - Switch
Left Wiper - Switch
D-5
B-7
B
A
9EM1-7399 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
310 PU START AID SW TO START AID SOL 524 BU WIPER - LEFT (LO) Starter (Prelube Atch) - Motor E-2 12 Neutral/Start - Switch D-7 C can open or close a valve or move a piece of metal that can do work.
311 WH START AID SOL TO TEMP SW 525 GY WIPER. LEFT (HI) Washer Pump - Motor A-8 13 Oil Pressure (Atch) - Switch D-2 12
321 BR BCKP ALARM LAMP TRAVEL ALARM 526 YL WIPER - RIGHT (PARK) Power - Outlet B-7 14 Operator Monitor Test - Switch C-5 B Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is
322 GY WARNING HORN (FORWARD) 527 GN WIPER. RIGHT (LO) Radio A-5 A Powertrain Oil Filter Press (EMS) - Switch A-8 27 activated by electricity and held latched by a permanent magnet. It has two coils (latch and unlatch)
Monitoring Circuits 528 PK WIPER - RIGHT (HI) Aux Start - Receptacle F-2 15 Powertrain Oil Temp (EMS) - Switch A-3 19 that make electromagnet when current flows through them. It also has an internal switch that places
403 GN ALTERNATOR (R)TERM. 600 BR DASH LAMP BASIC
the latch coil circuit open at the time the coil latches.
Relay B-9 7 Powertrai - Switch n Oil Filter Temp (EMS) A-8 27
404 YL OPR MON HYD OIL TEMP 608 GN FLOOD LAMP - REAR Main - Relay F-8 E Rear Wiper - Switch B-8 A
405 GY OPR MON OIL PRESS. (LO SETTING) 609 YL FLOOD LAMP - SIDE Start - Relay F-7 E Right Wiper - Switch B-8 A
Harness and Wire Symbols
406 PU OPR MON COOLANT TEMP 610 OR HEAD LAMP BASIC Blower Motor Speed - Resistor C-4 7 Ripper Pin Puller - Switch A-8 D Wire, Cable, or Harness Harness Identification Letter(s):
410 WH OPR MON FAULT ALARM 779 WH COUPLER ENGAGE SOL Assembly Identification: Includes (A, B, C, ..., AA, AB, AC, ...)
Starter Diagnostic - Resistor F-1 12 Running Lamp - Switch C-5 B
Harness Identification Letters and
411 PK OPR MON MASTER FAULT LAMP 780 PU COUPLER DISENGAGE SOL Coolant Temperature (Gauge) - Sender A-2 16 Start Aid - Switch C-5 B Harness Connector Serialization Code:
Harness Connector Serialization
The "C" stands for "Connector" and the
412 BU OPR MON COOLANT FLOW 978 GN CST AUTOSHIFT - SLOW MODE SW 1 Fuel (Gauge) - Sender B-9 17 Thermostat (A/C) - Switch E-6 7 Codes (see sample).
number indicates which connector in the
413 BR OPR MON FUEL PRESS. 987 WH DIVERTER SOL AG-C4 L-C12 harness (C1, C2, C3, ...).
Always check component part numbers with Parts Manual for your specific machine. L-C12
Machine locations are repeated for components located close together. 111-7898 3E-5179 3E-5179
A = Components located in operator's compartment. Part Number: for Connector Plug 1
Part Number: for Connector Receptacle
B = Components located in dash.
C = Components located in operator's left console.
2
D = Components located in operator's right console. Plug Receptacle
E = Components located on relay panel. Pin or Socket Number
5A
1 Deutsch connector: Typical representation
Component
of a Deutsch connector. The plug contains all Fuse (5 Amps) 9X-1123 Part Number
2 sockets and the receptacle contains all pins.
325-AG135 PK-14
1 Sure-Seal connector: Typical representation Harness identification code:
of a Sure-Seal connector. The plug and receptacle This example indicates wire group 325, Wire Gauge
2 contain both pins and sockets. wire 135 in harness "AG". Wire Color

© 2014 Caterpillar, All Rights Reserved Printed in U.S.A.

8
10

17 23
D B
C
3
5 E 11
18 9
4 15
7 13 27
3
14 22 6

(Dimensions: 39 inches x 28 inches)

1
RESISTOR AND SOLENOID SPECIFICATIONS 4 2
16
Component Part No. Resistance (Ohms) ¹ 25
26
Resistor - Blower Motor Speed 9G-1950 Overall 2.0 ± .1; Tap 1.0 ± .05 OFF MACHINE SWITCH SPECIFICATIONS
20 2 Normal
Resistor - Starter/Diagnostic 6T-2217 150.0± 7.5 HARNESS CONNECTOR LOCATION CHART Part No. Function Actuate Deactuate Condition
Solenoid - Air Conditioner Clutch 102-0347 14.4± 0.6 24 Machine Schematic Machine Schematic

