Caterpillar 966G and 972G Wheel Loader Electrical System Schematic Manual - PDF DOWNLOAD

Page 1

Wire Description

Wire Color

101

RD

Bat (+) (Not Application Specific)

A513

PK

DC/DC Converter Memory Output

CONN 1

102

RD

Hd Lmp

A523

PU

Temp Potentiometer Pos 1

105

RD

Key Start Sw

A524

BR

Temp Potentiometer Pos 2

CONN 2

107

RD

GN

BU

Engine Shutdown-Fire Suppresion Seat Air Compressor

A525

108

A526

PK

Temp Potentiometer Pos 3 Electronic Water Valve Actuator

109

RD

Alt Output (+) Term

A527

BU

Electronic Water Valve Actuator

112

PU

Main Power Rly Output

A541

PU

Flasher To Indicator Lights

113

OR

Opr Mon Panel VMIS B+ Switched

A592

BU

Blend Door Motor (A)

114 118

RD GY

Warning Horn (Forward) Wiper Motor

A593 A594

OR WH

120

YL

Volt Convertor

A595

GN

Blend Door Position Feedback (Signal)

122

RD

Dome Lamp

A596

YL

Blend Door Position Feedback (-)

123

WH

Axle Oil Cooler

C529

GY

Lift Pressure Sensor

124

GN

A/C

C530

GN

126

PK

XMSN Ctrl

Lift Position Sensor Lighting Circuits

127

OR

Front Floods

603

PK

Rotary Beacon

128

PK

Pilot Control

604

OR

Stop Lamp

129 130

BU RD

Cigar Lighter

YL GY

Turn Lamp - Left

53

Stop Lamp/Hood Lamp

605 606

Turn Lamp - Right

25

133

OR

Work Lamps

608

GN

Flood Lamp - Rear

134

YL

Rear Floods

610

OR

Head Lamp Basic

135

BU

Radio

611

PU

Head Lamp Hi

136

GN

Sec Ster

612

GY

Backup Lamp

138

GN

Auto Lube Pump To Payload Mon

614

PU

Park/Tail/Dash/Lamp

141

RD

Aux. Ckt.

615

YL

Cab Flood Lamp/Rops

144

GN

Beacon

617

BR

Tail/Position Lamp - Left (Road Pkg)/Width

146

GY

EH Impl Control

618

PU

R.H. HI / Low Position Turn Lamp

158

BR

Blower/Selector SW

619

GN

Head Lamp Lo

168

GN

Quick Coupler

633

BU

Attach Lighting Ckt

175

RD

646

OR

177

RD

Head Breaker Main Breaker

647

GN

Light SW To Front Flood Relay Light SW To Rear Flood Relay

188

WH

Keypad Supply

661

GN

Tachometer Lamp - Smart EMS

199

RD

Aux. Ckt.

662

YL

Speedometer Lamp - Smart EMS

663

GY

Gauge Lamps - Smart EMS

200

BK

Main Chassis

691

GY

Warning Lights To Bkr

201

BK

Operator Monitor Return

692

YL

Flasher Bkr To Flasher

202

BK

XMSN Ctrl

250

BK

Payload Mon - Customer Gnd

251

BK

PK OR

270

BK

Payload Mon - System Gnd CMS Ident Code 0

700 709 720

PU

Sensor Power Supply XMSN Brake SW

271

BK

CMS Ident Code 1

727

GN

Sec Ster Motor Relay

272

BK

CMS Ident Code 2

728

BU

Sec Ster Cont SW

273

BK

CMS Ident Code 3

751

GN

Xmsn Shift Sol No. 1 or 3

274 275

BK BK

CMS Ident Code 4

752 754

YL BU

Xmsn Shift Sol No. 2

CMS Ident Code 5

290

BK

CMS Service

755

OR

Xmsn Shift Sol No. 4 or 5

291

BK

CMS Clear

761

GY

Lift Kickout Sol SW

299

BK

762

YL

A273

BK

WTL Impl Ctrl Gnd MAC-14 Trans Ctrl B-

779

WH

Bucket Positioner Sol Sw Coupler Engage Sol

795

YL

Dual Hip Sol

Description Power Circuits

Ground Circuits

Basic Machine Circuits

Wire Number

Wire Color

Connector Location

Wire Number

Description

2

CONN 4

G, I-15

55

CONN 5

G, I-15

53

CONN 6

D-14

44

CONN 7

C-14

17

Blend Door Motor (B)

