Service
Manual
(Supplement)
532H, 537H
PUBLISHED BY THE
TECHNICAL PUBLICATIONS DEPARTMENT OF
JCB SERVICE; ©
WATERLOO PARK, UTTOXETER,
ST14 5PA, ENGLAND
Tel. 01889 - 590312
PRINTED IN ENGLAND
Publication No. 9803/3641
R
General Information
1
Care & Safety
2
3
Electrics
C
Hydraulics
E
Transmission
F
Brakes
G
Steering
H
Engine
K
Routine Maintenance
i
Overall Contents
9803/3641
i
Issue 2*
Section 1 General Information
Introduction
Care and Safety 1 - 1
Service Tools 1 - 2
Section 2 Care and Safety
Operating Safety 1 - 1
Maintenance Safety 1 - 1
Section 3 Routine Maintenance
Introduction
Fluids, Lubricants, Capacities and Specifications 1 - 1
Service Schedules 2 - 1
Towing a Machine 4 - 1
Checking the Drop Box Oil Level 5 - 1
Changing the Transmission Charge Filter 6 - 1
Testing the Parking Brake 7 - 1
Section C Electrics
Introduction 1 - 1
Fuses and relays
Fuse Identification 1 - 2
Relay Identification 1 - 3
Transmission Controller
Diagnostic LED’s 2 - 1
Schematic Diagrams 4 - 1 to 4 - 8
*
*
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Overall Contents
9803/3641
ii
Issue 2*
Section E Hydraulics
Technical Data 1 - 1
Hydraulic Contamination 2 - 1
Fault Finding 3 - 1
Schematic Diagrams and Circuit Descriptions
Schematic Diagrams 4 - 1
Circuit Descriptions
Drive Pump 4 - 5
Drive Motor 4 - 6
Engine/Drive Pump Coupling 5 - 1
Drive Pump
Removal and Replacement 6 - 1
Minor Repairs
Location of Components 6 - 3
Shaft Seal 6 - 4
Multi-Function Valves 6 - 5
Charge Pressure Relief Valve 6 - 5
Coupling Removal and Replacement 6 - 6
Servo Piston Cover Seals Renewal 6 - 7
Control Valve 6 - 8
Speed Sensor Removal and Replacement 6 - 9
Pump Cover 6 - 10
Servo Control Valve 6 - 10
Drive Motor/Drop Box Assembly
Removal and Replacement 7 - 1
Minor Repairs
Location of Components 7 - 3
Shaft Seal 7 - 4
Loop Flushing Valve 7 - 5
Charge Pressure Relief Valve 7 - 5
Multi-Function Block/Pressure Compensator Valve 7 - 6
Fan Pump
Removal and Replacement 8 - 1
Dismantling and Assembly 8 - 2
Fan Motor
Removal and Replacement 9 - 1
Dismantling and Assembly 9 - 2
Main Service Pump
Removal and Replacement 11 - 1
Dismantling and Assembly 11 - 2
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Overall Contents
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Issue 2*
Section E Hydraulics (continued)
Priority Valve
Description and Operation 12 - 1
Removal and Replacement
To Machine Serial Number 775548 12 - 2
Dismantling and Assembly
To Machine Serial Number 775548 12 - 3
Removal and Replacement
From Machine Serial Number 775549 12 - 4
Dismantling and Assembly
From Machine Serial Number 775549 12 - 5
Transmission Oil Cooler Bypass Valve
Removal and Replacement 13 - 1
Start-up procedure 15 - 1
Section F Transmission
Introduction 1 - 1
Technical Data 1 - 1
Description and Operation
Introduction 2 - 1
Drive Circuit 2 - 2
Fan (Charge) Pump and Fan Motor Circuit 2 - 3
Brake Pressure Defeat Valve 2 - 3
Case Drain Circuit 2 - 4
Oil Cooling Circuit 2 - 5
Test Points 2 - 6
Sensors 2 - 7
Drop Box
Removal and Replacement 4 - 1
Dismantling and Assembly 5 - 1
Propshafts
Removal and Replacement 6 - 1
Section G Brakes
Introduction 1 - 1
Technical Data 1 - 1
Parking Brake
Adjustment 2 - 1
Section H Steering
Introduction 1 - 1
Technical Data 1 - 1
iv
Overall Contents
9803/3641
iv
Issue 1
Section K Engine
Introduction 1 - 1
Technical Data 1 - 1
Engine Removal and Replacement 2 - 1
Renewing the Coupling 2 - 5
Drive Flange Replacement 2 - 6
Engine Mounting Bracket And Bushes 2 - 6
Machine Start-up Procedure 2 - 7
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