SENR8332-03
12 21 Connectors Harness And/Or Components Connectors Harness And/Or Components 362 ± 29 mN 303 mN MIN Normally
Solenoid - Diverter Valve 127-0574 31.0 ± 3.0 Location Location Location Location
A - 6Y-4522 K - 120-6547 3E-2030 Engine Coolant Flow (EMS) (1.3 ± 0.1 oz) (1.1 oz MIN) Open
Solenoid - Ripper Pin Puller 9G-9988 24.9 19
E Diagnostic Connector F-8 6 Contacts * Prelube Timer/Solenoid D-2 129.4 ± 2.8°C 118.3°C Normally
Solenoid - Start Aid 3E-6332 6 20 Contacts 3T-5825 Power Train Oil Temp (EMS) (265.0 ± 5.0°F) (245.0°F) Closed
A - 6Y-4522 A - 6Y-4522
¹At room temperature.
* Operator Monitor (EMS) C-6 D E - 6Y-4523 A-7 93.0 ± 21.0 kPa 69.0 ± 21.0 kPa Normally
5 Contacts
A - 6Y-4522 A - 6Y-4522 6T-4949 Engine Oil Pressure (EMS) (13.5 ± 3.0 psi) (10.0 ± 3.0 psi) Open
B B - 127-5121 E-4 B M - 61-8611 A-5 107.2 ± 2.8°C 91.0°C MIN Normally
9 Contacts A - 6Y-4522 A - 6Y-4522 7N-9785 Engine Coolant Temp (EMS) (225.0 ± 5.0°F) (196.0°F MIN) Closed
B UU - 129-6268 E-4 B B - 127-5121 C-5 37.8 ± 2.8°C 26.7°C MIN Normally
B - 127-5121 A - 6Y-4522 8C-3569 Hydraulic Oil Filter Temp (EMS) (100.0 ± 5.0°F) (81.0°F) Closed
B UU - 129-6268 E-5 4 H - 9N-4596 E-7 37.8 ± 2.8°C 26.7°C MIN Normally
MM - 127-5120 A - 6Y-4522 8N-1693 Engine Coolant Temp (St Aid) (100.0± 5.0°F) (80.0°F) Closed
1 NN - 9U-9463 C-7 B N - 9W-1816 E-4
101.7 ± 2.8°C 93.3°C MIN Normally
8 Contacts MM - 127-5120 A - 6Y-4522 (215.0 ± 5.0°F) (200.0°F MIN) Closed
8N-2248 Hydraulic Oil Temp (EMS)
1 NN - 9U-9463 C-8 B MM - 127-5120 E-4
51.7±2.8°C 43.0°C MIN Normally
MM - 127-5120 A - 6Y-4522
4 Contacts 9G-3341 Power Train Oil Filter Temp (EMS) (125.0± 5.0°F) (110.0°F MIN) Closed
* Radio A-5 * Ripper Pin Puller Solenoid C-9
93.0 ± 21.0 kPa 69.0 ± 21.0 kPa Normally
A - 6Y-4522 MM - 127-5120
9W-3187 Fuel Pressure (EMS) (13.5 ± 3.0 psi) (10.0± 3.0 psi) Closed
7 Contacts 2 C - 8E-0599 C-2 * Left Wiper Motor E-5
Hydraulic Oil Filter/ 210 ± 70 kPa _ Normally
A - 6Y-4522 MM - 127-5120
2 C - 8E-0599 C-2 * Front Wiper Motor B-4 9X-7781 Power Train Filter Pressure (EMS) (30± 10 psi) -- Open
13 3 A - 6Y -4522 MM - 127-5120 30 ± 7 kPa 30± 7 kPa Normally
RELATED ELECTRICAL SERVICE MANUALS 3 A - 6Y-4522 F-4 * Right Wiper Motor B-6 105-9152 Oil Pressure (Atch) (4.3± 1.0 psi) (4.3 ± 1.0 psi) Closed
14 6 Contacts
Title Form No. A - 6Y-4522 NN - 9U-9463 275 to 1750 kPa¹ _ Normally
* Voltage Converter F-4 * Rear Wiper Motor D-8 114-5334 Refrigerant Pressure (AC) (40 to 255 psi) -- Open ²
Alternator (100-5047): 4
E 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
Consist No.100-5045 SENR4130 3 Machine locations are repeated for connectors located close together.
Consist No.100-5046 SENR2082 9 condition can be maintained down to 170 kPa (25psi).
5 4 * = Connector is located at the component.

30 Page,
C 26 ² Contact postion at the contacts of the harness connector.
Electronic Monitoring System (EMS) SENR2945 10 15 12 B = Components located in dash
21
Starting And Charging Systems SENR2947 6 D = Components located in operator's right console
2
Starting Motor: (6V-0890) 8 E = Components located on relay panel
Consist No. 6V-0890 SENR3860 A 19
17 B 22 16

20 25

23 D
1 2 24
11

27
1
18
7

Machine Component And Connector Locations

 9 8 7 6 5 4 3 2 1
FLOOD LAMP FLOOD LAMP MAIN RELAY RD-00 RD-00 RD-00
FLOOD LAMP 106-8964 106-8964 3T-0376 BK-00 BK-00
107-6689
RR RR
112-PU
TT
112-PU-14 3 200-BK WIRE GROUP COLOR DESCRIPTIONS
112-PU-14 AA BB BB CC NOTE: PLUG REQUIRED ONLY 6 200-BK
W A WITH 24V RADIOS. REMOVE GROUND CIRCUIT
POS NEG POS NEG 201-BK 1 102-RD
A CC A PLUG AND INSTALL CONVERTER
109-RD-4 2 116-BR WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS OFF
FOR 12V RADIOS.