CONN 8

A-13

5

Blend Door Position Feedback (+)

CONN 9

B-13

C

CONN 10

B-13

C

CONN 11

F-12

45

CONN 12

E-12

45

CONN 13

D-12

45

CONN 14

C-12

45

CONN 15

C-11

C

G-10

56

E701

PK

Auto Ride Cntl SW

E702

OR

Auto Ride Cntl SW

307

OR

Key Start SW To Power Train ECM

E707

GN

VMIS Display +V

308 310 311

YL PU WH

Main Power Relay Coil

E708 E735 F781

PK PU BR

327

PK

334 397 398

BU OR BU

Key Start SW "C" Term Shutdown Solenoid Start Aid Sol #2 Hood Raise Motor Hood Raise Motor Hood Raise Relay Coil Hood Raise Relay Coil

A300

GN

A301

WH

403

GN

405

GY

410 411

WH PK

416

OR

417 419 432

GY YL PK

441 442 443

OR GY YL

447

PK

450 453 484

YL PK YL

496

WH

499 C413

GY YL

C414

BU

E416 G485 G486

PU BU GN

500 501

BR GN

502 503 504 505

OR BR YL BU

Wiper - Front (Hi) Wiper - Rear (Park)

506

PU

507 508

WH PU

Washer - Front Washer - Rear

509 511

WH BR

512 513

Monitoring Circuits Alternator (R) Term Opr Mon Oil Press (Low aSetting) Opr Mon Action Alarm Opr Mon Master Sec Ster SW Primary Ster SW Opr Mon Parking Brake Opr Mon Brake Press (Oil) Eng Coolant Temp Gauge Hyd System Temp Gauge Power Train Temp Gauge Fuel Level Gauge Tach Sender (+)

F784

YL

G750 G755

BU GY

G760

WH

G761 G762 G763

YL BR PU

G764

PK

G766 G767 G768

GN WH GN

G787

GN

G788 H713

YL PK

H714

OR

H716 H717 H730

WH BR PK

818 819 900

BR GY PU

901

WH

910 944 945

YL OR BR

961

BR

964 973

BU BR

975

WH

976 977 E900

OR YL WH

E901

GN

E902 E903

PU YL

E904 E905 E906 E907

8

4 6 10 15

3

22

9

2

47 35

33

11

26

27 37

5

20

36 7

A

12

23 31

62 E

C

45

57

D

46

1

40

58

56

21

54

B

44

19

55

VMIS Display Clock Smart Ems Tack/Serv Mtr/Odometer Select Downshift SW (N.O.) Down shift SW (N.C.) XMSN Cont Fwd SW To Gnd

59 24

16

D

B 11

E

A 35

22 27

2

5

3

45

9

55

21 10

54

25

36 4 40

1

C

12 57

15 6

8

44

46 42

26

34 16

61

58

7

C

CONN 20

G-8

B

CONN 21

F-6

A

I-4

C

C-4

C

Customer Data Conn.

CONN 24

B-4

D

CONN 25

A-3

46

CONN 26

A-3

46

CONN 27

B-3

62

CONN 28

E-3

61

CONN 29

F-3

61

CONN 30

34

CONN 32

I-3 E-2, F-2, H-2, I-2 D-2

CONN 33

D-1

23

CONN 34

D-1

31

CONN 35

E-1

31

CONN 36

35

CONN 38

F-1 F-1, H-1, I-1, G-2 F-1

CONN 39

F-1

29

CONN 40

F-1, I-1, H-2

60

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.

966G and 972G Wheel Loader Electrical System

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.

T

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.

47 31

60 24

3PW1100-UP 3SW1225-UP 4WW720-UP 6AW500-UP 8XW756-UP 9GW508-UP

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 Symbols * Harness identification letter(s) and a serializing code. The "C" stands for connector and the number indicates which connector in the harness.

Harness identification code This example indicates wire 135 in harness "AG".

Wire, Cable, or Harness Assembly Identification Part Number For L-C12* AG-C4* Connector Assembly 3E-5179 111-7898 325-A135 PK-14 1

* * AG-C3 C-C4 130-6795 130-6795

19

39

33

Socket

Pin

Single Wire Connector

XMSN Cont Rev SW To Gnd XMSN Cont Speed 2 SW To Gnd XMSN Cont Speed 3 SW To Gnd

Wire Gauge

Wire Color

Receptacle Plug

Ground Circuit Connection Number Identification

2

XMSN Cont Neut SW To Gnd XMSN Cont Pk Brk Lever SW To Gnd Impl Cont SW TO Gnd N.O.

