768C TRACTOR 768C TRUCK ELECTRICAL SYSTEM SCHEMATIC | CAT Machines Electrical Troubleshooting

SENR6395

December 1993

768C Tractor & 796C Truck

Electrical System

768C:

2X371-399

769C:

1X6001-6599

1993 Caterpillar

Printed in U.S.A.

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 PRESS.

102 BU HDLMP 515 GY BLOWER MOTOR (HI)

103 YL AUX CKT 516 GN BLOWER MOTOR (MEDIUM)

105 BR KEY SW 517 BU BLOWER MOTOR (LO)

107 WH ENG SHUT - DOWN FIRE SUPPR 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 RELAY OUTPUT 537 GN TURN SIGNAL SW TO FLASHER

113 OR OPR MON PANEL B+ SWITCHED 539 BU TURN SIGNAL INDICATOR BASIC/RIGHT

121 YL BACKUP ALARM TO LAMP 540 WH TURN SIGNAL INDICATOR LEFT

122 BU AUX CKT A510 OR A/C PRESSURE CUT OUT SW SIGNAL 1

123 WH AUX CKT

Lighting Circuits

124 GN A/C 602 WH DOME LAMP

126 PK XMSN CONT 604 OR STOP LAMP

132 PK AETA CONT 605 YL TURN LAMP - LEFT

136 GN SUPPLSTER 606 GY TURN LAMP - RIGHT

137 OR SUPPL STER MOTOR FUSE 610 OR HEAD LAMP BASIC

138 GN AUTO LUBE PUMP TO PAYLOAD MON 611 PU HEAD LAMP HI

139 OR AUXCKT 614 PU PARK/TAIL/DASH LAMP

173 YL AUXCKT 619 GN HEAD LAMP LO

192 GN SUPPL STER BKR TO RELAY 639 WH LEFT HAND STOP/TAIL LAMP

Ground Circuits

640 GN RIGHT HAND STOP/TAIL LAMP

200 BK MAIN CHASSIS

Control Circuits

201 BK OPR MON PANEL 700 PK AETA TEST SW

202 BK XMSN CONT 703 BU XMSN UP SOL

203 BK CHASSIS DIAGNOSTIC 704 GY XMSN DOWN SOL

207 BK STARTER DIAGNOSTIC 705 PK XMSN LOCKUP CLUTCH SOL BASIC

209 BK FIRE SUPPR GROUND 706 BR XMSN RETARDER SW

212 BK AETA CODING PIN 16 707 PU XMSN BED RAISE SW

213 BK AETA CODING PIN 17 709 OR SENSOR POWER SUPPLY

215 BK AETA CODING PIN 19 710 GN XMSN SPEED PICKUP SIGNAL

216 BK AET A CODING PIN 20 711 BR XMSN LEVER CODE 1

217 BK XMSN ID CODE 2 712 WH XMSN LEVER CODE 2

218 BK XMSN ID CODE 1 713 OR XMSN LEVER CODE 3

219 BK XMSN ID CODE 0 714 YL XMSN LEVER CODE 4

227 BK XMSN ID CODE 3 715 GN XMSN LEVER CODE 5

231 BK XMSN SW 716 BU XMSN LEVER COPE 6

237 BK KBI ETHER CONT GROUND 720 PU XMSN BRAKE SW

Basic Machine Circuits

721 BR XMSN GEAR CODE 1

301 BU STARTER NO. 1 SOL 722 WH XMSN GEAR CODE 2

302 OR STARTER NO. 1 RESISTOR TO DIAGNOSTIC 723 OR XMSN GEAR CODE 3

304 WH STARTER RELAY NO. 1 OUTPUT 724 YL XMSN GEAR CODE 4

306 GN STARTER RELAY COIL TO NEUT START SW 725 GN XMSN GEAR CODE 5

307 OR KEY SW TO NEUT START 726 BU XMSN GEAR CODE 6

308 YL MAIN POWER RELAY COIL 727 GN SUPPL STER MOTOR RELAY

310 PU START AID SW TO START AID SOL 728 BU SUPPL STER CONT SW

311 WH START AID SOL TO TEMP SW 733 BR SWITCHING GEAR CODE 1 FRONT

313 GY STARTER NO. 2 RESISTOR TO DIAGNOSTIC 734 WH SWITCHING GEAR CODE 2 FRONT

314 PU STARTER RELAY NO. 2 OUTPUT 735 OR SWITCHING GEAR CODE 3 FRONT

321 BR BCKP ALARM LAMP TRAVEL ALARM 736 YL SWITCHING GEAR CODE 4 FRONT

326 PU KEY SW "C" TERM. 737 GN SWITCHING GEAR CODE 5 FRONT

327 PK SHUTDOWN SOL 767 WH AETA PICKUP POWER

Monitoring Circuits

768 OR AETA PICKUP XMSN

403 GN AL TERNA TOR (R) TERM. 769 BU WHEEL SPEED PICKUP LEFT

405 GY OPR MON OIL PRESS. (LO SETTING) 770 GN WHEEL SPEED PICKUP RIGHT

406 PU OPR MON COOLANT TEMP 772 BR AETA RETARDER SW

407 PK

OPR MON CONVERTER/RETARDER OIL

TEMP

773 GY AETA SERVOVALVE

408 WH OPR MON SYSTEM AIR PRESS. 774 YL AETA SOL - LEFT

409 OR OPR MON NEUT 775 BR AETA SOL - RIGHT

410 WH OPR MON ACTION ALARM 777 PU BRAKE RELEASE MOTOR

411 PK OPR MON ACTION LAMP 794 YL PAYLOAD MON XMSN SPEED

412 BU OPR MON COOLANT FLOW 891 BU

NEUT START CONT TO PAYLOAD MON

SYSTEM

413 BR OPR MON FUEL PRESS. 892 BR DATA LINK (-)

415 GN OPR MON TEST SW 893 GN DATA LINK (+)

417 GY PRIMARY STER SW 918 OR ENG OVERSPEED LIGHT AND HORN

419 YL OPR MON PARKING BRAKE 919 GN ENG OVERSPEED TEST SW

426 BR OPR MON POWER TRAIN OIL FIL TER 930 BR BRAKE RETRACT SW TO RELAY COIL

437 BR

OPR MON FUEL LEVEL TO FUEL FILTER

JUMPER

943 OR TEHC SWING - JOY 2

441 OR ENG COOLANT TEMP GAGE A983 BU ENG THROTTLE CONT - SIGNAL