BK-00
RD-00
109-RD-4 4 A513-PK-18
L11 WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS ON
TT SS 12V BATTERY 12V BATTERY DISCONNECT SW
FRONT FACING FLOODS A 112-PU-14 158-BR-14 5 592-BU-18 STARTING CIRCUIT

200-BK-14
608-GN-14
A 20A 3T-5760 3T-5760 7N-0718
MAY BE 107-6689 OR 308-YL A A
200-BK-14
608-GN-14

9X-7164 DEPENDING ON REMOTE CONDENSER START AID CIRCUIT

LIGHTING ARRANGEMENT BK-00 203-BK
BREAKER 3T-8728 AA Z Z CC EMS CIRCUIT
203-BK
308-YL POS NEG POS NEG GROUND 3 200-BK FLOOD PANEL LAMP CIRCUIT

BK-00
L42 12V BATTERY 12V BATTERY
RR S L42 LAMP
12 112-PU 3T-5760 3T-5760 GROUND 6 109-RD-4 GUAGE CIRCUIT
W 24V TO 12V A R 112-9378
8 308-YL 304-WH 109-RD-4 +24 V BATTERY IN 1 302-OR R
DD CONVERTER HEATER AND AIR CONDITIONER CIRCUIT
2 302-OR 308-YL +24 V SWITCHED IN 2 207-BK 1 609-YL-14 1 WH-18
F FLOOD LAMP FLOOD LAMP 3 203-BK
L42
112-PU-14
A
20A
A
124-GN-14 203-BK
119-1733
NOTE D
+12 V MEMORY OUT 4 304-WH-8 200-BK 2 200-BK-14 2 BK-18
TURN SIGNAL / WIPER WASHER CIRCUIT
F

200-BK
106-8964 106-8964

200-BK-14
608-GN-14
FLOOD LAMP FRAME
106-8964
7
10
207-BK
310-PU 109-RD-4
A A
304-WH-8 BLOWER MOTOR
L42 L42
311-WH
310-PU
+12 V SWITCHED OUT 5
A
101-RD-4
410-WH-18
OTHER COLOR DESCRIPTIONS
608-GN-14
200-BK-14

112-PU
112-PU
112-PU
112-PU
112-PU
608-GN-14 11 311-WH BREAKER 302-OR 311-WH
L38 L38 START 3T-8728 L11 L11 HIGHWAYS
200-BK-14 4 304-WH A 207-BK 158-BR-14 L20 310-PU L10
RELAY L20 L10

DIAGNOSTIC CONNECTOR
13 2 BK-18 124-GN-14 521-YL-14 124-GN-14

RD-00
AUX START
14 1 BK-18 118-3534 304-WH-8 201-BK-18
L39 L39 RECEPTACLE
15 200-BK 123-WH

609-YL-14
L41 HH AA BUS BAR
L37

6 306-GN 306-GN 200-BK-14 114-RD

L37

200-BK
16 200-BK-14 200-BK-14 121-RD RD-00 9W-0742
17 200-BK-14 200-BK 321-BR

BK-00
FF
5 105-RD 200-BK 200-BK 113-OR
K
18 200-BK 200-BK OPERATOR STATION 200-BK-14
L38 L41 D
KK KK A 19 200-BK 105-RD HARNESS B AND HARNESS A. 129-BU 200-BK-14
BK-14 2 20 105-RD 200-BK 102-RD L 200-BK
BK/PK-14 1 1 105-RD 102-RD MM 200-BK 101-RD-4
KK RESISTOR
9 102-RD 101-RD-4 200-BK-18 BK MOTOR H 116-BR 610-OR-14
BACKUP ALARM KEY A LEFT 6T-2217
102-RD 116-BR UU UU 102-RD
A
121-RD
321-BR

3T-1815 FUSE 101-RD-4 113-OR 524-BU-18 1 GN T WIPER 9 609-YL-14 9 102-RD STARTER HEAD

RD-00
L19 L19 L10

10A
3K-8782 7X-6112 6V-0890 STD LAMP
200-BK 123-WH 108-BU 3 GY 7 310-PU 7 102-RD
124-9780 106-8964

101-RD-4
A 109-RD-4 116-BR 523-BR-18 4 BR 5 608-GN-14 5 116-BR L12 ATCH PRELUBE

102-RD
102-RD
101-RD 20A SPARE 108-BU 525-GY-18 2 OR 4 610-OR-14 4 105-RD

2
1
FRONT D
129-BU MM 3 308-YL 3 308-YL LL 200-BK-14
DASH A A A
GN 112-PU 15A SIDE & REAR FLOOD LAMPS 116-BR 114-RD 2 105-RD 2 307-OR 304-WH-8

124-GN-14

410-WH-18
201-BK-18

200-BK-14
DOME A

301-BU
302-OR
101-RD

109-RD-4

304-WH-8
101-RD-4
GN RADIO 116-BR 121-RD 515-GY-14 1 102-RD 1 108-BU
FUSE A A A G S
109-RD

101-RD

310-PU
311-WH
321-BR
113-OR
123-WH

121-RD
114-RD

129-BU
200-BK

302-OR
207-BK
ALT 112-PU 10A OPERATOR MONITOR 113-OR 410-WH-18 L45 515-GY-14 8 116-BR 116-BR 8 200-BK 610-OR-14
DIVERTER 3K-8782 STD L43 L45
201-BK-18 516-GN-14 6 307-OR 337-WH 6 200-BK-14 FORWARD
BREAKER 8M-8948 ATCH L16 L16 L20