Machine Harness Connector And Component Locations

Impl Cont SW To Gnd N.C.

1 2

XMSN Cont Speed 1 SW To Gnd Steering Control (Fwd. Sw. I.P.) Steering Control (Rev. Sw. I.P.)

Impl Cont Pilot Press Sol Auto / Manual Sw. (1 - 4) Serial Data (Transmit) Serial Data (Receive) XMSN Shift Sol No. 6 XMSN Neutizer Override Indicator

Component Actuator - Blend Door

Schematic Location H-11

Component Location Machine Location 56

Component Sender - Fuel Level

Schematic Location C-15

Machine Location 2

A-3

19

B-15

20

Alarm - Action

E-10

C

Sensor - Engine Speed

C-14

21

Alarm - Backup

C-15

2

Sensor - Input Speed

B-13

26

Alternator

C-15

3

Sensor - Lift Cycle Head End Pressure

D-1

23

Arc Suppressor

F-10

C

Sensor - Lift Position

F-1

24

F-14,15

4

Sensor - Pedal Position

C-3

58

Breaker - Alternator

A-14

5

Sensor - Trans. Output Speed (Leading)

C-13

26

Breaker - Engine Shutdown

B-14

5

Sensor - Trans. Output Speed (Trailing)

B-13

26

Breaker - Hood

B-13

5

Sensor - Trans. Oil Temp

B-13

26

Breaker - Main

B-14

5

Shifter

G-5

A

ECPC Trans Intermediate SPD -

Breaker - Running Lamp

B-14

5

Solenoid - A/C Clutch

D-15

27

BR BU OR GY

EPC Trans Intermediate SPD Q+ ECPC Trans Intermediate SPD Q-

Breakers - 15A

D-11

C

Solenoid - Engine Shutdown

D-14

15

EPC Trans Output SPD Q+ ECPC Trans Output SPD Q-

Control - Cat Monitoring System

E-5

A

Solenoid - Pilot Valve Gp

F-9

E

Control - Engine Shutdown

I-5

14

Solenoids - Prop Valve

C-13,14

26

E908

BR

Control - Power Train ECM

I-10

57

Solenoid Valves - Ride Control

D-1

31

WH YL

Control - Water Valve / Blend Door

Radio Speaker - Left

E909 E919

ECPC Trans Input SPD + ECPC Trans Input SPD -

Radio Speaker - Left (Common) Radio Speaker - Right

E920 E921

BR PK

GN OR

Radio Speaker - Right (Common) A/C Compressor/Refrigerant Pressure SW

E922 E955

515 516

GY GN

Blower Motor (Hi) Blower Motor (Medium)

517

BU

518 521

OR YL

Blower Motor (Low) Hazard Flasher To SW A/C SW To Refrigerant SW

522 537

WH GN

538 539 540

BR BU WH

Data Link + (CAT) Data Link - (CAT) Selector Switch Fork Position Select CST Autoshift- Auto/Manual SW 2 CST Autoshift- Sol Return Ride Cont Solenoid 1 CST Autoshift- Auto/Manual SW 1 ECPC Trans Output SPD + ECPC Trans Output SPD ECPC Trans Intermediate SPD +