446 PU BRAKE OIL TEMP GAGE B770 YL FAN CONTROL SOLENOID POSITIVE

449 BU SPDOM SENDER (SIGNAL NO. 1) B771 BR FAN CONTROL SOLENOID RETURN

450 YL TACH SENDER (+) B943 PK START AID CONT LAMP 1 OUTPUT

454 GN RETARDER INDICATOR LAMP B946 OR START AID CONT MANUAL INPUT

462 YL SUPPL STER MOTOR INDICATOR B954 YL START AID CONT TEST SW INPUT

470 PU CANE SW NEUT B998 BU START AID CONT LAMP 2 OUTPUT

472 OR PARKING BRAKE SW TO OVERSTROKE SW D966 GY AFTERCOOLER COOLANT LEVEL

481 GN

CONVERTER TEMP SW TO BRAKE OIL

TEMP SW

D983 PK SEVERE SHIFT LIMIT CONT RACK SOL

D996 PU TRANSMISSION CONT SERVICE SET

D997 YL TRANSMISSION CONT SERVICE CLEAR

Harness Connector Location Chart

Connector

Machine

Location

Harness And/Or

Components

Schematic

Location

Connector

Machine

Location

Harness And/Or

Components

Schematic

Location

37 Contacts

L - 71-5545

Transmission Control

D-13

A - 71-5546

P - 8W-8484

E-9

25 Contacts

A - 71-5546

H - 71-5819

C-11

A - 71-5546

Transmission Speed Distributor

E-15

A - 71-5546

J - 8W-9717

C-12

D - 2A-6782

P - 8W-8484

C-10

A - 71-5546

Diagnostic Connector

(Starting And Charging)

D-12

L - 71-5545

Actual Gear Indicator

D-10

L - 71-5545

Y - 8X-7272

D-13

P - 8W-8484

Engine Shutdown Control

C-3

P - 8W-8484

Operator Monitor

D-2

A - 71-5546

Not Used

C-10

R - 71-4854

Traction Aid

D-15

A - 71-5546

S - 6G-9462

D-5

L - 71-5545

VV - 8W-6419

D-10

A - 71-5546

T - 71-5825

D-4

R - 71-4854

V - 8X-8728

C-14

E - 71-5822

J - 8W-9717

B-14

A - 71-5546

G - 8X-1249

E-3

P - 8W-8484

Engine Overspeed Monitor

F-1

A - 71-5546

G - 8X-1249

E-3

A - 71-5546

M - 8W-8471

D-4

A - 71-5546

L - 71-5545

E-14

A - 71-5546

N - 7X-1784

E-10

L - 71-5545

Transmission Control

E-13

A - 71-5546

R - 71-4854

D-15

VV - 8W-6419

Shift Lever Switch

D-11

H - 71-5819

Not Used

A-5

Y - 8X-7272

Z - 7T-3418

A-13

P - 8W-8484

ZZ - 8X-1482

D-9

Z - 7T-3418

Transmission Switch

A-13

T - 71-5825

TT - 71-5823

B-1

A - 71-5546

G - 8X-1249

F-3

U - 71-5824

TT - 71-5823

B-1

A - 71-5546

P - 8W-8484

E-8

E - 71-5822

Stop/Tail Lamp Module

B-14

C - 8W-9720

P - 8W-8484

C-10

H - 7I-5819

Not Used

B-5

F - 8X - 1250

P - 8W - 8484

E-7

L - 71-5545

Actual Gear Indicator

D-10

L - 71-5545

Diagnostic Connector

(Transmission Control)

E-12

L - 71-5545

Body Raise Switch

D-13

P - 8W-8484

Neutral/Start Control

F-15

L - 71-5545

LL - 2A-7073

F-14

P - 8W-8484

Supplemental Steering Control

E-2

V - 8X-8728

4 Way Solenoid

A-14

A - 71-5546

Not Used

E-7

A - 71-5546

P - 8W-8484

E-8

A - 71-5546

Q - 71-5649

E-5

A - 71-5546

Q - 71-5649

E-5

V - 8X-8728

X - 8X-8727

A-14

Machine locations are repeated for connectors located close together.

* = Connector is located at the component.

A = Connector is located behind the dash.

B = Connector is located behind the operator's seat.

C = Connector is located in the rear compartment.

D = Connector is located at the right side wall of the rear compartment.

4 Contacts

7 Contacts

6 Contacts

5 Contacts

20 Contacts

10 Contacts

9 Contacts

8 Contacts

14 Contacts

Off Machine Switch Specification

Part No. Function Actuate Deactuate Contact Position

2M-9346 Stop Lamp Press (Module)

45 kPa MAX

(6.5 psi MAX)

5 kPa MIN

(0.5 psi MIN)

Normally Open

3E-2033

Secondary Brake Air Pressure (Trans)

Parking Brake Press (EMS)

640 kPa

(92.0 psi)

530 ±40 kPa

(77.0 ± 6.0 psi)

Normally Open

3E-2034

Service Brake Air Pressure (Traction)

Service Brake Air Pressure (Trans)

80 kPa

(12.0 psi)

55 ± 20 kPa

(8.0 ± 3.0 psi)

Normally Closed

3E-2035 Brake Retarder Air Pressure

60 kPa

(8.5 psi)

28 ± 15 kPa

(4.0 ± 2.0 psi)

Normally Open

3E-7868 Transmission Filter Bypass Press (EMS)

210 ± 70 kPa

(30 ± 10 psi)

—

Normally Open

6T-7663 Engine Oil Pressure (EMS)

93 ± 20.8 kPa

(13.5 ± 3.0 psi)

68.9 ± 20.8 kPa

(10.0 ± 3.0 psi)

Normally Open

7N-7854

Brake Oil Temp (EMS)