10A
VALVE SOL L41 A A L20 A MTR BAT FF
2
1

112-PU 10A GAGES & SERVICE METER 123-WH 321-BR 517-BU-14 337-WH 101-RD-4 301-BU HORN HEAD
9S-0173 L44 L49 L49 L8
X 127-0574 7T-0970 LAMP
A A 307-OR 521-YL-14 116-BR 301-BU-4 301-BU-4 A
A A 106-8964
101-RD 112-PU 15A WIPER MOTORS 108-BU 124-GN-14 307-OR 200-BK K
60A MOTOR TIE UNUSED
A MM A

L9
101-RD-4 522-WH-14
A A WIRES BACK

L11
112-PU 15A CIGAR LIGHTER 129-BU 200-BK-14 592-BU-18 2 592-BU-18 L11 TO HARNESS

322-GY-14
200-BK-14
U 109-RD-4 L22 A513-PK-18 3 A513-PK-18
A A L22 K
987-WH
201-BK

109-RD-4 109-RD 10A FORWARD HORN 114-RD 102-RD-18 1 102-RD UU K 200-BK JJ

E 109-RD
A A
TO GAGE
108-BU 4 108-BU L49 A 116-BR L7 L7
BK-00
EE A FORWARD
D E
109-RD 109-RD 10A BACK-UP ALARM 121-RD B 307-OR HORN

2
1
X B PANEL

L12
200-BK 102-RD-14 1 102-RD C 337-WH 7T-0969
L12 LL
2
1

U FUSE HOLDER FUSE MOUNTING

101-RD-4
105-RD 2 105-RD

200-BK-14
610-OR-14
200-BK-14
522-WH-14
A PANEL BOLT LL

207-BK
RIPPER 4K-5122 NOTE C 308-YL 3 308-YL
LAMP

BK-6
L37

L38

L39

FLOOD RELAY PANEL 307-OR 6 307-OR

L21
LAMP
OPERATOR STATION B B 7N-9967 L21
116-BR-14 8 116-BR
107-6689 BASE A EE JJ
610-OR-14 4 610-OR-14 310-PU 200-BK-4
L43 N N 7G-9730 608-GN-14 5 608-GN-14 610-OR-14
200-BK-14

