Cat 980G Series II Wheel Loader - Underground Mining Electrical System Schematic Manual Vol 1& 2 -

Page 1

Wire Description Wire Number

Wire Color

BATTERY+

727

GN

SEC STR RELAY COIL+

BU

RUNNING LAMP PWR

728

BU

SEC STR INTER RELAY COIL+

104

YL

PRODUCT LINK PWR (SWITCHED)

751

GN

CLUTCH 1 REVERSE

106

WH

LIFT/TILT POSITION SENSOR PWR

752

YL

CLUTCH 2 FORWARD

109

OR

ALTERNATOR PWR

754

BU

CLUTCH 3 FOURTH

110

GN

ENGINE ECM PWR (SWITCHED)

755

OR

CLUTCH 4 THIRD

112

PU

MAIN RELAY OUTPUT PWR

761

GY

LIFT POS SENSOR

RD

102

Power Circuits

Component Identifiers (CID¹) Module Identifier (MID²) ADEM III ECM (MID No. 036) CID

Component

Description

Control Circuits (Continued) T

Pressure Symbol

GN

FORWARD HORN PWR

762

YL

BUCKET/TILT POS SW

WH

AXLE OIL COOLER CLUTCH POWER

779

WH

QUICK COUPLER (ENGAGE SOL)

129

BU

START AID PWR

A701

GY

FUEL INJECTOR CYLINDER 1

130

GN

STOP LAMP/(BACKUP ALARM) PWR

A702

PU

FUEL INJECTOR CYLINDER 2

136

GN

SECONDARY STEERING PWR

A703

BR

FUEL INJECTOR CYLINDER 3

Component Location

Fuel Injector Solenoid #1

138

GN

PAYLOAD MONITOR SYSTEM PWR

A704

GN

FUEL INJECTOR CYLINDER 4

0002

Fuel Injector Solenoid #2

150

OR

ENGINE ECM PWR (UNSWITCHED)

A705

BU

FUEL INJECOTR CYLINDER 5

0003

Fuel Injector Solenoid #3

170

YL

PRODUCT LINK PWR (UNSWITCHED)

A706

GY

FUEL INJECTOR CYLINDER 6

Alarm - Backup

F-16

E-14, L-14

Sensor - Oil Pressure

B-14

E-13, L-13

0004

Fuel Injector Solenoid #4

174

PK

UNSWITCHED BUSS PWR

A746

PK

TURBO OUTLET PRESSURE

Alternator

C-18

D-13, L-13

Sensor - Trans. Lube Oil Temperature

E-9

D-11, M-11

Component

Schematic Location

Machine Location

Component

Schematic Location

0005

Fuel Injector Solenoid #5

175

PK

HOOD MOTOR PWR

A747

GY

ATMOSPHERIC PRESSURE

Arc Suppressor

D-18

D-13, L-13

Sensor - Trans. Output Speed

F-9

D-10, M-10

Fuel Injector Solenoid #6

177

OR

MAIN CIRCUIT BREAKER PWR

A751

YL

AFTER COOLER TEMPERATURE

Arc Suppressor 1

J-18

D-14, N-14

Sensor - Turbo Inlet Pressure

C-10

E-11, L-11

199

OR

0094

Fuel Pressure Sensor

200

BK

HOOD CONTROL PWR

F713

OR

TURBO INLET PRESS SENSOR

Batteries

A-18

C-14, K-14

Sensor - Turbo Outlet Pressure

B-14

E-12, M-12

F762

GY

START AID RELAY COIL+

Breaker - ADEM Engine Control

K-18

D-14, N-14

Solenoid - A/C Clutch

D-18

D-13, L-13

MAIN CHASSIS GND

F766

WH

DETENT ENABLE INTERLOCK

Breaker - Alternator

J-18

D-14, N-14

Solenoid - Axle Oil Cooler Clutch

K-13

E-13, L-13

Ground Circuits

0100

Engine Oil Pressure

201

BK

OPERATOR MONITOR GND

G764

PK

PARKING BRAKE SW (ON)

Breaker - Hood Actuator

K-18

D-14, N-14

Solenoids - Cylinder Head ( 1 - 6)

E-15

E-13, L-13

0110

Engine Coolant Temperature Sensor

229

BK

ENGINE ECM GND

H702

PU

REVERSING FAN RESET SWITCH (N.O.)