Converter/Retarder Temp (EMS)

123.9 ± 2.8°C

(255 ± 9°F)

112.8°C MIN

(235°F MIN)

Normally Closed

7N-9785 Engine Coolant Temp (EMS)

107.2 ± 2.8°C

(225 ± 5°F)

91.0°C MIN

(1 96°F MIN)

Normally Closed

8N-1693 Engine Coolant Temp (Start Aid)

37.8 ± 2.8°C

(100 ± 5°F)

26.7°C MIN

(80°F MIN)

Normally Closed

8T-9792 Brake System Air Press (EMS)

517 ± 35 kPa

(75.0 ± 5.0 psi)

448 ± 35 kPa

(65.0 ± 5.0 psi)

1-3, Normally Closed

1-2, Normally Open

9G-3341 Transmission Oil Temp (EMS)

51.7 ± 2.8°C

(125±5°F)

43.0°C MIN

(110°FMIN)

Normally Closed

9W-3187 Fuel Press (EMS)

93 ± 21 kPa

(13.5 ± 3.0 psi)

69 ± 21 kPa

(10.0 ± 3.0 psi)

Normally Closed

9X-1159 Steering Flow

4 grams

(.14 oz)

1.5 grams

(.05 oz)

Normally Open

9X-3040 Engine Coolant Flow (EMS)

362 ± 29 mN (45.6 mm ID point)

(1.3 ± .1 oz, 1.8 in ID point)

303 mN MIN

(1.1 oz MIN)

Normally Open

Resistor, Sender and Solenoid Specifications

Part No. Component Description Resistance (Ohms)¹

9G-1950 Resistor - Blower Motor Speed Overall 2.0 ± .1; Tap 1.0 ± .05

6T-221 7 Resistor - Starter/Diagnostic Conn 150 ± 7.5

9G-9988 Solenoid - 4 Way 24.9

8T-8813 Solenoid - A/C Clutch 14.4 ± 0.6

7X-1120 Solenoids - Down Shift, Up Shift, Lockup 33.7

9X-1413 Solenoid - Engine Shutdown 3.70 ± .37

3T-0062 Solenoid - Proportional 16.0

7N-7259 Solenoid - Start Aid 6.0

¹ At room temperature unless otherwise noted.

Related Electrical Service Manuals

Form Number

Alternator (100-5047):

Consist No. 100-5046

Consist No. 100-5045

SENR2082

SENR4130

Automatic Electronic Traction Aid SENR2986

Electronic Monitoring System SENR2945

Electronic Neutral Start Control SENR3889

Electronic Programmable Transmission Control II SENR5618

Starting And Charging Systems SENR2947

Starting Motor (3T-8967) SENR3860

Title

Component Identifiers (CID) List

Electronic Programmable Transmission Control ll

(EPTC ll) (MID No. 027)

CID No. Component

168 Electrical System Voltage

190 Engine RPM Sensor

248 CAT Data Link

269 Sensor Supply

627 Parking Brake Switch

650 Harness Code

672 Torque Converter Output Speed Sensor

700 Transmission Gear Switch

701 Transmission Output Speed Sensor

702 Shift Lever Switch

704 Service Brake Pressure Switch

705 Body Raise Switch

706 Body Up Switch

707 Up Solenoid

708 Down Solenoid

709 Lockup Solenoid

Failure Mode Identifiers (FMI) List

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.

Component Location

Component

Schematic

Location

Machine

Location

Component

Schematic

Location

Machine

Location

Alarm - Action (EMS) C-2 1 Solenoid - Engine Shutdown A-3 26

Alarm - Backup B-15 2 Solenoid - Lockup A-13 27

Alternator A-3 3 Solenoid - Proportional A-14 23

Batteries A-7 4 Solenoid - Start Aid A-4 28

Breakers

C-5, C-6,

D-5, D-6

A Solenoid - Up Shift A-14 25

Control - Engine Shutdown C-3 5 Speedometer F-2 A

Control - Neutral/Start F-1 6C Switch - Backup Alarm D-11 29

Control - Supplemental Steering E-1 7 Switch - Blower E-11 16

Control - Traction Aid D-15 B Switch - Body Raise (Trans) D-13 B

Control - Transmission E-13 B Switch - Brake Master Cylinder Overstroke A-1 30

Distributor - Transmission Speed E-15 8C Switch - Brake Oil Temp (EMS) A-9 18

Dryer - Air A-8 9 Switch - Brake Retarder Press F-15 31

Flasher E-5 A Switch - Brake Retract D-3 A

Fuse - Supplemental Steering Lamp A-8 10 Switch - Brake System Air Press (EMS) C-15 32C

Fuses D-6 A Switch - Converter/Retarder Temp (EMS) A-9 33

Gauge - Air Press D-3 A Switch - Disconnect A-6 4

Gauge - Brake Oil Temp F-2 A Switch - Engine Coolant Flow (EMS) A-3 34

Gauge - Coolant Temp F-3 A Switch - Engine Coolant Temp (EMS) B-3 3

Ground - Cab/Frame C-11 10 Switch - Engine Coolant Temp (Start Aid) A-4 19

Ground - Frame B-9 10 Switch - Engine Oil Press (EMS) A-3 3

Ground - Cab E-12 11C Switch - Fuel Press (EMS) B-3 35

Lamp - Action (EMS) F-2 A Switch - Key Start F-3 A

Lamp - Brake Retarder F-2 A Switch - Operator Monitor Test D-3 A

Lamp - Engine Overspeed Warning

(Not Used)

