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Service
Manual
JS330
from machine no. 712501
JS450
from machine no. 714501
JS460/500
from machine no. 714550
JS460/500
machine no. 2410051 - 2410300
PUBLISHED BY THE
TECHNICAL PUBLICATIONS DEPARTMENT
OF JCB SERVICE: ©
WORLD PARTS CENTREkjb.kjb.kjb
UTTOXETER, STAFFORDSHIRE, ST14 7BS,
ENGLAND
Tel. ROCESTER (01889) 590312
PRINTED IN ENGLAND
Publication No. 9803/6420
Issue 4
General Information
Care & Safety
Routine Maintenance
R
Attachments
Body & Framework
Electrics
Hydraulics
Transmission
Brakes
Track & Running Gear
Engine
1
2
3
A
B
C
E
F
G
J
K

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Table of Contents
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Summarization of Contents

General Information
Bolt and Nut Torque Specifications
Details torque specifications for various bolts and nuts used on the machine.
Torque Settings by Bolt Grade
Provides torque values for different bolt sizes and strength grades.
Routine Maintenance
Greasing Procedures
Instructions for lubricating slew ring bearing and teeth.
Battery Maintenance
Instructions for checking battery electrolyte level and connections.
Hydraulic System Maintenance
Procedures for releasing hydraulic tank pressure and air bleeding.
Transmission Maintenance
Steps for checking and changing track and slew gearbox oil.
Track and Running Gear Maintenance
Procedures for cleaning tracks and adjusting track tension.

Table of Contents