Batteries

G-11

A

Solenoid - Start Aid

I-5

13

AUX Lower Proportional Sol

Control - WLPCS ECM

C-4

59

Stud - Terminal

D-11

C

AUX Lift Proportional Sol Rackback Proportional Sol

Converter - Voltage

H-5

B

Switch - A/C Refrigerant

D-15

27

Dimmer - Control

E-11

C

Switch - Auto Ride Control

B-5

D

GN OR

Dump Proportional Solenoid WLPMS PHII Keypad Data

Flasher

F-10

C

Switch - Auto / Manual

B-6

D

G939 K933

PK GN

Mac14 Switch Return Stick 2 Bypass Sol

Fuses

A-14

5

Switch - Beacon

A

Fuses - 10A

D-11

C

Switch - Blower

K977

PK

Fuses - 15A

D-11

C

N939 P910

GN BR

ECPC Trans Oil Temp Sensor Ride Cont Solenoid 2 Secondary Steering Test SW Input

Guage - Quad

E-4

Ground - Cab

A/C Clutch To Thermostat SW Turn Signal SW To Flasher

P916 P976

OR BR

Steering Control (Neut. Sw. I.P.) Quick Coupler SW to Low Pressure Sol

Ground - Cab

Hazard Indicator Turn Signal Indicator Basic/Right

X972 X973 X974

GN BU BR

Part Throttle Auto Shift Pos 1 Part Throttle Auto Shift Pos 2

Ground - Cab

Part Throttle Auto Shift Pos 3

1 2

105-9344

Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.

Component Identifiers (CID¹) Module Identifier (MID²) Caterpillar Monitoring System (MID No. 030)

CID

Component

0096

Fuel Level Sender

0100

Engine Oil Pressure Sensor

0110

Engine Coolant Temperature Sensor

0177

Torque Converter Oil Temperature Sensor

0248

Data Link

0263

Sensor Power Supply

0271

Action Alarm

0324

Action Lamp

0427

Temp Sensor (Front Axle Oil)

0428

Temp Sensor (Rear Axle Oil)

0600

Hydraulic Oil Temperature Sensor

0819

Display Data Link

0821

Display Power Supply

0826 0830

Temp Sensor (Torque Converter Oil) Brake Oil Temperature Sensor

CID

Failure Mode Identifiers (FMI)¹

FMI No.

Payload Control System (MID No. 074) Component

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.

0168

Electrical System Voltage

8

Abnormal frequency, pulse width, or period.

D

0254

Payload Electronic Control Module

9

Abnormal update.

B-9

D

0350

Lift Linkage Position Sensor

10

Abnormal rate of change.

Switch - Brake Oil Pressure

I-3

34

0364

Head End Lift Cylinder Pressure Sensor

11

Failure mode not identifiable.

A

Switch - Bucket Positioner

F-1

35

0769

Rod End Lift Cylinder Pressure Sensor

12

A-8

D

Switch - Dimmer

C-3

58

F-9

57

Switch - Disconnect

B-15

36

0817 0820

Internal Backup Battery Keypad Data Link

13

F-10

57

Switch - Downshift

F-8

E

Ground - Cab

H-8

57

Switch - Engine Oil

B-14

37

Ground - Cab

H-10

57

Switch - Forward Horn

G-4

A

Ground - Chassis

H-5

17

Switch - Front Axle Temperature

D-1

39

Ground - Right Frame Boss

E-14

6

Switch - Front Intermittent Wiper

B-4

D

Ground - Right Rear Frame

B-15

7

Switch - Hazard Lamp

G-9

B

Ground - Steer Column

E-5

A

Switch - Hood Actuator

A-14

40

Ground - (Strap) Frame to Cab

G-12

8

Switch - Hydraulic Oil Level

A-2

19

Ground - To Engine

C-15

9

Switch - IMPL Filter

I-4

14

Ground - To Engine Block

D-14

10

Switch - Implement Detent Override

F-8

11

Horn - Forward

H-1

12

Switch - Key Start

D-5

A

Horns - Forward

E-1

12

Switch - Lift Position

F-1

35

Horns - Forward

I-1

12

Switch - Park Brake Pressure

I-3

42

Keypad - WLPCS

B-4

59

Switch - Park / Throttle / Autoshift

B-6

B

Motor - Actuator

A-14

1

Switch - Primary Steer

I-3

C

Motor - Blower

G-11

56

Switch - Quick Coupler

H-9

31

Motor - Front Wiper

D-5

A

Switch - Rear Axle Temp

C-14

33

Motor - Rear Wiper

F-10

C

Switch - Rear Wiper

C-9

D

I-4

C

Switch - Run/Work/Panel/Tail

C-8

D

D-14

15

Switch - Secondary Steering Test

H-8

B

Motors - Washers

A-3

16

Switch - Secondary Steering

I-3

Relay - Backup Lamp

I-15

25

Switch - Selector AC/Heat

B-9

C D

Relay - Front Flood

E-10

C

Switch - Service Brake Pedal As.