Breaker - Main

J-17

D-14, N-14

Solenoid - Ether Injection

I-11

D-12, L-12

0168

Electrical Power Supply

251

BK

PAYLOAD MONITOR SYSTEM GND

H703

YL

REVERSING FAN RESET SWITCH (N.C.)

Breaker - Running Lamp

K-18

D-14, N-14

Solenoid - Reversing Fan

G-18

C-14, L-14

0172

Inlet Air Temperature Sensor

299

BK

M I PL ECM GROUND

H704

PK

REVERSING FAN SOLENOID

Breaker - Unswitched Bus (Cab)

K-18

D-14, N-14

Solenoid - Ride Control 1

K-2

D-7, M-7

A274

BK

PRODUCT LINK ECM GND

H713

PK

LIFT PROPORTIONAL SOL

Control - ADEM III Engine

A-10

C-12, L-12

Solenoid - Ride Control 2

K-2

D-7, M-7

H714

OR

LOWER PROPORTIONAL SOL

Control - Product Link

D-6

E-12, M-12

Solenoids - Trans. Clutch

F-9

D-11, L-11

0174

Fuel Temperature Sensor

0253

Personality Module

0254

ADEM III ECM

304

WH

STARTER SOL START TERMINAL

H716

WH

I M PLEMENT ECM SOLENOID RETURN

Ground - Engine

A-8

D-10, M-10

Solenoid - Variable Speed Fan

D-12

D-13, L-13

0261

Engine Timing Calibration Sensor

306

GN

START RELAY COIL+

H717

BR

PILOT SOLENOID

Ground - Left Frame

H-15

D-10, M-10

Switch - A/C Pressure

D-18

D-13, L-13

Basic Machine Circuits

0262

5V DC Power Supply Sensor

307

OR

KEY SW(START)

H718

GY

BUCKET TILT POSITION SENS (SIG)

Ground - Right Frame

A-17

D-10, K-10

Switch - Axle Oil Cooler Temperature

K-13

C-11, L-11

0267

Engine Shutdown Switch

308

YL

MAIN POWER RELAY COIL+

H746

YL

VARIABLE SPD FAN SOLENOID+

Motor - Fuel Priming Pump

E-18

E-13, L-13

Switch - Brake Oil Pressure

C-6

D-9, K-9

0268

Check Programmable Parameters

317

YL

START AID SOLENOID+

H747

BR

VARIABLE SPD FAN SOLENOID-

Motor - Starter

C-18

C-12, L-12

Switch - Coolant Flow

E-16

D-12, L-12

0273

Turbo Outlet Pressure Sensor

321

BR

BACKUP ALARM

H795

PK

ENGINE ECM (SENSOR/SW RETURN)