F-2 A Switch - Parking Brake Press (EMS) C-15 36C

Lamp - Supplemental Steering E-2 A Switch - Refrigerant Press (AC) B-7 37

Meter - Service E-13 B Switch - Running Lamp E-3 A

Module - Stop/Tail Lamp B-14 12 Switch - Secondary Brake Press (Trans) E-1 36C

Monitor - Operator (EMS) D-1 A Switch - Service Brake Press (Traction) E-15 38C

Motor - Brake Retract A-11 13 Switch - Service Brake Press (Trans) E-15 39C

Motor - Starting A-6 14 Switch - Service Clear (Trans) E-13 B

Motor - Supplemental Steering A-7 15 Switch - Service Set (Trans) F-13 B

Motors - Blower E-10 16 Switch - Shift Lever D-11 29

Pickup - Engine Speed (Tach) A-4 1 7 Switch - Start Aid D-3 A

Relay - Brake Retract C-6 A Switch - Stop Lamp Press (Module) F-15 39C

Relay - Main Power D-6 A Switch - Supplemental Steering E-3 A

Relay - Starter A-6 10 Switch - Steering Flow A-8 40

Relay - Supplemental Steering Motor A-7 10 Switch - Thermostat E-11 16

Resistor - Blower Speed E-10 1 6 Switch - Traction Aid Test D-3 A

Resistor - Starter/Diagnostic Conn A-6 14 Switch - Transmission A-13 25

Sender - Brake Oil Temp (Gauge) A-9 18 Switch - Transmission Filter Press(EMS) A-9 41

Sender - Coolant Temp (Gauge) A-3 19 Switch - Transmission Oil Temp (EMS) A-9 41

Sensor - Transmission Speed A-13 20 Switch - Turn Signal D-5 A

Sensor - Wheel Speed (LH) B-15 21 Tachograph F-12 B

Sensor - Wheel Speed (RH) A-15 22 Tachometer F-3 A

Solenoid - 4 Way A-14 23

Solenoid - Air Conditioner Clutch A-3 24

Solenoid - Down Shift A-13 25

Machine locations are repeated for components located close together.

A = Components located in dash area.

B = Components located behind operator’s seat.

C = Components located in rear compartment.

A AA

325-PK-14

200-BK-14

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 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

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.

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

Machine Harness Connector and Component Locations

REAR COMPARTMENT

RIGHT SIDE WALL

OF REAR COMPARTMENT

D00252

L23

521-YL-14

522-WH-14

L25

L40

L35

L39

A A

123-WH

614-PU

200-BK-14

200-BK-8

209-BK

200-BK-14

12 11 10

9 8 7

6 5 4

6 4

3 2 1

L34

L31

L35

L39

L35

L34

L40

L48

L38

L52

L41

L42

L28

L33

L34

L31

L29

L29 L29

L27

L22

L14

L23

L18

L14

L22

L20

L46

L45

L32

L44

L49

L51

L50

L33

L49

L43

L42

L45

L30

L44

L26

L49

L2 L2

L30

L40

L39

L35

L39

L40

L39

L46

L47

L50

L51

L41

L43

L26

L44

L25

L52

L51

L50

L49

L51

L50

L49

L18

L51

L50

L49

200-BK

308-YL

200-BK

L24

L17

L16

L10

L18

L11

L11L11

L16

L10

L18

L15

L47

L19

L42

202-BK

L24

L13

614-PU

L13

123-WH

L15

L42

200-BK

L10

L11

327-PK-14

209-BK

B998-BU

A-7/A-6

027X-1784

727-GN

462-YL

202-BK

201-BK

408-WH

201-BK

201-BK-14

LEFT LAMP

RIGHT LAMP

202-BK

614-PU

604-OR

640-GN

D-10

A-3

A-1

A-13

B-13

B-14

D-15

A-69F-4337

8W-6419

5T-2832

5T-2831

5V-0439

9G-0549

8X-7272

018W-9493

008X-8728

007I-5824

017I-5825

007I-4854

007I-5649

058X-1249

017I-5546

CHG

9S-9016

173-YL

TURN LAMP

BREAKER

6N-8589

101-RD-10

J H H J H

202-BK

450-YL

619-GN-14

103-YL-14

102-BU-14

FUEL FILTER

137-OR-12

943-PK

B954-YL

123-WH

200-BK

308-YL

126-PK

410-WH

124-GN-14

200-BK

727-GN

307-OR

326-PU

308-YL

201-BK

411-PK

123-WH

200-BK-14

200-BK-14 200-BK-14

200-BK

310-PU

462-YL

103-YL-14

767-WH

700-PK

454-GN

614-PU

605-YL

606-GY

449-BU

470-PU

707-PU

202-BK

201-BK

794-YL

122-BU

200-BK

403-GN

470-PU

522-WH-14

200-BK-14

521-YL-14

124-GN-14

517-BU-14

516-GN-14

515-GY-14

MOTOR

521-YL-14

MOTOR

124-GN-14

200-BK

614-PU

327-PK-14

WH/RD-14

BK-14

200-BK-14

515-GY-14

200-BK-14

BLOWER

9G-8697

PANEL LAMP

7N-5876

THERMOSTAT

3E-5464

BLOWER SW

6P-3236

BLOWER

9G-8697

522-WH-14

614-PU

TACHOGRAPH

7D-1513

727-GN

728-BU

138-GN

326-PU

307-OR

200-BK-14

109-OR

112-PU

109-OR

101-RD

201-BK

614-PU

919-GN

918-OR

919-GN

200-BK

202-BK

STRAP AS. 7G-1060

173-YL

123-WH

314-PU

313-GY

304-WH

302-OR

203-BK

311-WH

121-YL

126-PK

132-PK

408-WH

123-WH

103-YL-14

767-WH

700-PK

454-GN

2G-4177

A-7

A-6

310-PU

202-BK

462-YL

A-15

C-5

A-1

B-1

113-OR

D-5

327-PK-14

450-YL

727-GN

522-WH-14

C-11

IGN

SEND

GND

201-BK

307-OR

126-PK

201-BK

136-GN

728-BU

326-PU

306-GN

470-PU

327-PK-14

107-WH-14

727-GN

308-YL

403-GN

450-YL

123-WH

405-GY

308-YL

727-GN

326-PU

307-OR

470-PU

728-BU

449-BU

794-YL

707-PU

411-PK

450-YL

410-WH

306-GN

201-BK

113-OR

409-OR

202-BK

614-PU

123-WH

306-GN

136-GN

891-BU

138-GN

614-PU

107-WH-14

123-WH

IGN

614-PU

SEND

GND

610-OR-14

611-PU-14

HEAD LAMP

DIMMER SW

2H-1855

539-BU

540-WH

614-PU

619-GN-14

611-PU-14

200-BK

SIG

+ -

LAMP

5D-0019

200-BK

614-PU

LAMP

5D-0019

SPEEDOMETER

3T-6256

IGN

SEND

GND

122-BU

121-YL

126-PK

132-PK

136-GN

138-GN

107-WH-14

113-OR

105-BR

450-YL

327-PK-14

138-GN

727-GN

136-GN

113-OR

107-WH-14

113-OR

107-WH-14

521-YL-14

522-WH-14

201-BK-14

521-YL-14

202-BK

707-PU

794-YL

126-PK

449-BU

202-BK

7 472-OR

L32

A-6KK

CABLE AS.