121-RD
321-BR
200-BK
987-WH

200-BK
600-BR
608-GN-14

ENG

L43
310-PU 7 310-PU 609-YL-14
608-GN-14

200-BK-14

608-GN-14
200-BK-14

509-WH-18 H A 609-YL-14 9 609-YL-14 608-GN-14 FRAME BLOCK

- T
508-PU-18 + 1 200-BK B A
608-GN-14
200-BK-14

NN L45 THERMOSTAT
2 306-GN
L44 SW
3 307-OR
LEFT L44 3E-5465
4 321-BR OPERATOR STATION 304-WH-8

L15
410-WH-18
SPEAKER 201-BK-18
N A L9 207-BK
U 6T-7695 L9
124-GN-14 1 124-GN-14 124-GN-14 101-RD-4

517-BU-14
516-GN-14
515-GY-14
515-GY-14
521-YL-14
124-GN-14
W RR S L15
2
1

DOME LAMP 307-OR 521-YL-14 2 521-YL-14 522-WH-14 302-OR

1
2

1
2

1
2

A 8C-9678 321-BR 522-WH-14 4 522-WH-14 521-YL-14 109-RD-4

L16
200-BK-14

608-GN-14
608-GN-14
200-BK-14

608-GN-14

608-GN-14
200-BK-14

A A
200-BK 200-BK-14 3 200-BK-14
1
2
200-BK-14
608-GN-14

521-YL-14
200-BK

3 WH-18 306-GN 517-BU-14

610-OR-14
200-BK-14
H
200-BK
121-RD
321-BR
987-WH

102-RD-18 1 RD-18 516-GN-14 A C

L27 N 1 KEY START L8
200-BK-18 2 BK-18 515-GY-14 109-RD-4 109-RD-4
RD
BK

H N 2 SW
MM 515-GY-14 L8
SS RED 9G-7641

200-BK-14
987-WH BACK UP
L35

L34

200-BK-14
L36

200-BK-12

200-BK-12
521-YL-14
522-WH-14
609-YL-14
608-GN-14
610-OR-14

410-WH-18
201-BK-18

200-BK-14
L35 N BLK
321-BR ALARM SW 515-GY-14
L21

322-GY-14
200-BK-14
610-OR-14
L27 BLU

OFF

ST
L36 L27 N 5

306-GN

307-OR

200-BK

310-PU
311-WH

113-OR

321-BR
123-WH
114-RD

121-RD
129-BU
200-BK
9N-1750

ON
121-RD 515-GY-14
N 4 GRN

L1
608-GN-14 L19 516-GN-14 200-BK
OR L17

301-BU-4
N 3

C
S
B

101-RD-4
H 517-BU-14
L33 H B B
B

200-BK
200-BK-12 L 200-BK-14
FOR ATCH FLOOD ACTION LL
200-BK NN 200-BK-14

609-YL-14
608-GN-14
116-BR-14
102-RD-14
610-OR-14

3
1
2
LAMPS REPLACE 200-BK MOTOR H ALARM
BK
9G-9813 C

308-YL
308-YL

307-OR
105-RD

105-RD
307-OR
308-YL
310-PU
HARNESS S 200-BK NEUTRAL/ BLOWER SW BLOWER
MOTOR

524-BU-18
523-BR-18
525-GY-18
200-BK-18
L20

200-BK-14
610-OR-14
WITH HARNESS RR T REAR START SW 6P-3236 9G-8697 L20
447-PK-18

108-BU
WIPER

322-GY
OR HARNESS W 779-WH 9N-1750
K
D
509-WH-18
508-PU-18

9X-3392
200-BK

780-PU K

200-BK-14
200-BK-14
200-BK

L17 307-OR 3

BK-14
337-WH 5

L49
A
200-BK
200-BK
779-WH
780-PU

L7

WH/RD-14
108-BU 108-BU 116-BR 1
2
1
3

GN
GY
BR
OR

L27
200-BK-18 A447-PK 4

L46
QQ L27 START K
102-RD-18 200-BK 2
1
3
4
2

L22 L22
200-BK-18
447-PK-18

AID SW A A
108-BU 108-BU 200-BK-12 200-BK-12 6
D

L2
3T-3453 A A

L1
NN 108-BU 592-BU-18 200-BK 200-BK K L1

1
2
L24 L26 L26 A A PRELUBE TIMER/SOL

101-RD-4
108-BU A513-PK-18 200-BK-4 200-BK-4 200-BK 2 BK-18
B L49 SS
108-BU N 200-BK-14 125-6539 A447-PK 1 BK-18 PART NO. CHG LOC
IDENT NOTE
504-YL-18

503-BR-18
505-BU-18

200-BK-14
515-GY-14
B
108-BU
108-BU

200-BK
201-BK
OIL PRESS HARNESS AS.
L46 L46 MODULE SW A 6Y-4522 16 C-6 STD
105-9152 A 1Q-3512 04 C-6 ATCH
B 127-5121 00 C-5
L40

C 8E-0599 07 C-2
L18
D 1Q-3237 01 B-1/E-1 ATCH
D 1Q-3275 02 B-1/E-1 ATCH
E 6Y-4523 03 A-7
200-BK-14 F 9W-9873 00 A-3
200-BK-18 200-BK 515-GY-14 515-GY-14 H 9N-4596 01 E-7
OPERATOR N K 120-6547 03 D-2 ATCH
200-BK-18 515-GY-14
L26 MONITOR L17
592-BU-18 A B 516-GN-14 516-GN-14 L 6Y-4207 02 B-8 ATCH
L26 3T-9100

L20
A513-PK-18 1 200-BK 517-BU-14 M 6I-8611 00 A-5

410-WH-18
201-BK-18

200-BK-12
608-GN-14
521-YL-14
522-WH-14
610-OR-14

609-YL-14
200-BK-14

609-YL-14
(Dimensions: 39 inches x 28 inches)

L24 415-GN-18 N 9W-1816 03 D-4 ATCH

108-BU TEST 15 415-GN-18 201-BK-18 4 201-BK 200-BK-14

OPERATOR STATION
L24 N
779-WH
200-BK
200-BK
780-PU

113-OR
123-WH
200-BK
200-BK
129-BU
114-RD
321-BR
121-RD

310-PU
311-WH
108-BU LAMP 11 411-PK-18 411-PK-18 411-PK-18 3 411-PK 517-BU-14 R 116-6774 01 A-2/F-2
512-GN-18 ALARM 10 410-WH-18 415-GN-18 2 415-GN RESISTOR S 8E-1631 01 E-9
L25 L25 L13 9G-1950 U 8E-3560 01 E-9 ATCH
200-BK-18

511-BR-18 +BATTERY 1 113-OR

200-BK-18

200-BK-18
200-BK-18

521-YL-14
200-BK-14
158-BR-14
A 509-WH-18 COOL FLOW 12 412-BU-18 A C W 126-9200 00 E-9 NOTE E
1
4
3
2

508-PU-18 PWR TN FLTR 19 426-BR-18 OPERATOR 6 200-BK-14 610-OR-14 Y 6Y-1200 00 B-8 ATCH

L2
L2

201-BK-18

200-BK-14
515-GY-14
415-GN
411-PK

201-BK
MONITOR LL 6Y-2510 01 D-1

L5
500-BR-18 ALTERNATOR 3 403-GN-18 1 521-YL-14 322-GY
GN-18
BK-18
BK-18
GN-18

TEST SW
SENR8332-03

501-GN-18 ENG OIL PR 5 405-GY-18 2 311-WH 200-BK-14 MM 127-5120 00 B-7 ATCH

7N8001 ACTION
502-OR-18 FUEL PR 13 413-BR-18 3 310-PU 200-BK NN 9U-9463 01 B-7 ATCH
L14 L15 B LAMP
QQ 6I-8612 01 D-9

L6
200-BK-18 COOL TEMP 6 406-PU-18 4 522-WH-14 521-YL-14
C PWR TN TEMP 7 424-GY-18
B B B
7N-1996
N 7 610-OR-14 522-WH-14 RR 1Q-3121 02 E-9 ATCH C

1
2
HYD TEMP 4 404-YL-18 201-BK BASE 5 322-GY 310-PU SS 117-8314 00 B-9 ATCH
3T-0304 L6
HYD FILTER 17 499-GY 311-WH TT 110-2982 00 F-7 ATCH