B-3

58

Motor - Secondary Steer Motor - Starter

CID

Power Train ECM (MID No. 081)

Component

0041

+8 Volts Sensor Supply

0070

Parking Brake Switch

0149

Ride Control Solenoid 2

0168

Electrical System Voltage

0177

Transmission Oil Temperature Sensor

0190

Engine Speed Sensor

0270

Cat Monitor System Harness Code

0363

Ride Control Solenoid 1

0367

Ride Control Switch

0368

Transmission Auto/Manual Switch

0444

Start Relay

0562

Cat Monitor System

0585

Transmission Output Speed Sensor 1

0621

Downshift Switch

0622

Upshift Switch

0623

Directional Switch

0631

Transmission Clutch 1 Solenoid

0632

Transmission Clutch 2 Solenoid

0633

Transmission Clutch 3 Solenoid

0634

Transmission Clutch 4 Solenoid

0635

Transmission Clutch 5 Solenoid

0636

Transmission Clutch 6 Solenoid

0638

Start Relay

0668

Transmission Shift Lever

Relay - Hood Raise / Lower

A-14

5

Switch - Start Aid

G-5

A

Relay - Implement Interlock

D-10

57

Switch - Start Aid Coolant

B-15

22

Relay - Main

A-14

5

Switch - Stop Lamp

B-3

60

Relay - Rear Flood

E-11

C

Switch - Opr. Mon. Mode Select

G-5

A

I-4

18

Switch - Temperature Selector

B-9

D

Relay - Secondary Steering Intermediate

F-11

C

Switch - Thermostat

G-11

56

0672

Torque Converter Output Speed Sensor

Relay - Start

B-14

5

Switch - Trans. Neutralizer Override

B-5

D

0673

Speed Sensor (Transmission Output 2)

Resistor - Blower

G-11

56

Switch - Turn Signal

F-6

A

0793

Pressure Switch (Primary Steering)

Sender - Engine Coolant Temp

B-15

A

Tach / Speedometer

E-4

A

0794

Pressure Switch (Secondary Steering)

Machine locations are repeated for components located close together.

0795

Secondary Steering Intermediate Relay

A = Operator Compartment - Dash Console B = Operator Compartment - Left Overhead Console

1327 1521

Position Sensor (Left Brake Pedal) Part-Throttle Autoshift Selector Switch

Relay - Secondary Steering

C = Operator Compartment - Relay / Fuse Panel D = Operator Compartment - Right Overhead Console E = Operator Compartment - Right Console

Resistor, Sender and Solenoid Specifications

Part No.

² The MID is a diagnostic code that indicates which electronic control module diagnosed the fault.

Solenoid:

152-6480

Solenoids:

5.12 ± .26

Pilot Valve

85.3 ± 5.0 8.7 ± 0.4

Harness Code

1

Numeric Readout

2

Service

3

Tattletale

4

6.0

Units

5

Hydraulic Oil Temperature

560 to 716 @ 54ºC (130ºF)

Cal 1

6

Torque Converter Temperature

72 to 82 @ 110ºC (230ºF)

Cal 2

7

560 to 716 @ 54ºC (130ºF)

Cal 3

8

160-8408

Solenoids:

Prop Valve

175-7507

Sender:

Fuel Level

3E-1906

Solenoid:

A/C Clutch

3E-6332

Solenoid:

Start Aid

Sender:

9G-1950

Resistor:

Number 0

Ride Control

7N-8532

Service Mode

32.6 ± 1.6

Solenoids:

Sender:

Monitoring System Service Modes Operator Mode Sequence

152-8340

4W-9972

Resistance (Ohms)¹

Engine Shutdown

Full: 20 - 35 Empty: 240 - 265 17.6 ± 0.6

Engine Coolant Temperature

72 to 82 @ 110ºC (230ºF) Overall: 2.0 ± 0.1

A/C, Heater Blower Motor

Monitoring System Operator Modes

Tap: 1.0 ± .05

Operator Mode

Number

Service Meter

0

Bad device or component.

Odometer - Machine Travel Distance

1

Out of calibration.

Tachometer

2

14

Parameter failures.

15

Parameter failures.

Scrolling (Diagnostic)

3

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.

¹ The CID is a diagnostic code that indicates which component is faulty.

Component Description

110-6465

¹ At room temperature unless otherwise noted.

Part No.