D-6

WIRE AS.

HARNESS AS.

LOCPART NO.IDENT

327-PK-14

109-OR-6

L32

START

AID SW

6T-6066

200-BK

103-YL-14

700-PK

L32

173-YL

139-OR

777-PU-10

101-RD-6

109-OR-6

BRAKE RETRACT

112-PU-12

777-PU-10

101-RD-6

109-OR-6

NEUTRAL

891-BU

PYLD MNTR

126-PK

XMSN

SPEED

DISTRIBUTOR

3T-5438

STEERING SW

9X-1159

BK-18

200-BK-8

BRAKE

RETRACT

RELAY

3E-7279

728-BU

412-BU

406-PU

405-GY

413-BR

403-GN

441-OR

446-PU

407-PK

426-BR

201-BK

481-GN

L21

202-BK

L27

200-BK

200-BK-14

BK-18

2122-BU

728-BU

200-BK

AIR DRYER

2G-2159

201-BK

426-BR

446-PU

407-PK

481-GN407-PK

BRAKE OIL

TEMP SW

7N-7854

201-BK

706-BR

D-5

112-PU-12

10A

139-OR

138-GN

123-WH

121-YL

410-WH

737-GN

736-YL

735-OR

734-WH

306-GN

107-WH-14

131415

15 14

103-YL-14

201-BK

200-BK

OPERATOR

MONITOR

8C-3508

COOL TEMP

767-WH

216-BK

700-PK

213-BK

ID CODE 1

930-BR

ID CODE 2

139-OR

619-GN-14

102-BU-14

103-YL-14

614-PU

ENG OIL PR

BRAKE ON

PRIM STER

AUX START

RECEPTACLE

GROUND

+ BATTERY

L29

773-GY

767-WH

202-BK

767-WH

770-GN

769-BU

775-BR

774-YL

212-BK

213-BK

216-BK

LAMP

610-OR-14

FLASHER

8D-6946

767-WH700-PK

A-300

138-GN

794-YL

XMSN FILTER

891-BU

CV/RTD TEMP

L12

TRACTION AID

TEST SW

6T-6066

919-GN

308-YL

310-PU

415-GN

L11

BK-18

WH-18

450-YL

200-BK

ENGINE SPEED

PICKUP

3E-7886

136-GN

301-BU

DISCONNECT SW

7N-0718

L14

304-WH

207-BK

302-OR

306-GN

RESISTOR

6T-2217

304-WH

202-BK

737-GN

736-YL

735-OR

734-WH

733-BR

202-BK

126-PK

TRANSMISSION

GEAR INDICATOR

201-BK

437-BR

412-BU

405-GY

406-PU

413-BR

403-GN

426-BR

407-PK

446-PU

ALTERNATOR

OPERATOR MON/

OVERSPEED

TEST SW

6T-6066

415-GN

919-GN

202-BK

BK-18

202-BK

767-WH

200-BK

200-BK-14

200-BK

202-BK

L19

202-BK

604-OR

537-GN

606-GY

605-YL

539-BU

540-WH

RD-00

619-GN-14

BULB

7N-9943

200-BK-14

L10

CIRCUIT GROUPING

DESIGNATION

ATCH WIRE, CABLE,

COMPONENT

CIRCUIT NOT CONNECTED

CIRCUIT CONNECTED

BLUE

GREEN

BLADE, SPADE, RING,

OR SCREW TERMINAL

INTERNAL ELECTRICAL

CONNECTION TO SURFACE

OF COMPONENT

ELECTRICAL CONNECTION

TO VEHICLE STRUCTURE

CONNECTOR

SYMBOL DESCRIPTION

BROWN

PURPLE

919-GN

405-GY

419-YL

123-WH

GRAY

918-OR

BLACK

COLOR

450-YL

ABBREV

PINK

B998-BU

YELLOW

ORANGE

201-BK

449-BU

417-GY

419-YL

201-BK

415-GN

437-BR

413-BR

COOL FLOW

311-WH

412-BU

WHITE

411-PK

207-BK

RED

203-BK

410-WH

310-PU

409-OR

408-WH

200-BK-10

407-PK

L23

406-PU

311-WH

302-OR

405-GY

426-BR

403-GN

201-BK

BRAKE

RETRACT

8C-9514

MOTOR

777-PU-10

200-BK-14

639-WH 3

TAIL IN

113-OR

(L)

S-2

(R)