Motors - Front Washer

B-7

D-9, K-9

Switch - Disconnect

A-17

D-13, L-13

GY

FORWARD HORN

J700

BR

ENGINE RETARDER SOL CYL 1

Relay - Ether Injection

I-16

D-11, M-11

Switch - Engine Oil Level

E-16

D-12, L-12

0274

Atmospheric Pressure Sensor

322

0291

Engine Cooling Fan Solenoid

326

PU

FUEL PRIMING PUMP

J701

GN

ENGINE RETARDER SOL 3

Relay - Main

J-18

D-14, N-14

Switch - Front Axle Temperature

J-1

C-6, M-6

0296

Tranmission ECM

397

OR

HOOD MOTOR LOWER

J702

BK

ENGINE RETARDER SOL COMMON

Relay - Start

I-18

D-14, N-14

Switch - Fuel Priming Pump

D-18

E-13, L-13 C-14, N-14

0320

Speed/Timing Sensor

398

BU

HOOD MOTOR RAISE

A893

OR

FUEL PRIMING PUMP MOTOR-

Sender - Fuel Level

L-7

D-9, N-9

Switch - Ground Level Shutdown

L-14

0342

Secondary Engine Speed Sensor

A300

GN

HOOD CONTROL LOWER

G828

WH

SENSOR PRESSURE +5V

Sensor - Atmospheric Pressure

B-14

E-12, M-12

Switch - Hydraulic Oil Level

A-6

B-9, J-9

0485

Engine Fan Reversing Solenoid

A301

WH

HOOD CONTROL RAISE

G829

GN

SENSOR PRESSURE COMMON

Sensor - Cam Shaft Speed Timing

A-15

E-13, L-13

Switch - Lift Kickout

L-2

D-7, M-7

0545

Ether Start Relay

0562

CAT Monitoring System

1582

Trans Lube Oil Temperature Sensor

403

GN

1589

Turbo Inlet Pressure Sensor

416 417

A307

THROTTLE PEDAL POS SENS

G833

PK

ENGINE TEMP SENSOR COMMON

Sensor - Coolant Temperature

C-14

E-13, M-13

Switch - Park Brake Pressure

C-6

D-9, K-9

G850

BU

AIR INLET HEATER RELAY COIL+

Sensor - Coolant Level

F-18

C-14, L-14

Switch - Rear Axle Temp

K-13

C-11, L-11

ALTERNATOR (R) TERMINAL

G856

WH

TDC PROBE+

Sensor - Crank Shaft Speed Timing

B-14

D-13, L-13

Switch - Supplemental Steering Pressure

L-6

D-9, N-9

OR

SEC STR PRESS SW (N/O)

G857

YL

TDC PROBE-

Sensor - Fuel Pressure

C-15

E-13, L-13

Switch - Tilt Kickout

K-2

D-7, M-7

GY

PRIMARY STR PRESS SW (N/O)

J843

BK

ENGINE ECM ANALOG SENSOR RTN

Sensor - Fuel Temperature

A-14

E-13, L-13

Switch - Trans Oil Level

G-9

C-12, L-12

419

YL

PARKING BRAKE SW (OFF)

J844

GY

ENGINE ECM ANALOG SENS 5VOLTS

Sensor - Hydraulic Oil Temperature

A-6

D-9, K-9

Switch - Trans Filter Bypass

F-8

E-11, L-11

426

BR

XMSN FILTER BYPASS SWITCH

900

PU

CLUTCH 5 SECOND

Sensor - Intake Manifold Air Temp

B-14

E-12, M-12

BU

AIR FILTER RESTRICTED IND

901

WH

CLUTCH 6 FIRST

Monitoring Circuits

Product Link ECM (MID No. 122) CID

GY

Component

0168

Electrical Power Supply

430

0254

Electronic Control Module (Product Link)

432

PK

BRAKE OIL PRES SWITCH (ON)

944

OR

CAT DATA LINK+

Sensor Power Supply

442

GY

HYD TANK OIL TEMP SENSOR

945

BR

CAT DATA LINK-

Alternator R-Terminal Signal

443

YL

TC OUTLET TEMP SENSOR

953

GY

M I PLEMENT ECM SENSOR RTRN

447

PK

FUEL LEVEL SENSOR

962

OR

TRANSMISSION ECM SENSOR RTRN

450

YL

ENGINE ECM (ENGINE SPD)

975

WH

XMSN ECM SOLENOID/INDICATOR RTN

453

PK

SEC STR PRESS SW (N/O)

976

OR

RIDE CONTROL ON SOLENOID

484

YL

PRIMARY STR PRESS SW (N/C)

994

GY

OIL PRESSURE (FILTERED)

496

WH

HYD TANK OIL LEVEL SENS

995

BU

COOLANT TEMPERATURE

E416

PU

LIFT CYL HEAD END PRESS SENSOR

A982

BR

ENGINE ECM THROTTLE/IND 8VOLTS

E455

BR

HYDRAULIC FILTER BYPASS SW

C967

BU

N I LET AIR TEMPERATURE

F421

YL

FUEL TEMPERATURE

C991

PK

FUEL PRESS SENSOR

G454

PK

PUMP DRIVE OIL TEMPERATURE

E900

WH

XMSN OUTPUT SPD SENS LEADING+

G479

WH

SERVICE ENGINE INDICATOR

E901

GN

XMSN OUTPUT SPD SENS LEADING-

G485

BU

FRONT AXLE OIL TEMP SW

E906

OR

XMSN OUTPUT SPD SENS TRAILING+

G486

GN

0269 1251

¹ The CID is a diagnostic code that indicates which circuit is faulty. ² The MID is a diagnostic code that indicates which electronic control module diagnosed the fault.

REAR AXLE OIL TEMP SW Accessory Circuits

Failure Mode Identifiers (FMI)¹ FMI No.

Failure Description

0

Data valid but above normal operational range.

1

Data valid but below normal operational range.

2

Data erratic, intermittent, or incorrect.

3

Voltage above normal or shorted high.

4

Voltage below normal or shorted low.

5

Current below normal or open circuit.

6

Current above normal or grounded circuit.

7

Mechanical system not responding properly.

8

Abnormal frequency, pulse width, or period.

