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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
Related Manuals for jcb JS450
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 Grade
Provides torque settings for different bolt sizes and strength grades.
Service Tools
Lists essential service tools required for maintenance tasks.
Routine Maintenance
Greasing Procedures
Steps for greasing the slew ring bearing and teeth.
Battery Maintenance
Guide on checking battery electrolyte levels and connections.
Hydraulic System Maintenance
Procedures for releasing tank pressure, air bleeding, and checking fluid levels.
Transmission Maintenance
Procedures for checking and changing oil in track and slew gearboxes.
Track and Running Gear Maintenance
Instructions for cleaning tracks and adjusting track tension.
Hydraulics
Releasing Tank Pressure
Steps to safely release hydraulic tank pressure before maintenance.
Air Bleeding Procedures
Procedures for bleeding air from hydraulic pumps, rams, and motors.
Checking and Topping Up Fluid Level
Guide on checking and adding hydraulic fluid to the system.
Changing Hydraulic Oil and Filters
Detailed process for draining, refilling, and replacing hydraulic filters.
Transmission
Track Gearbox Oil Maintenance
Procedures for checking and changing track gearbox oil.
Slew Gearbox Oil Maintenance
Procedures for checking and changing slew gearbox oil.
Track & Running Gear
Cleaning the Tracks
Instructions on how to clean the machine tracks by rotating them.
Track Tension Adjustment
Guide on checking and adjusting the track tension.
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