S-1

2W-0104

PROPORTIONAL

SOLENOID

3T-0062

767-WH

202-BK

767-WH

202-BK

769-BU

770-GN

GROUND

SIGNAL

GROUND

SIGNAL

FUEL PR

BK AIR PR

614-PU

NEUTRAL

614-PU

ALARM

614-PU

PANEL

LAMP

7N-9967

614-PU

PANEL

LAMP

7N-9967

PANEL

LAMP

7N-9967

614-PU

PANEL

LAMP

7N-9967

200-BK

614-PU

200-BK

306-GN

SUPPLEMENTAL

STEERING MOTOR

2G-6158

BK-00 1

STARTER

3T-8967

FUSE

3K-8782

10A

12V BATTERY

9G-2648 STD

12V BATTERY

9G-2648 STD

CC BB

RD-00

304-WH-10

BK-00

STEERING

MOTOR

RELAY

3E-0154

START RELAY

3E-7279

462-YL

515-GY-14

BK-00

RD-00

BK-00

MTR BAT

MOTOR

200-BK

NEGPOSNEGPOS

200-BK

ENGINE

OIL SW

6T-7663

L21

BK-6

AIR

CONDITIONER

CLUTCH

SOLENOID

8T-8813

ALTERNATOR

100-5047

ENGINE

SHUTDOWN

SOLENOID

9X-1413

ENGINE

BLOCK

101-RD-10

614-PU

RUNNING

LAMP SW

6T-3989

720-PU

PK-18

YL-18

BK-18

GROUND

794-YL

202-BK

GY-18

WH-18

SPEED

+ BATTERY

415-GN

200-BK

462-YL

ENG OVRSPD

WARNING LAMP

7N-9967

930-BR

B946-OR

123-WH

727-GN

200-BK

307-OR

308-YL

462-YL

123-WH

SHIFT

LEVER SW

9W-0681

711-BR-18

712-WH-18

713-OR-18

714-YL-18

715-GN-18

716-BU-18

202-BK-18

470-PU-18

LEVER 1

LEVER 2

LEVER 3

LEVER 4

LEVER 5

GND VERIFY

GROUND

NEUTRAL

711-BR

712-WH

713-OR

714-YL

715-GN

716-BU

202-BK

470-PU

121-YL

321-BR

SUPP

STEER SW

6T-3990

450-YL

200-BK

441-OR

446-PU

L15

237-BK

611-PU

A G

105-BR

200-BK

BK-18

200-BK

539-BU

201-BK

539-BU

411-PK

201-BK

200-BK

611-PU

411-PK

123-WH

308-YL

454-GN

611-PU

200-BK

326-PU

540-WH

454-GN

307-OR

LEFT TURN

LAMP

7N-9967

TEST

727-GN

123-WH

540-WH

BK-18

A G

892-BR

893-GN

202-BK

START/CHARGE

DIAGNOSTIC CONNECTOR

462-YL

200-BK

310-PU

415-GN

411-PK

410-WH

405-GY

113-OR

201-BK

126-PK

408-WH

B954-YL

419-YL

412-BU

426-BR

407-PK

409-OR

ACTION

ALARM

9G-9813

308-YL

307-OR

454-GN

411-PK

EPTCII

SERVICE

SET SW

9D-3721

EPTCII

SERVICE

CLEAR SW

9D-3721

201-BK

540-WH

539-BU

943-PK

200-BK

103-YL-14

602-WH

DOME

LAMP

8C-9678

202-BK

733-BR

GN-18

BK-18

PU-18

RD-18

YL-18

OR-18

BR-18

BU-18

WH-18

PK-18

D997-YL

126-PK

202-BK

126-PK

202-BK

D983-PK

200-BK

454-GN

720-PU

202-BK

D996-PU

710-GN

202-BK

BK-18

604-PU

706-BR

BK-18

772-BR

767-WH

200-BK

321-BR

200-BK

419-YL

472-OR

707-PU

202-BK

470-PU

321-BR

121-YL

202-BK

707-PU

126-PK

D983-PK

711-BR

712-WH

713-OR

714-YL

715-GN

716-BU

706-BR

720-PU

126-PK

707-PU

202-BK

218-BK

219-BK

703-BU

704-GY

705-PK

709-OR

721-BR

722-WH

723-OR

724-YL

725-GN

726-BU

227-BK

217-BK

200-BK

LL LL

103-YL-14

123-WH

449-BU

614-PU

BRAKE OIL

TEMP GAGE

4W-2067

TACHOMETER

8C-5469

COOLANT

TEMP GAGE

4W-0483

919-GN

415-GN

614-PU

918-OR

449-BU

PROP SOL

TEST

ID CODE 0

ID CODE 4

ID CODE 3

RIGHT SP

LEFT SP

+ BATTERY

GROUND

RIGHT SOL

LEFT SOL

XMSN SP

GN-18

SPEED IN

L38

5 700-PK

767-WH

710-GN

TRACTION AID

CONTROL

3E-9224

202-BK

768-OR

132-PK 1

202-BK

769-BU

770-GN

775-BR

774-YL

773-GY

202-BK

212-BK

200-BK

D983-PK

200-BK

103-YL-14

200-BK

614-PU

6 5

D983-PK

138-GN

930-BR

139-OR

449-BU

BRAKE

RETRACT SW

6T-6066

200-BK

450-YL

200-BK

LAMP

5D-0019

123-WH

LAMP

5D-0019

123-WH 123-WH

123-WH

446-PU

441-OR

441-0R

200-BK

A510-OR

B770-YL

B771-BR

138-GN

200-BK

A510-OR

918-OR

B771-BR

102-BU-14

TRACTN AID

OR-18 4

+12V

767-WH

BRAKE

772-BR772-BR

NEUTRAL START

CONTROL

7X-1362

200-BK

470-PU

307-OR

WH-18

BR-18

BU-18

GY-18

BK-18

GN-18

PU-18

OR-18

126-PK

768-OR

RIGHT TURN

LAMP

7N-9967

306-GN

409-OR

START SW

NEUTRAL

GROUND

YL-18

OR-18

GN-18

OPR PANEL

START RELAY

PK-18

+ BATTERY

DOOR

COURTESY

LAMP SW

9D-4068

BK-18

PARKING

BRAKE SW

3E-2033

201-BK

BRAKE

AIR SW

8T-9792

HIGH BEAM

INDICATOR

LAMP

7N-9967

ACTION

LAMP

7N-9967

RETARDER

BRAKE SW

3E-2035

202-BK

408-WH

BK-18

SERVICE/RETARDER

BRAKE

TEE

SERVICE

BRAKE SW

3E-2034

STOP

LAMP SW

2M-9346

SERVICE

BRAKE SW

3E-2034

L30

105-BR

307-OR

B954-YL

308-YL

237-BK

B943-PK

307-OR

200-BK

450-YL

537-GN

540-WH

539-BU

605-YL

606-GY

7I-5823

123-WH

LAMP

7N-5876

AIR PRESS

GAGE

1W-3306

200-BK

614-PU

200-BK-14

326-PU

138-GN

RD-18

WH-18

107-WH-14

327-PK-14

200-BK

326-PU

306-GN

ENGINE SHUTDOWN

CONTROL

9G-9287

+ BATTERY

GROUND

707-PU

202-BK

REFRIGERANT SW

9W-0549

521-YL-14

513-OR-14

8X-1482

L48

E-7

E-10

D-4

B-13

B-12

B-11

E-3

RD-00

E-3

ENG SOL

BK-18

2A-7073LL

B-1000

2A-6781

F-14

L35

306-GN

TURN SW

9G-5589

EPTC-II

TRANSMISSION

CONTROL

3E-5390

202-BK

200-BK-14

START AID

SOLENOID

7N-7259

COOLANT

SENDER

6N-5926

COOLANT SW

7N-9785

FUEL SW

9W-3187

201-BK

200-BK-14

327-PK-14

RESET

437-BR

537-GN

403-GN

310-PU

413-BR

EPTCII

DIAGNOSTIC CONNECTOR

311-WH

203-BK

207-BK

308-YL

441-OR

201-BK

105-BR

109-OR

112-PU

101-RD

314-PU

307-OR

304-WH

302-OR

313-GY

L36

L37

327-PK-14

L31

202-BK

720-PU

202-BK

408-WH

892-BR

406-PU

201-BK

202-BK

201-BK

202-BK

SUPP

STEERING

LAMP

7N-9967

710-GN

707-PU

202-BK

201-BK

410-WH

GY-18

GN-18

WH-18

PK-18

BK-18

PU-18

BU-18

YL-18

OR-18

BR-18

OPR PANEL

KEY SW

STER SW

GROUND

+ BATTERY

ALTERNATOR

MAG SW

SUPPLEMENTAL

STEERING CONT

EMS

3E-5184

OPERATOR STATION

OFF (KEY)