WH/RD-14
14 UU 129-6268 00 E-3 ATCH
200-BK-18
L25

RIPPER FLOOD VV 123-8329 00 B-9 ATCH

L46

9
200-BK

PIN PULLER LAMP SW

BK-14
GROUND 2 123-WH
SOLENOID 3T-1730 WIRE AS.
8 113-OR 406-PU-18 2 406-PU 406-PU
9G-9988
18 201-BK-18 441-OR-18 3 441-OR 441-OR G 4D-6565 01 A-1 STD
B B L3 L3
20 116-BR-14 609-YL-14 410-WH-18 403-GN-18 5 403-GN 403-GN G 1Q-2807 01 A-1 ATCH

L4
L36 MM L49
16 116-BR-14 608-GN-14 403-GN-18 412-BU-18 7 412-BU 412-BU P 6Y-9377 01 A-9
526-YL-18
527-GN-18
528-PK-18
510-YL-18
526-YL-18
527-GN-18
528-PK-18

511-BR-18
512-GN-18

508-PU-18
509-WH-18
523-BR-18
524-BU-18
525-GY-18
500-BR-18
501-GN-18
502-OR-18
200-BK-18

L35 ROOF B B BLOWER

A 412-BU-18 201-BK-18 6 201-BK 201-BK Q 6I-8609 00 B-4
201-BK-18
201-BK-18
201-BK-18
201-BK-18
201-BK-18
201-BK-18
201-BK-18
201-BK-18

610-OR-14
MOTOR
108-BU

L34
108-BU

9G-8693
L40

109-RD-4
116-BR-14 441-OR-18 413-BR-18 1 413-BR 201-BK T 3T-1480 03 A-8

L4
L4

201-BK-18
L40

200-BK
CONDENSOR 102-RD-14 406-PU-18 405-GY-18 4 405-GY X 8E-4863 00 E-9
MOTOR
VV 106-2721 PANEL 201-BK-18 A C JJ 9F-4337 07 E-2
593-GN-14 2 WH/RD-14 MM MM LAMP 405-GY-18 KK 9G-6259 02 E-9
5
7
8
3
2
1
4
6

2
7
6
5
4
1
3
8

RUNNING 7N-9967

405-GY
413-BR
201-BK
201-BK
200-BK-14 1 BK-14 413-BR-18 START AID
NN NN LAMP SW BASE L18
404-YL-18 SOLENOID CABLE AS.
L23

7N-8005 L5
200-BK

7G-9730 442-GY-18 3E-6332 Z 8E-5909 00 F-6

B
OPERATOR STATION

CONDENSOR 600-BR 201-BK-18 AA 8E-5907 00 F-6

MOTOR B 2 1 B B
VV 106-2721 200-BK 511-BR-18 102-RD-14 426-BR-18 BB 3P-2179 03 F-6
593-GN-14 2 WH/RD-14 508-PU-18 512-GN-18 499-GY CC 8E-5908 00 F-5
201-BK-18
201-BK-18

201-BK-18

201-BK-18
201-BK-18
201-BK-18
201-BK-18
426-BR-18
412-BU-18
405-GY-18
413-BR-18
406-PU-18

410-WH-18
424-GY-18
404-YL-18

403-GN-18
403-GN-18
441-OR-18
442-GY-18
443-YL-18

447-PK-18
4 B
200-BK-14 1 BK-14 509-WH-18 200-BK 610-OR-14 447-PK-18 DD 6T-9661 00 F-5
L13 L13 B 5
201-BK

113-OR

499-GY

123-WH
511-BR-18 508-PU-18 102-RD-14 201-BK-18 EE 2V-6166 01 F-2
200-BK-14 512-GN-18 509-WH-18 FRONT 443-YL-18 FF 9W-2531 00 E-2

PU-18
WH-18
L23 L23

610-OR
200-BK-14 WIPER 424-GY-18 HH 6I-9412 00 F-2
RELAY VV VV POWER 9X-3392 ATCH
600-BR PP 9U-8746 01 A-3
OUTLET L15 L15
3E-5239 200-BK
VV L
A 102-9235 L14 L14

2
1
593-GN-14

L48
VV C

L18
593-GN-14 200-BK 2 201-BK 403-GN-18 MOTOR H
523-BR-18
524-BU-18
525-GY-18
500-BR-18
501-GN-18
502-OR-18
526-YL-18
521-YL-14
158-BR-14

527-GN-18
528-PK-18
510-YL-18

L28
200-BK-14

310-PU
511-BR-18
512-GN-18

311-WH
129-BU 129-BU 1 403-GN-18 201-BK FUEL

L1
SERVICE L18 L48
108-BU

405-GY
201-BK
413-BR
201-BK
ALTERNATOR 200-BK 200-BK T PRESSURE
A METER SWITCH L3
129-BU FILTER COOLANT
108-8357
510-YL-18

