cat 924H 924HZ 928HZ and 930H Wheel Loader Electrical System Schematic Manual - PDF DOWNLOAD

Page 1

KENR9535-04 November 2012 CONN TO FWD HORN SW

CONN TO HAZARD LAMP SW CONN TO DUCT HARNESS

CONN TO DIMMER SW

CONN TO DIFFERENTIAL LOCK SW

CONN TO FRONT WIPER SW CONN TO REAR WIPER SW

CONN TO ATCH AUX 12V SOCKET

CONN TO PARK BRAKE SW

CONN TO KEY START SW CONN TO DISPLAY CAMERA OPTION

CONN TO A4 MACHINE ECM CONTROL

CONN TO FNR/DOWN SHIFT SW CONN TO EH 3RD FUNCTION HANDLE

924H, 924HZ, 928HZ, and 930H Wheel Loader Electrical System 924H: HXC836-UP JTM790-UP RRS1-UP

924HZ: RCB1-UP PED566-UP JRL1-UP JZZ1-UP

CONN TO 5TH/6TH FUNCTION HARNESS

928HZ: BYD385-UP CXK431-UP

930H: DHC967-UP FTD996-UP

CONN TO ATCH AIR SEAT CONN TO PILOT VALVE CONN TO FRONT WIPER MOTOR CONN TO 3RD FUNCTION VARIABLE FLOW SW CONN TO ATCH HEATED SEAT CONN TO SERVICE CONNECTOR CONN TO SERVICE BRAKE SW CONN TO ATCH SCM TACHOGRAPH HARNESS

CONN TO FRONT FRAME HARNESS CONN TO FRONT FRAME HARNESS

CONN TO CAB SHELL HARNESS CONN TO PRODUCT LINK JUMPER HARNESS CONN TO MAIN CAB HARNESS CONN TO XMSN HARNESS CONN TO SECONDARY STEERING SW CONN TO ENGINE HARNESS

CONN TO MAIN CAB HARNESS CONN TO DUAL MODE STEERING SW

CONN TO CIGAR LIGHTER

CONN TO REAR HARNESS

CONN TO 3RD FUNCTION RETRACT SOL

CONN TO CAB GROUND STUD

CONN TO 3RD FUNCTION EXTEND SOL

CONN TO ENGINE HARNESS

PLATFORM HARNESS (C) COMPONENTS & CONNECTORS

FRONT DASH HARNESS (H) COMPONENTS & CONNECTORS

Component Identifiers (CID¹) Module Identifier (MID²) Engine Control System (MID No. 036) CID