308-YL

728-BU

200-BK

403-GN

727-GN

417-GY

403-GN

412-BU

201-BK

BK-18

327-PK-14

209-BK-14

B-15

BACKUP

ALARM SW

9G-7204

B-10

446-PU

MAIN POWER

RELAY

3T-0376

105-BR

KEY

START SW

9G-7641

326-PU

101-RD-6

L37

192-GN-10

103-YL-14

112-PU-12

RD-18

BK-18

SPARE

B-10

200-BK

308-YL

200-BK

406-PU

L28

112-PU

893-GN

D997-YL

D966-PU

101-RD

112-PU-14

SERVICE

112-PU-14

CLEAR

RD-00

L37

109-OR-6

192-GN-10

L37

209-BK-14

L36

112-PU-10

107-WH-14

DOME & STOP

LAMP

BREAKER

6N-8589

KEY

BREAKER

9G-9487

ENGINE

SHUTDOWN/FS

BREAKER

6N-8589

112-PU-12

SUPPLEMENTAL

STEERING

9G-9487

ALT BREAKER

9S-4693

122-BU

126-PK

132-PK

138-GN

113-OR

123-WH

AIR DRYER

XMSN CONTROL

TRACTION AID

PAY MON

OPER MON

GAGES

101-RD-10

BACKUP ALARM

ABUS SHIFT

10A

112-PU-12

10A

112-PU-12

105-BR

103-YL-14

101-RD-10

ALT

136-GN

BK-18

L37

BK-18

136-GN

124-GN-14

102-BU-14

132-PK

107-WH-14

122-BU

121-YL

112-PU-12

YL-18

441-OR

126-PK

611-PU-14

AIR CONDITIONER

BREAKER

6N-8589

FUSES

3K-8782

FUSE HOLDERS

4K-5122

BRAKE RETRACT

BREAKER

3T-8728

102-BU-14

124-GN-14

101-RD-6

101-RD-10

10A

DATA LINK -

FRONT GR 5

105-BR

FRONT GR 4

FRONT GR 3

109-OR-6

FRONT GR 2

101-RD-10

FRONT GR 1

DATA LINK +

WH-18

HEAD LAMP

BREAKER

3T-2662

105-BR

L36

200-BK-14

LEVER 5

774-YL

775-BR

LEVER 4

LEVER 3

LEVER 2

LEVER 1

ID CODE 3

ID CODE 2

ID CODE 1

ID CODE 0

GND VERIFY

LKUP SOL

GROUND

773-GY

BED RAISE

UP SOL

DOWN SOL

RETARDER

+ BATTERY

109-OR-6

777-PU-10

203-BK

727-GN

306-GN

462-YL

200-BK-8

101-RD-6

310-PU

450-YL

515-GY-14

419-YL

BRAKE

SECONDARY

BRAKE SW

3E-2033

GEAR 1

202-BK

209-BK-14

OR-18

GEAR 2

GEAR 3

614-PU

606-GY

605-YL

604-OR

GEAR 4

GEAR 5

321-BR

437-BR

RESISTOR

9G-1950

462-YL

207-BK

122-BU

202-BK

101-RD-6

202-BK

L16

L43

614-PU

L46

STOP IN

L34

L39

200-BK-10

BU-18

202-BK

472-OR

L27

L26

101-2991

202-BK

231-BK

709-OR

710-GN

721-BR

722-WH

723-OR

724-YL

725-GN

726-BU

705-PK

704-GY

703-BU

709-OR

710-GN

721-BR

722-WH

723-OR

724-YL

725-GN

726-BU

705-PK

704-GY

703-BU

227-BK

217-BK

218-BK

219-BK

202-BK

D-900ZZ

GROUND

SIGNAL

CONTROL GP

6V-5828

721-BR-18

722-WH-18

723-OR-18

724-YL-18

725-GN-18

726-BU-18

231-BK-18

GROUND

GND VERIFY

GEAR 5

GEAR 4

GEAR 3

GEAR 2

GEAR 1

UP SHIFT

SOLENOID

7X-1120

LOCKUP

SOLENOID

7X-1120

DOWN SHIFT

SOLENOID

7X-1120

Z Z Y

XMSN

SPEED

SENDER

3E-6955

705-PK

704-GY

202-BK

703-BU

G 231-BK

709-OR

710-GN

705-PK

704-GY

703-BU

721-BR

722-WH

723-OR

724-YL

725-GN

726-BU

202-BK

WHEEL SPEED

SENDER

3T-2469

WHEEL SPEED

SENDER

3T-2469

PARK/TURN

LAMP

3E-7741

XMSN SPEED

ID CODE 4

707-PU

PARK/TURN

LAMP

3E-7741

L17

STOP/TAIL

LAMP MODULE

7X-1670

4 WAY

SOLENOID

9G-9988

769-BU

202-BK

767-WH

202-BK

767-WH

770-GN

L18

L43

L26

202-BK

9G-0200

774-YL

775-BR

202-BK

773-GY

202-BK

215-BK

200-BK

215-BK

L14

E J

605-YL

614-PU

200-BK-14

321-BR

604-OR

606-GY

132-PK

BACK-UP

ALARM

3T-1815

BACK-UP

LAMP

9X-1439

STOP/

TAIL

LAMP

6V-1108

TURN

LAMP

6V-1119

321-BR

640-GN

606-GY