100-5052 L5 9W-3187 TEMPERATURE SW

30 Page,

200-BK UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE

503-BR-18
504-YL-18
505-BU-18

FUEL VV C 8N-1693 NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE

GR-18 SIGNAL GR-18 3 403-GN-18 LH SPEAKER (-) WH/BK, GN/BK-18 1 509-WH-18 C

521-YL-14
522-WH-14
B L28 L28 C C
B
A
B
C

2
1
108-BU

SENDER CIGAR NOTE B: NORMALLY OPEN BEFORE INSTALLATION

S BK-18 GROUND BK-18 1 200-BK LH SPEAKER (+) WH/GN-18 2 508-PU-18 311-WH
NN

610-OR-14
200-BK-14
BK
SS NOTE C: FUSES 10A - 3K-8782, 15A - 8M-8948,

310-PU
311-WH
200-BK

406-PU
201-BK
201-BK
412-BU
441-OR
403-GN
118-0690 LIGHTER C

GN
GY
BR
OR
- - BR-18 +BATTERY BR-18 2 123-WH +24 VOLT RD-18 4 108-BU 311-WH
521-YL-14

20A - 8M-0456
200-BK-14

T
158-BR-14

BK-18
BK-18
MM + 9W-0335 NOTE D: 24 TO 12 VOLT CONVERTER NOT REQUIRED
QQ +
1
2

L23 A 5 A513-PK-18

447-PK-18

404-YL-18
442-GY-18
201-BK-18
426-BR-18

200-BK-12

608-GN-14

609-YL-14
L40 Q MM WITH 24 VOLT RADIO

4
3

2
447-PK-18 1 PK-18 6 592-BU-18

610-OR-18
Y RADIO OPTIONS

499-GY

200-BK
200-BK
129-BU

121-RD
321-BR
114-RD

322-GY
200-BK
200-BK
200-BK-18 2 BK-18 RIGHT MM
NN NN NN NN GROUND BK-18 3 200-BK-18 LL 12 VOLT RADIOS 24 VOLT RADIOS
523-BR-18

SPEAKER

501-GN-18

500-BR-18
502-OR-18
8 200-BK 3E-7140 FIXED U.S. 9X-6810 FIXED U.S.
RH SPEAKER (+) GY/VI-18 511-BR-18

1
2
6T-7695
L

3E-7141 REMOVEABLE U.S. 9X-6778 REMOVEABLE U.S.

123-WH-18 123-WH-18 RH SPEAKER (-) GY/BK, VI/BK-18 7 512-GN-18 521-YL-14

108-BU
L34 3E-6107 FIXED EUROPE 3E-7890 FIXED EUROPE
123-WH-18 123-WH-18 522-WH-14 D
ANTENNA MM 3E-6106 REMOVEABLE EUROPE 9X-5288 REMOVEABLE EUROPE

200-BK-18
L34
1 510-YL-14

200-BK-18

527-GN-18

526-YL-18
528-PK-18

610-OR-18 406-PU NOTE E: BOTH ARE ATTACHMENT HARNESSES. 1Q-2996 IS FOR

L6 L6 ENGINE COOLANT
B B

B B

B B

B B
P W

P W

P W

P W
L33

L32
610-OR-18
108-BU

NN L6 TWO FLOODS IN FENDER, AND TWO ON ROPS STRUCTURE.

L35 NN NN NN NN POWER TRAIN L6 ENGINE TEMPERATURE SW
24 VOLT RADIO 126-9200 IS FOR BOTH FLOODS ON ROPS STRUCTURE.
L36

L35 L33 TEMP HYDRAULIC OIL OIL PRESS 7N-9785

NOTE D A/C REFRIGERANT SWITCH
608-GN-14
200-BK-14

610-OR-18

4W-0485 TEMP
610-OR-18

Y MM PRESSURE SWITCH
2

6T-4949 201-BK
4W-1129 NOTE A C C
REAR WIPER SW RIGHT WIPER SW LEFT WIPER SW FRONT WIPER SW MM 123-WH-18
1
3
4
2

123-WH-18

BK-18
T
610-OR-18

L M M 114-5334
3T-6655 3T-6655 3T-6655 3T-6655 LH SPEAKER (-) WH/BK, GN/BK-18 1 509-WH-18 C ENGINE
608-GN-14
200-BK-14

108-BU 108-BU 108-BU IGN IGN LH SPEAKER (+) WH/GN-18 2 508-PU-18 BK-18 1 521-YL-14 COOLANT

BK-18
GN
GY
BR
OR

2 3
608-GN-14

447-PK-18
200-BK-12

Q Q
BK

S M M FLOW SW
4 108-BU 1 BK-18 2 513-OR-14 C
SEND SEND 3E-2030 TIE UNUSED
200-BK
200-BK

321-BR
121-RD

780-PU
779-WH
987-WH
200-BK

510-YL-18 510-YL-18 510-YL-18 +12 VOLT MEMORY YL-18 5 A513-PK-18 2 201-BK

WIRES BACK
510-YL-14

510-YL-18 DIVERTER +12 VOLT RD-18 6 592-BU-18 1 412-BU

RR GRD GRD TO HARNESS
443-YL-18

FLOOD LAMP VALVE RIGHT ANTENNA

109-RD-4
108-BU 108-BU LAMP GROUND BK-18 3 200-BK-18
106-8964 L28 L28 SWITCH AS. WIPER M LAMP M 8E-1118
7X-2058 RH SPEAKER (+) GY/VI-18 8 511-BR-18 COOLANT
610-OR-18