E907

GY

XMSN OUTPUT SPD SENS TRAILING-

E908

BR

XMSN INPUT SPD SENSOR+ XMSN INPUT SPD SENSOR-

PU

FRONT WASHER PUMP+

E909

WH

WH

REAR WASHER PUMP+

E919

YL

AUX LIFT PROPORTIONAL SOL

513

OR

A/C CLUTCH SOLENOID+

E920

BR

AUX LOWER PROPORTIONAL SOL

521

YL

A/C SELECT SW (A/C POSTION)

E921

PK

RACKBACK PROPORTIONAL SOL

522

WH

A/C CLUTCH SOLENOID-

E922

GN

DUMP PROPORTIONAL SOL

C529

GY

LIFT CYL HE PRESS SENS

E963

BK

CRANK RPM SENSOR-

C530

BU

E964

WH

CRANK RPM SENSOR+

E965

BU

CAM RPM SENSORCAM RPM SENSOR+

603

PK

ROTARY BEACON

E966

YL

604

OR

STOP LAMP

K933

GN

OPERATOR MONITOR SENSOR PWR

605

YL

LH TURN LAMPS

K977

PK

XMSN OIL TEMP SENSOR

606

GY

RH TURN LAMPS

L983

WH

FUEL INJECTOR RTN CYL 1-2

608

GN

REAR FLOOD LAMPS

L984

OR

FUEL INJECTOR RTN CYL 3-4

611

PU

HEAD LAMP (HIGH)

L985

YL

FUEL INJECTOR RTN CYL 5-6

612

GY

BACKUP LAMP

N939

GN

RIDE CONTROL AUTO SOLENOID

614

PU

LICENSE PLATE/RH TAIL/DASH LAMPS

P976

BR

QUICK COUPLER RELEASE SOLENOID

615

YL

FORWARD CAB FLOOD LAMPS

R971

YL

XMSN LUBE OIL TEMP SENSOR

617

BR

LH TAIL/CLEARANCE LAMPS

R974

OR

START AID SWITCH

619

GN

FWD FLOOD/LO BEAM LAMPS

X918

PU

GND LEVEL SHUTDOWN SW (N/O)

X919

WH

GND LEVEL SHUTDOWN SW (N/C)

709

OR

Control Circuits XMSN ECM SENS/IND (+8VOLTS)

Schematic Location

Connector Number

Machine Location

CONN 1

F-6

E-10, L-10

CONN 2

H-6

E-10, L-10

CONN 3

I-6

E-10, L-10

CONN 4

J-6

E-10, L-10

CONN 5

G-6

E-10, L-10

D-17

D-12, L-12

A-14

D-12, L-12

CONN 6 CONN 8

B-14

C-7, L-7

Failure mode not identifiable.

CONN 9

C-14

C-11, L-11

12

Bad device or component.

CONN 10

D-14

E-12, L-12

13

Out of calibration.

CONN 11

G-14

C-15, L-15

14

Parameter failures.

CONN 12

K-13

C-10, L-10

15

Parameter failures.

CONN 13

K-14

C-10, L-10

16

Parameter not available.

Part No.

Resistance (Ohms)¹

CONN 14

K-13

C-13, M-13

17

Module not responding.

118-9701

Solenoid:

Reversing Fan

13.8 ± 0.4

CONN 15

H-12

E-10, L-10

18

Sensor supply fault.

128-7991

Solenoids:

Fuel Injectors

1.06 ± 0.05

CONN 16

G-8

D-13, L-13

19

Condition not met.

141-9676

Solenoid:

A/C Compressor Clutch

17.6 ± 0.6

CONN 17

A-6

C-9, K-9

20

Parameter failures.

147-5399

Solenoids:

Transmission Clutch

8.15 ± 0.6

CONN 18

B-6

D-9, K-9

148-2350

Solenoid:

5.0 ± 0.3

CONN 19

D-7

C-12, L-12

Empty: 95 ± 3.0 Full: 1.75 ± 1.75

CONN 20

L-7

D-9, N-9

CONN 21

K-4

D-7, L-7

CONN 22

J-2

C-6, L-6

CONN 23

K-2

D-7, L-7

Resistor, Sender and Solenoid Specifications

168-6452

Solenoid:

174-4913 3E-6333

Axle Oil Cooler Clutch

9.4 ± 5.0

Solenoids:

Ride Control 1 Ride Control 2

8.7 ± 0.4

Solenoid:

Ether Injection

6.0

Event Code

Part No.