321-BR

639-WH

605-YL

768-OR

446-PU

426-BR

123-WH

207-BK

CONVERTER SW

7N-7854

426-BR

201-BK

XMSN OIL SW

9G-3341

XMSN

FILTER SW

3E-7868

BRAKE OIL

SENDER

8N-3844

201-BK

481-GN

707-PU

202-BK

L12

101-RD-10

112-PU-10

481-GN

L19

202-BK

8W-8484

710-GN

413-BR

767-WH

202-BK

767-WH

202-BK

231-BK

201-BK

311-WH

200-BK

L35

327-PK-14

306-GN

306-GN 306-GN

310-PU

200-BK

450-YL

306-GN

123-WH

614-PU

123-WH

450-YL

123-WH

L43

307-OR

326-PU

L25

727-GN

138-GN

107-WH-14

OFF

327-PK-14

8W-8471

109-OR-6

138-GN

107-WH-14

113-OR

200-BK

308-YL

308-YL308-YL

200-BK

426-BR 426-BR

200-BK-14

308-YL

326-PU

307-OR

105-BR

727-GN

200-BK

124-GN-14

410-WH

126-PK

411-PK

201-BK

126-PK

105-BR

123-WH

103-YL-14

540-WH

539-BU 539-BU

540-WH

103-YL-14

201-BK

614-PU

HI BEAM

HEAD LAMP

9X-7170

LOW BEAM

HEAD LAMP

9X-7169

200-BK

7I-5545

7T-3418

8W-9717

7I-5819

540-WH

614-PU

619-GN-14

611-PU-14

539-BU

BK-18

200-BK-14

BK-18

200-BK

200-BK-14

WH-18

RD-18

WH-18

RD-18

LOW BEAM

HEAD LAMP

9X-7169

HI BEAM

HEAD LAMP

9X-7170

540-WH

614-PU

611-PU-14

619-GN-14

539-BU

614-PU

539-BU

614-PU

611-PU-14

619-GN-14

611-PU-14

619-GN-14

B770-YL

109-OR-10

FRAME

GROUND

614-PU

103-YL-14

201-BK 201-BK

L11

918-OR

200-BK

449-BU

614-PU

200-BK

123-WH

200-BK

COOLANT

FLOW SW

9X-3040

8X-1250

7I-5822

2A-6782

BODY

RAISE SW

8C-5681

200-BK

B998-BU

727-GN

101-RD-6

614-PU

L14

8X-8727

200-BK

L45

L32

BK-6

200-BK

109-OR-6

L42

614-PU

L43

306-GN

SERVICE METER

6T-7337

STOP/

TAIL

LAMP

6V-1108

614-PU

OPERATOR STATION

TURN

LAMP

6V-1119

304-WH

200-BK

403-GN

200-BK

201-BK-14

200-BK

B946-OR

200-BK

307-OR

200-BK

201-BK

521-YL-14

513-OR-14

201-BK

NOTE

L17

L12

BK-000

BK-00

203-BK

207-BK

200-BK

BK-00

TO ENG

BLOCK

FRAME

RETARD LAMP

7N-9967

310-PU

L17

201-BK

8W-9720

L17

6D-1126

302-OR

2W-8662

L20

6G-9462

311-WH

COOLANT SW

8N-1693

301-BU

TO ENGINE

OVERSPEED

CONTROL

L13

200-BK

406-PU

403-GN

E-12

412-BU

200-BK

201-BK

405-GY

209-BK-14

8X-7029

405-GY

441-OR

413-BR

B-10

201-BK

038W-9716

202-BK

NOTE A: NORMALLY OPEN BEFORE REFIGERENT CHARGE

UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE

COMPONENTS ARE SHOWN INSTALLED ON A FULLY

OPERABLE MACHINE WITH THE KEY AND ENGINE OFF

AND THE XMSN SHIFTER IN NEUTRAL.

THIS SCHEMATIC IS FOR THE 768C AND 769C TRUCKS (9X-1142 CHG 01)

BRAKE MASTER

CYLINDER

OVERSTROKE SW

7V-5647

472-OR

419-YL

200-BK

OPERATOR STATION

202-BK

311-WH

200-BK

767-WH

105-BR

113-OR

15A

10A

20A

30A

15A

10A

15A

NOT

USED

NOT

USED

CAB / FRAME

GROUND

CAB GROUND

522-WH-14

513-DR-14

WIRES THAT HAVE BATTERY VOLTAGE

WHEN THE KEY SWITCH IS OFF.

WIRES THAT HAVE BATTERY VOLTAGE

WHEN THE KEY SWITCH IS ON.

STARTING CIRCUIT.

GAUGE CIRCUIT.

EMS CIRCUIT.

TRACTION AID CONTROL CIRCUIT.

HEATER AND AIR CONDITIONER CIRCUIT.

GROUND CIRCUIT.

ENGINE SHUTDOWN CONTROL CIRCUIT.

TURN SIGNAL CIRCUIT.

START AID CIRCUIT.

TRANSMISSION CONTROL CIRCUIT.

ALL DASHED LINES ARE ATTACHMENTS.

NOTE B

NOTE B: CONNECTORS FOR QUARRY TRUCK FAN CLUTCH COMPONENTS

ATCH