Component

0001

Cylinder #1 Injector

0002

Cylinder #2 Injector

0003

Cylinder #3 Injector

0004

Cylinder #4 Injector

0005

Cylinder #5 Injector

0006

Cylinder #6 Injector

0041

8 Volt DC Supply Voltage

0091

Throttle Position Sensor

0100

Engine Oil Pressure Sensor

0110

Engine Coolant Temperature Sensor

0168

Electrical System Voltage

0172

Intake Manifold Air Temperature Sensor

0190

Engine Speed Sensor

0247

SAE J1939 Data Link

0253

Personality Module

0261

Engine Timing

0262

5 Volt Sensor DC Power Supply

0267

Remote Shutdown Switch

0268

Programmed Parameter Fault

0342

Secondary Engine Speed Sensor

0526

Turbo Wastegate Drive

0549

Throttle Lock Mode Switch

1627

Fuel Pump Relay

1639

Machine Security System

1779

Fuel Rail #1 Pressure Valve Solenoid

1785

Intake Manifold Pressure Sensor

1797

Fuel Rail Pressure Sensor

2417

Ether Control Solenoid

2770

Throttle Lock Resume/Decel Switch

2771

Throttle Lock Set/Decel Switch

2246

Glow Plug Start Aid Relay

Electronic Transmission Control System (MID No. 081) CID

Component

Component Alarm - Action

Machine Location

F-1

A

Supperessor - Front Flood

Component

Block - Fuse

E-12

C

Supperessor - Japan Beacon

Control - Flasher

G-12

C

Supperessor - Roading

Control - Instrument Cluster

G-1

A

Control - Machine

D-3

Schematic Location

Machine Location

D-11

B

G-7

A

E-11

B

Switch - Auto/Manual

F-7

A

4

Switch - Beacon

E-7

A B

Converter - 12/24 DC

H-12

C

Switch - Blower

C-9

Ground - Cab

A-15

6

Switch - Bucket/Fork Select

F-9

B

Ground - Shell

G-14

6

Switch - Continuous Worktool

H-9

B

Handle - FNR Integ 3rd Function

A-9

B

Switch - Differential Lock

H-3

13

Handle - Remote FNR

A-7

A

Switch - Dimmer

D-7

A

Handle - Single Axis Lever w/Downshift

C-8

A

Switch - Dual Mode Steering

E-5

A

Handle - Steering Column Shifter

H-1

A

Switch - Forward Horn

F-1

A

Indicator - Differential Lock

C-7

A

Switch - Front Wiper

G-5

A

Jumper - FNR

H-2

A

Switch - Hazard

E-7

A

Motor - Blower

I-12

5

Switch - Heater

D-8

B

Motor - Front Wiper

G-7

A

Switch - Heater A/C

D-9

B

Motor - Rear Wiper

G-15

7

Switch - Implement Disable

I-9

B

Relay - Backup Lamp

C-12

C

Switch - Japan Beacon

E-8

A

Relay - Brake Lamp

C-13

C

Switch - Key Start

F-1

A

Relay - Defroster

G-12

C

Switch - Kick Out

F-9

B

Relay - Front Flood

G-12

C

Switch - Parking Brake

H-13

9

Relay - Main Power

H-12

C

Switch - Quick Coupler

G-9

B

Relay - Reversing Fan

C-12

C

Switch - Quick Coupler Wedge

G-9

B

Relay - Ride Control

C-12

C

Switch - Rear Defrost

F-9

B

Relay - Secondary Steering Enable

C-12

C

Switch - Rear Intermittent Wiper

G-6

A

Resistor - CAN1

F-1

A

Switch - Rear Wiper

F-5

A

Resistor - Cigar Lighter

F-5

A

Switch - Reversing Fan

E-9

B

Resistor - HVAC

I-12

5

Switch - Ride Control

E-9

B

I-1

10

Switch - Roading

D-7

A

Resistor - LH Heated Mirror

G-15

7

Switch - Secondary Steering

F-5

A

Resistor - RH Heated Mirror

I-1

11

Switch - Service Brake

C-7

A

Sensor - 3rd Function Max Flow

B-8

12

Switch - Thermostat

I-11

5

Sensor - Throttle Position

G-3

8

Switch - Throttle Lock Enable

H-9

B

Resistor - Rear Defroster

Sensor - XMSN Neutralizer

H-3

8

Switch - Throttle Lock Set

H-9

B

Socket - Auxiliary 12V

H-13

9

Switch - Turn Signal

E-1

A

Solenoid - 3rd Function Extend

C-8

12

Switch - Worklamp

D-7

A

Solenoid - 3rd Function Retract

B-8

12

Switch - XMSN Neutralizer/Override

F-7

A

8 Volt DC Supply

Solenoid - Dual Mode Steering

F-3

4

Valve Gp - Pilot

B-8

B

0070

Parking Brake Switch

Solenoid - Pilot Shutoff

A-8

B

Valve Gp - Pilot Auxilary Detent

B-7

B

0096

Fuel Level Sensor

Supperessor - Differential Lock

E-3

4

0177

Transmission Oil Temperature

Machine locations are repeated for components located close together.

0247

SAE J1939 Data Link

A = Located inside of front dash.

0262

5 Volt Sensor DC Power Supply

B = Located inside of right console.

0271

Action Alarm

C = Located around of fuse block.