Function

114-5333

A/C (High / Low) Pressure

155-8999

Rear Axle Temperature Front Axle Temperature

174-4058

Engine Oil Pressure

174-4212

Park Brake Pressure

175-3244

Brake Oil Pressure

3E-6425

Start Aid Coolant

3E-6450

Primary Steering Pressure Secondary Steering Pressure

7X-8549

Implement Filter Switch

Off Machine Switch Specification Actuate

275 to 1750 kPa¹ (39.9 to 253.8 psi) 125 ± 3.0°C (257 ± 5.4°F) 79 kPa (11.5 psi) 8270 kPa MAX (1200 psi MAX) 10700 kPa MAX (1550 psi MAX) 38 ± 3° C (100 ± 5° F) 1200 kPa MAX (174.0 psi MAX) 110.3 - 137.9 kPa³ (16 - 20 psi)

Deactuate

117°C Min (242.6°F Min) 24 kPa (3.5 psi) 6890 ± 345 kPa (1000 ± 50 psi) 8960 ± 537 kPa (1300 ± 79 psi) 27° C MIN (81° F MIN) 700 ± 100 kPa (102 ± 14.5 psi) 86.2 - 103.4 kPa³ (12.5 - 15 psi)

Contact Position Normally Open²

Related Electrical Service Manuals Title

Normally Closed

Alternator:

Normally Open

Electric Starting Motor:

A-B, Normally Open A-C, Normally Closed A-B, Normally Open A-C, Normally Closed

³ Specifications represent a differential pressure measurement.

Form Number 107-7977

SENR4757

6V-5227

Consist:

106-8552

SENR3536

Consist:

6V-5537

SENR3581

Consist:

6V-5538

SENR4975

Normally Closed

Cat Monitoring System:

A-B Normally Open A-C Normally Closed

Payload Control System:

SENR6614

Power Train ECM:

RENR2105

SENR1394

Normally Open

¹ A hysteresis band exists: with increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed condition can be maintained down to 170 kpa (25psi). ² Contact position at the contacts of the harness connector.

Component Part Number

Printed in U.S.A.

© 2001 Caterpillar All Rights Reserved

Impl Cont Lift Proportional Sol Impl Cont Lower Proportional Sol Impl Cont Sol Return

XMSN Shift Sol No. 5 or 4

Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.

Fuse

200-L32 BK-14 Pin or Socket Number

XMSN Cont Speed 4 SW To Gnd

Sender - Torque Converter Oil Temp

Turn Signal Indicator Left

C

H-9

This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.

23

Sender - Hydraulic Temperature

Wiper - Rear (Low) Wiper - Rear (Hi)

Service Mode Plug

This indicates that the component has a wire connected to it that is connected to ground.

31

20

56

Wiper - Front (Low)

CONN 19

Normally closed switch that will open with an increase of a specific condition. No circle indicates that the wire cannot be disconnected from the component.

325-A135 PK-14

47

H-11

Opr Mon Front Brake Temp Opr Mon Rear Brake Temp Accessory Circuits Wiper - Front (Park)

C

Circuit Breaker Symbol

Flow Symbol

Level Symbol

Temperature Symbol

Normally open switch that will close with an increase of a specific condition (temp-press-etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it.

62

Actuator - Water Valve

Display Load PMS Lift Cyl Press Sensor

F-10 H-9, I-8, I-9

T

Pressure Symbol

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.

24 60

37 53

56

1

Display Data

Harness Code Conn.

CONN 37

59

A-14

Primary Ster Lamp Opr Mon Panel Hyd Oil Level Opr Mon Implement Oil Filter

ECAP Conn.

CONN 18

CONN 31

Actuator - Hood As.

Sec Ster Action Lamp

CONN 17

CONN 23

60 61

HVAC Unit

CONN 22 39

Xmsn Shift Sol No. 3 or 1

Starter Relay Coil To Neut Start Sw Or Key Start SW

BR

42

Aux. Start Receptacle

CONN 16

34

Control Circuits Impl. Detent Override Sw. to Impl. Interlock Relay

Starter Relay No. 1 Output

GY PU

54 28

GN

322 326

A-15 B-15

WH

321

Machine Location

C-15

306

Start Aid Sol To Temp SW Backup Alarm Lamp Travel Alarm Warning Horn (Forward)

Schematic Location

CONN 3

304

Start Aid SW To Start Aid Sol

Connector Number

Accessory Circuits (Continued)

Electrical Schematic Symbols And Definitions

RENR4375 December 2001

Machine

Machine Codes

Code

966G

18, 20, 42

972G

19, 21, 44


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.