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Copyright © 2004 JCB SERVICE. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any other means, 

electronic, mechanical, photocopying or otherwise, without prior permission from JCB SERVICE.

World Class

Customer Support

9813/3750-01

Publication No.

Issued by JCB Technical Publications, JCB Aftermarket Training, Woodseat, Rocester, Staffordshire, ST14 5BW, England. Tel +44 1889 591300 Fax +44 1889 591400

Service Manual

JS Auto Range - Tracked Excavators 

JS85 

Section 1 - General Information

Section 2 - Operator’s Manual

Section B - Body and Framework

Section C - Electrics

Section E - Hydraulics

Section F - Transmission

Section J - Track & Running Gear

Section K - Engine

Summary of Contents for JS Series

Page 1: ...CE World Class Customer Support 9813 3750 01 Publication No Issued by JCB Technical Publications JCB Aftermarket Training Woodseat Rocester Staffordshire ST14 5BW England Tel 44 1889 591300 Fax 44 188...

Page 2: ...Customer Support 9813 3750 01 Publication No Issued by JCB Technical Publications JCB Aftermarket Training Woodseat Rocester Staffordshire ST14 5BW England Tel 44 1889 591300 Fax 44 1889 591400 Sectio...

Page 3: ...Section 1 General Information 1 0 1 0 9813 3750 01 Notes...

Page 4: ...ses 1 16 Battery Disconnection Connection 1 17 Removing and Replacing Components 1 18 Preparation 1 18 Original Components 1 18 New Components 1 18 Torques and Fixings 1 18 Battery Charging System Pre...

Page 5: ...k 1 36 Electrics 1 40 Hydraulics 1 41 Special Tool for removal of the Brake Piston 1 46 Hydraulics 1 47 Hydraulic Rams Dismantling and Assembly 1 47 Boom Cylinder parts break down 1 48 Arm Cylinder pa...

Page 6: ...Information 1 1 1 1 9813 3750 01 Introduction Identifying Your Machine For information about identifying your machine and its main components refer to Section 2 About the Machine Machine and Componen...

Page 7: ...Section 1 General Information Introduction Identifying Your Machine 1 2 1 2 9813 3750 01 Page left intentionally blank...

Page 8: ...Notice For an explanation of the safety notice signal words refer to Section 2 Introduction Safety For general safety notices refer to Section 2 Introduction Safety For maintenance safety notices refe...

Page 9: ...Section 1 General Information Safety Introduction 1 4 1 4 9813 3750 01 Page left intentionally blank...

Page 10: ...Use Introduction This topic contains information about the structure of the manual and how to use the manual Scope 1 6 Personnel 1 6 Applications 1 6 Newest Data 1 6 Format 1 7 Left Side Right Side 1...

Page 11: ...rocedures and general techniques associated with the maintenance and repair of hydraulic earthmoving equipment Finally please remember above all else SAFETY MUST COME FIRST Applications This manual co...

Page 12: ...e components and controls Refer also to the safety and daily weekly maintenance information The remaining sections are alphabetically coded and deal with dismantling overhaul etc of specific component...

Page 13: ...General Information Use Left Side Right Side 1 8 1 8 9813 3750 01 Left Side Right Side In this manual left A and right B mean your left and right when you are seated correctly in the machine T017280...

Page 14: ...of a service Depending on application this may be anything between neutral circuit pressure and LSRV operating pressure Pink Pressure Pressure that is above neutral circuit pressure but lower than tha...

Page 15: ...Section 1 General Information Use Hydraulic Schematic Codes 1 10 1 10 9813 3750 01 Page left intentionally blank...

Page 16: ...ntenance tasks listed on the maintenance schedules Refer to Section 2 Maintenance Schedules The procedures for the daily and weekly 10 and 50 hour tasks are given in Section 2 Maintenance The procedur...

Page 17: ...Section 1 General Information Routine Maintenance Maintenance Schedules 1 12 1 12 9813 3750 01 Page left intentionally blank...

Page 18: ...rocedures are parking the machine and making it safe and venting hydraulic pressure These procedures are given here as an alternative to again and again in the manual Where applicable you will see a c...

Page 19: ...neral Procedures Parking the Machine and Making it Safe 1 14 1 14 9813 3750 01 Parking the Machine and Making it Safe For the correct procedures to park and make the machine safe refer to Section 2 Ma...

Page 20: ...essure Hydraulic fluid at system pressure can injure you Before disconnecting or connecting hydraulic hoses or couplings vent the pressure trapped in the hoses in accordance with the instructions give...

Page 21: ...c Pressure Hydraulic fluid at system pressure can injure you Before disconnecting or connecting hydraulic hoses or couplings vent the pressure trapped in the hoses in accordance with the instructions...

Page 22: ...n General Procedures Battery Disconnection Connection 1 17 1 17 9813 3750 01 Battery Disconnection Connection For the correct procedures to disconnect connect the battery refer to Section 2 Maintenanc...

Page 23: ...new components are installed Do not substitute components from another machine Components may look the same but may not be interchangeable Refer to the JCB parts systems Torques and Fixings When repl...

Page 24: ...any part of the charging circuit whilst the engine is running Disregarding this instruction will result in damage to the regulator or rectifying diodes Main output cables are live even when the engine...

Page 25: ...f nitrogen gas with a suitable pressure reducing valve 3 Correct gas bottle adaptor depending on territory Charging kit 892 00239 Refer to Section 1 Operating charge pressures accumulators are charged...

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