JCB 8085 Midi Excavator Workshop Service Manual for Repair

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 9803/9990-1 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 JCB 8085 Section 1 - General Information Section 2 - Care & Safety Section 3 - Routine Maintenance Section B - Body & Framework Section C - Electrics Section E - Hydraulics Section F - Transmission Section J - Tracks Section K - Engine

Section 0 - Service Manual 0-0 0-0 9803/9990-1 Notes:

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 9803/9990-2 Publication No. Issued by JCB Technical Publications, JCB Aftermarket Training, Woodseat, Rocester, Staffordshire, ST14 5BW, England. Tel +44 1889 591300 Fax +44 1889 591400 Section 1 General Information Service Manual - JCB 8085 Section 1 - General Information Section 2 - Care & Safety Section 3 - Routine Maintenance Section A - Attachments Section B - Body & Framework Section C - Electrics Section E - Hydraulics Section F - Transmission Section J - Tracks Section K - Engine

Section 1 - Service Manual 1-0 1-0 9803/9990-2 Notes:

Page No. Contents Section 1 - 1 1-i 1-i Introduction About this Manual ...................................................................................... 1-1 Machine Identification Identifying Your Machine ........................................................................... 1-3 Service Tools Numerical List Section B - Body and Framework ...................................... 1-5 Tool Detail Reference Section B - Body and Framework .......................... 1-6 Numerical List Section C - Electrics ........................................................ 1-10 Tool Detail Reference Section C - Electrics ............................................. 1-11 Numerical List Section E- Hydraulics ...................................................... 1-12 Tool Detail Reference Section E- Hydraulics ........................................... 1-15 Torque Settings Zinc Plated Fasteners and Dacromet Fasteners ..................................... 1-19 Hydraulic Connections ............................................................................. 1-23 Service Consumables Sealing and Retaining Compounds ......................................................... 1-27 Terms and Definitions Colour Coding .......................................................................................... 1-29

Page No. Contents Section 1 - 1 1-ii 1-ii

Section 1 - General Information 1-1 1-1 9803/9990-1 Introduction About this Manual Machine Model and Serial Number This manual provides information for the following model(s) in the JCB machine range: JCB 8085 from serial number 1071500. Using the Service Manual T11-004 This publication is designed for the benefit of JCB Distributor Service Engineers who are receiving, or have received, training by JCB Technical Training Department. These personnel should have a sound knowledge of workshop practice, safety procedures, and general techniques associated with the maintenance and repair of hydraulic earthmoving equipment. The illustrations in this publication are for guidance only. Where the machines differ, the text and/or the illustration will specify. General warnings in Section 2 are repeated throughout the manual, as well as specific warnings. Read all safety statements regularly, so you do not forget them. Renewal of oil seals, gaskets, etc., and any component showing obvious signs of wear or damage is expected as a matter of course. It is expected that components will be cleaned and lubricated where appropriate, and that any opened hose or pipe connections will be blanked to prevent excessive loss of hydraulic fluid and ingress of dirt. Where a torque setting is given as a single figure it may be varied by plus or minus 3%. Torque figures indicated are for dry threads, hence for lubricated threads may be reduced by one third. The manufacturer's policy is one of continuous improvement. The right to change the specification of the machine without notice is reserved. No responsibility will be accepted for discrepancies which may occur between specifications of the machine and the descriptions contained in this publication. Finally, please remember above all else safety must come first! Section Numbering T11-005 The manual is compiled in sections, the first three are numbered and contain information as follows: The remaining sections are alphabetically coded and deal with Dismantling, Overhaul etc. of specific components, for example: Section contents, technical data, circuit descriptions, operation descriptions etc. are inserted at the beginning of each alphabetically coded section. Cross References T1-004_2 In this publication, page cross references are made by presenting the subject title printed in bold, italic and underlined. It is preceeded by the 'go to' symbol. The number of the page upon which the subject begins, is indicated within the brackets. For example: K Cross References ( T 1-1) . 1 General Information - includes torque settings and service tools. 2 Care and Safety - includes warnings and cautions pertinent to aspects of workshop procedures etc. 3 Maintenance - includes service schedules and recommended lubricants for all the machine. A Attachments B Body and Framework, etc.

Section 1 - General Information Introduction About this Manual 1-2 1-2 9803/9990-1 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. 731911-3 Fig 1. Cab/Canopy T1-003_2 This manual frequently makes references to the cab. For instance, 'do not operate the machine without a manual in the cab'. It should be noted that these statements also apply to canopy build machines. Cross References T1-004_2 In this publication, page cross references are made by presenting the subject title printed in bold, italic and underlined. It is preceeded by the 'go to' symbol. The number of the page upon which the subject begins, is indicated within the brackets. For example: K Cross References ( T 1-1) .

Section 1 - General Information Machine Identification Identifying Your Machine 1-3 1-3 9803/9990-2 Machine Identification Identifying Your Machine Machine Identification Plate Your machine has an identification plate A attached to the right hand side of the kingpost. Fig 1. Typical Product Identification Number (PIN) 1 World Manufacturer Identification (3 Digits). JCB = UK Build. 2 Machine Type and Model (5 Digits). 08085 = 8085. 3 Check Letter (1 Digit). The Check Letter is used to verify the authenticity of the machine’s PIN. 4 Machine Serial Number (8 Digits). Each machine has a unique serial number. JCB COMPACT PRODUCTS LIMITED HAREWOOD ESTATE, LEEK ROAD, CHEADLE, STOKE ON TRENT, UNITED KINGDOM, ST10 2JU 817/17768 A 1 2 3 4 JCB 08085 L 01071500

Section 1 - General Information Machine Identification Identifying Your Machine 1-4 1-4 9803/9990-2 Component Identification Plates Typical Engine Identification Number If the engine is replaced by a new one, the data plate serial number B will be wrong. Either stamp the new number on the plate or stamp out the old one. This will prevent the wrong number being quoted when you order replacement parts. a Engine Type b Engine Part number c Country of Manufacture d Engine Serial Number e Year of Manufacture T049100 Fig 2. ROPS, TOPS and FOGS ! WARNING Modified and wrongly repaired ROPS, TOPS & FOGS Structures are dangerous. Do not modify the TOPS Structure. Do not attempt to repair the ROPS, TOPS & FOGS Structure. If the ROPS, TOPS & FOGS Structure has been in an accident, do not use the machine until the structure has been inspected and repaired. This must be done by a qualified person. For assistance, contact your JCB dealer. Failure to take precautions could result in death or injury to the operator. 5-3-1-7_2 A bolt on Falling Object Guard Structure (FOGS) is available which also carries a certified label. This label certifies the cab to a FOGS standard. K Fig 3. ( T 1-4) . When a machine is used in an application with the risk of falling objects, the machine must be equipped with an optional FOGS. There are two guard options available depending on the application: – Level 1 (ISO10262). Is intended for protection from small objects for example small rocks, small debris and other small objects found in operations such as highway maintenance, landscaping and other construction site services. – Level 2. Is intended for protection from large objects for example large rocks, large debris and other large objects encountered in operations such as construction and demolition. Fig 3. a b c d e LE 50316 J 000001 Y B

JCB 8085 Midi Excavator Workshop Service Manual for Repair

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