0291

Engine Cooling Fan Solenoid

0367

Ride Control Switch

0368

Transmission Auto/Manual Switch

0426

Rear Brake Oil Pressure Sensor

0444

Starter Motor Relay

0473

Brake Charge Pressure Sensor

0486

Engine Fan Reverse Switch

0490

Implement Lockout Switch

0585

Transmission Output Speed

0590

Engine Control Module

0600

Hydraulic Oil Temperature Sensor

0629

Neutralizer Switch

0637

Backup Alarm

0668

Shift Lever Input

0672

Torque Converter

0673

Transmission Output Speed

0674

Transmission Intermediate Speed

0675

Transmission Intermediate Speed

0793

Primary Steering Pressure Switch

0420

Secondary Steering Intermediate Relay

0811

Gauge Cluste

0826

Torque Converter Oil Temperature Sensor

0882

Implement Lockout Solenoid

1231

Brake Oil Diverter Solenoid

1251

Alternator "R" Terminal Signal

Connector Number

Machine Location

Transmission Solenoid #3

CONN 2

B-15

1

1404

Transmission Solenoid #4

CONN 3

B-15

1

1405

Transmission Solenoid #5

CONN 4

C-15

1

1406

Transmission Solenoid #6

CONN 5

D-15

1

CONN 6

H-15

2

CONN 7

H-14

3

CONN 8

G-14

2

CONN 9

F-13

4

CONN 10

G-13

4

CONN 11

G-13

4

CONN 12

G-13

4

CONN 13

I-13

5

Data valid but below normal operational range. Data erratic, intermittent, or incorrect.

3

Voltage above normal or shorted high.

4

Voltage below normal or shorted low.

5

Current below normal or open circuit.

6

Current above normal or grounded circuit.

7

Mechanical system not responding properly.

8

Abnormal frequency, pulse width, or period.

9

Abnormal update.

10

Abnormal rate of change.

11

Failure mode not identifiable.

12

Bad device or component.

13

Out of calibration.

14

Parameter failures.

15

Parameter failures.

16

Parameter not available.

17

Module not responding.

18

Sensor supply fault.

19

Condition not met.

20

Parameter failures.

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

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

10

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

13 9

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

7

A

2

4

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

3

5 1

B

C

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.

8 6

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.

12

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.

11

Harness and Wire Symbols

3

Schematic Location

1403

2

Circuit Breaker Symbol

Flow Symbol

Symbols and Definitions

Connector Location

1

1

Level Symbol

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

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 9X-1123

Fuse (5 Amps)

Component Part Number

325-AG135 PK-14

A-15

Failure Description

Temperature Symbol

Plug

CONN 1

Data valid but above normal operational range.

T

Pressure Symbol

2

Transmission Solenoid #2

0

Symbols

Part Number: for Connector Plug

Transmission Solenoid #1

FMI No.

Harness And Wire Electrical Schematic Symbols

AG-C4 111-7898

1402

Failure Mode Identifiers (FMI)¹

Printed in U.S.A.

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

1401

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

© 2012 Caterpillar, All Rights Reserved

Component Location Schematic Location

0041

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

Volume 1 of 2: Cab

CONN 14

A-9

A

CONN 15

C-9

C

CONN 16

C-5

A

CONN 17

C-5

A

CONN 18

D-5

A

CONN 19

D-5

A

CONN 20

A-3

4

CONN 21

F-3

6

CONN 22

G-3

6

CONN 23 Service Connector CONN 50

B-9 B-9

B C

2

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

Wire Gauge Wire Color

11 10 Volume 1 - Resistor and Solenoid Specifications Part No.

A 7

B C

4 1

13

9G-1950

Component Description

Resistance (Ohms)¹ Overall: 2 ± 0.1 Between Taps: 1 ± 0.05

Resistor:

HVAC

134-2540

Resistor:

CAN1 Data Link

120 ± 12

225-0300

Solenoid:

Pilot Valve Shutoff

38.12 ± 1.9

235-4605

Solenoid:

3rd Function Extract, 3rd Function Retract

247-4503

Solenoid:

Dual Mode Steering

5 ± .3 33.8 ± 0.5

¹ At room temperature unless otherwise noted.

9

5 12

6

8

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.

Volume 1 - Off Machine Switch Specification Part No.

* ILLUSTRATION SHOWN USING V-LINK ARRANGMENT

MACHINE COMPONENTS & CONNECTORS LOCATIONS

3E-5464

Function Refrigerent Thermostat

Actuate

Deactuate

Contact Position

-1.1 ± 0.8°C (30 ± 33.44°F)

2.2 ± 0.8°C (36 ± 33.44°F)

Normally Closed

36 Page,

CONN TO AUTOSHIFT SW

(Dimensions: 48 inches x 35 inches)

CONN TO INSTR CLUSTER

CONN TO AUDIBLE ALARM

CONN TO WORKLAMP SW

KENR9535-04 VOL 1 of 2

CONN TO BEACON SW CONN TO NEUTRALIZER OVERRIDE SW


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cat 924H 924HZ 928HZ and 930H Wheel Loader Electrical System Schematic Manual - PDF DOWNLOAD by www.heydownloads.com - Issuu