Function

High Engine Coolant Temperature Derate

E017

High Engine Coolant Temperature Warning

E025

High Inlet Air Temperature Derate

E027

High Inlet Air Temperature Warning

E039

Low Engine Oil Pressure Derate

E053

Low Fuel Pressure Warning

E096

High Fuel Pressure

E100

Low Engine Oil Pressure Warning

E190

Engine Overspeed Warning

E272

Inlet Air Restriction Warning

Actuate

Deactuate

275 to 1750 kPa¹ (39.9 to 253.8 psi)

A/C (High / Low) Pressure

134-6054

Coolant Flow

362 ± 2.9 mN .141 ± .10 ozf

303 mN 1.1 ozf

Normally Open

155-8998

Axle Oil Cooler Temperature

65 ± 3.0°C (149 ± 5.4°F)

58°C Min (136.4°F Min)

Normally Open

174-4312

Parking Brake Pressure

8270 kPa MAX (1200 psi MAX)

6890 ± 345 kPa (1000 ± 50 psi)

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

Brake Oil Pressure

10700 kPa MAX (1550 psi MAX)

8960 ± 537 kPa (1300 ± 79 psi)

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

100 ± 3.0°C (212 ± 5.4°F)

92°C Min (197.6°F Min)

Normally Closed

115 ± 3.0°C (239 ± 5.4°F)

106°C Min (222.8°F Min)

Normally Closed

177-2313 177-2314 230-5771

Front Axle Monitor Oil Temperature Rear Axle Monitor Oil Temperature Supplemental Steering Pressure

1200 kPa MAX (174 psi MAX)

Normally Open ²

700 ± 100 kPa (101.5 ± 14.5 psi)

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

¹ 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.

L-C12 3E-5179

L-C12 3E-5179

1

Harness Connector Serialization Code: The "C" stands for "Connector" and the number indicates which connector in the harness (C1, C2, C3, ...).

Part Number: for Connector Receptacle

Receptacle Pin or Socket Number

1 2

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

1 2

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

5A Fuse (5 Amps)

9X-1123

Component Part Number

14

13

12

11

10

9

8

7

6

5

4

3

2

Title

Form Number 185-5294

SENR4130

Electric Starting Motor:

6V-0890

SENR3860

CAT Monitoring System:

SENR1394

Transmission Control System:

RENR6008

O

O

N

N

M

M

L

L

K

K

J

J

I

I

H

H

G

G

F

F

E

E

D

D

C

C

B

B

A

A

Product Link ECM:

RENR5885

15

14

13

12

11

Wire Gauge Wire Color

1

Related Electrical Service Manuals Alternator:

Harness identification code: This example indicates wire group 325, wire 135 in harness "AG".

Printed in U.S.A.

Contact Position

114-5333

175-3244

Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)

AG-C4 111-7898

Off Machine Switch Specification

Condition

E015

Timing Cal Probe

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.

¹ At room temperature unless otherwise noted.

Event Codes ADEM III ECM

Harness and Wire Symbols Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes (see sample).

Connector Location

11

Fuel Level

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. Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is activated by electricity and held latched 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.

15

Abnormal update.

Sender:

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.

AXG1-UP

© 2012 Caterpillar, All Rights Reserved

Abnormal rate of change.

157-8858

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

Volume 1 of 2: Chassis Wiring

9

Varible Speed Fan

980G Series II Wheel Loader - Underground Mining Electrical System

325-AG135 PK-14

10

¹The FMI is a diagnostic code that indicates what type of failure has occurred.

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.

Part Number: for Connector Plug

CONN 7

Component Description

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

Plug

506

LIFT POSITION SENSOR

Ground (Wired): This indicates that the component is connected to a grounded wire. The grounded wire is fastened to the machine.

2

507

Lighting Circuits

Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.). No circle indicates that the wire cannot be disconnected from the component.

Machine Location

0006

Throttle Sensor

Circuit Breaker Symbol

Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it.

0001

ECM 8V DC Supply

Flow Symbol

Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it.

123

0041

Level Symbol

Symbols and Definitions

114

0091

Temperature Symbol

10

9

8

7

6

5

4

3

2

1

(Dimensions: 39 inches x 28 inches)

101

Description

30 Page,

Wire Color

Symbols

RENR9858-02 VOL 1 of 2

Wire Number

Harness And Wire Electrical Schematic Symbols

RENR9858-02 August 2012


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Cat 980G Series II Wheel Loader - Underground Mining Electrical System Schematic Manual Vol 1& 2 - by www.heydownloads.com - Issuu