442-GY-18

3E-0306 MOTOR 7X-1751 7X-2058 C TEMPERATURE D

200-BK RH SPEAKER (-) GY/BK, VI/BK-18 7 512-GN-18 441-OR 610-OR-14
200-BK-18
200-BK-18

443-YL-18
424-GY-18
201-BK-18
A 1 2 A A A SENDER C

2
1
FLOOD LAMP RIPPER PIN FORWARD
L31

L H ANTENNA MM
L30

MOTOR L PULLER SW A 3 L29 L48 6N-5926 T

106-8964 200-BK-14 HORN SW 987-WH 2 BK-18 T
L 6T-6970 3T-2357 L FUEL LEVEL
WASHER 114-RD 1 BK-18 403-GN 200-BK-14
608-GN-14
200-BK-14

114-RD

114-RD

322-GY

9X-3496 12 VOLT RADIO ARC SUPRESSOR HEAD

PUMP A PP PP A
123-WH-18 123-WH-18 NOTE D 3E-9169 ALT LAMP
7T-8891 C
M POWERTRAIN

2
3
1
M LAMP 106-8964
123-WH R +
IGN 7X-2058 IGN F OIL TEMP SW C
L36

A513-PK-18
OPERATOR STATION
200-BK-18
200-BK-18
200-BK-18

511-BR-18

508-PU-18

501-GN-18
502-OR-18
200-BK-18

592-BU-18

512-GN-18

509-WH-18

200-BK-18
500-BR-18
RR RR M M Q 3T-5825 D

2
1
200-BK 610-OR-18 M A ALTERNATOR 100-5047 G 610-OR-14
L28

L28 SEND Q SEND F G

108-BU
108-BU
780-PU 129-BU 123-WH-18 4 123-WH 201-BK ATCH 3E-7577
L30 L30

L48

GN-14
GN-14
779-WH 322-GY 442-GY-18 1 442-GY-18 F AIR
GRD GRD T
443-YL-18
441-OR-18

FLOOD LAMP FLOOD LAMP L29 L48 CONDITIONER G

200-BK 114-RD LAMP 443-YL-18 2 443-YL-18 BK-6 200-BK-14
608-GN-14
200-BK-14

L29 M M CLUTCH SOL

106-8964 106-8964 987-WH 114-RD 200-BK 7X-2058 441-OR-18 3 441-OR-18 424-GY HEAD
102-0347
A L6 L6 L31
114-RD 114-RD L31 608-GN-14 COOLANT 447-PK-18 5 447-PK-18
POWERTRAIN
G BK-4 LAMP
106-8964 A

L13
321-BR TEMP 447-PK-18
OIL SENDER
121-RD 4W-0483 442-GY-18 200-BK-18
W L32 L32 8N-3844 R
BK 1 499-GY 499-GY 447-PK-18 200-BK-18 609-YL-14 1 609-YL-14 1 WH-18 FLOOD
M LAMP
BK 2 201-BK 200-BK-12 441-OR-18 443-YL 200-BK 2 200-BK-14 2 BK-18
POWERTRAIN F 112-9378
T E BK 2 426-BR HYDRAULIC E 443-YL-18 A R
OIL FILTER T T
FLOOD LAMP HYDRAULIC OIL BK 1 201-BK 200-BK GAGE
TEMP SW SENDER
106-8964
FRONT FACING
FILTER TEMP SW
8C-3569
9G-3341 T
T T E 8N-3844 T
499-GY 2 499-GY
L13
MTG BOLT
L13 THIS SCHEMATIC IS FOR THE D8R TRACK-TYPE TRACTOR ELECTRICAL SYSTEM
608-GN-14

FLOODS MAY BE
200-BK-14

107-6689 OR P P POWERTRAIN T T E 442-GY 1 442-GY-18 442-GY-18

MEDIA NUMBER: SENR8332-03
201-BK
201-BK

9X-7164 DEPENDING BK 1 499-GY OIL FILTER BK 1 201-BK HYDRAULIC 404-YL 5 404-YL-18 404-YL-18 OPERATOR STATION

L32
ON LIGHTING PRESS SW OIL TEMP SW
ARRANGEMENT
BK
P
2
E
201-BK
NOTE B
BK 2
E
426-BR
8N-2248 T 201-BK
426-BR
4
3
201-BK-18
426-BR-18
201-BK-18
426-BR-18
L32
L32
SCHEMATIC PART NUMBER: 105-9792, CHANGE: 00, VERSION: -
W T
9X-7781
E A
Components are shown installed on a fully operable machine with the key and engine off, transmission shifter
HYDRAULIC OIL 426-BR in neutral and with parking brake set.
FILTER PRESS SW 201-BK
FLOOD LAMP 9X-7781 201-BK 201-BK
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
L6 L6
107-6689 L6 Note: Refer to the Parts Manual using a specific serial number prefix in SIS before ordering parts from this schematic.
9 8 7 6 5 4 3 2 1

ABBREV COLOR SYMBOL DESCRIPTION

RD RED CIRCUIT CONNECTED

WH WHITE CIRCUIT NOT CONNECTED

OR ORANGE ELECTRICAL CONNECTION TO
MACHINE STRUCTURE
YL YELLOW
INTERNAL ELECTRICAL CONNECTION
PK PINK TO SURFACE OF COMPONENT

BK BLACK CONNECTOR

GY GRAY H# CIRCUIT GROUPING DESIGNATION

PU PURPLE
ATCH WIRE, CABLE, COMPONENT
BR BROWN
SPLICE
GN GREEN
BLADE, SPADE, RING OR SCREW
BU BLUE TERMINAL