JCB 8040, 8045, 8050, 8055 Mini Excavators OEM Service & Repair Manual

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 9813/1850-1 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 8040, 8045, 8050, 8055 Section 1 - General Information Section 2 - Care and Safety Section 3 - Maintenance Section A - Attachments Section B - Body and Framework Section C - Electrics Section D - Controls Section E - Hydraulics Section F - Gearboxes Section J - Track and Running Gear Section K - Engine 4

Section 0 - Service Manual 0-0 0-0 9813/1850-1 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 9813/1850-1 Publication No. Issued by JCB Technical Publications, JCB Aftermarket Training, Woodseat, Rocester, Staffordshire, ST14 5BW, England. Tel +44 1889 591300 Fax +44 1889 591400 Section 1 General Information Section 1 - General Information Section 2 - Care and Safety Section 3 - Maintenance Section A - Attachments Section B - Body and Framework Section C - Electrics Section D - Controls Section E - Hydraulics Section F - Gearboxes Section J - Track and Running Gear Section K - Engine

Section 1 - General Information 1-0 1-0 9813/1850-1 Notes:

Section 1 - General Information Contents 1-i 1-i Page No. Contents Introduction About this Manual ...................................................................................... 1-1 Machine Model and Serial Number ....................................................... 1-1 Using the Service Manual ..................................................................... 1-1 Section Numbering ................................................................................ 1-1 Left Side, Right Side .............................................................................. 1-2 Cross References .................................................................................. 1-2 Identifying Your Machine Identification Plates ................................................................................... 1-3 Machine Identification Plate .................................................................. 1-3 Typical Product Identification Number (PIN) ......................................... 1-3 Typical Engine Identification Number .................................................... 1-4 ROPS, TOPS and FOGS ...................................................................... 1-5 Standard Torque Settings Zinc Plated Fasteners and Dacromet Fasteners ....................................... 1-7 Introduction ............................................................................................ 1-7 Bolts and Screws ................................................................................... 1-7 Hydraulic Connections ............................................................................. 1-11 'O' Ring Face Seal System .................................................................. 1-11 'Torque Stop' Hose System ................................................................. 1-14 Service Tools Numerical List .......................................................................................... 1-15 Tool Detail Reference .............................................................................. 1-18 Section B - Frame and Bodywork ........................................................ 1-18 Section C - Electrics ............................................................................ 1-22 Section E - Hydraulics ......................................................................... 1-23 Section K - Engine ............................................................................... 1-28 Service Consumables Sealing and Retaining Compounds ......................................................... 1-29 Terms and Definitions Colour Coding .......................................................................................... 1-31 Hydraulic Schematic Colour Codes ..................................................... 1-31

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

Section 1 - General Information Introduction About this Manual 1-1 1-1 9813/1850-1 Introduction About this Manual Machine Model and Serial Number This manual provides information for the following model(s) in the JCB machine range: 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. JCB 8040ZTS from serial number 1056000. JCB 8045ZTS from serial number 1057000. JCB 8050ZTS from serial number 1741500. JCB 8050RTS from serial number 1741500. JCB 8055ZTS from serial number 2060250. JCB 8055RTS from serial number 2060250. 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 9813/1850-1 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. Fig 1. 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 1-2) . A B

Section 1 - General Information Identifying Your Machine Identification Plates 1-3 1-3 9813/1850-1 Identifying Your Machine Identification Plates Machine Identification Plate Your machine has an identification plate mounted as shown. The Product Identification Number (PIN), weight, engine power, year of manufacture and serial number of the machine are shown on the plate. Note: The machine model and build specification is indicated by the PIN. Refer to Typical Product Identification Number (PIN). If the engine is replaced by a new one, the serial number on the identification plate will be wrong. Either get a replacement identification plate from your JCB Dealer or simply remove the old number. This will prevent the wrong unit number being quoted when replacement parts are ordered. The machine and engine serial numbers can help identify exactly the type of equipment you have. Fig 1. Typical Product Identification Number (PIN) 1 World Manufacturer Identification (3 Digits). JCB = UK Build. 2 Machine Type and Model (5 Digits). 08040 = 8040. 3 Random Check Letter (1 Digit). The Check Letter is used to verify the authenticity of a machine’s PIN. 4 Machine Serial Number (8 Digits). Each machine has a unique serial number. S YEAR OF MANUF. T PIN Prod.Ident. No. ENGINE POWER kW @ RPM E I F VIN Vehicle Ident. No. E R I R M R WEIGHT Kg G E D JCB COMPACT PRODUCTS LIMITED HAREWOOD ESTATE, LEEK ROAD, CHEADLE, STOKE ON TRENT, UNITED KINGDOM, ST10 2JU. 1 2 3 4 JCB 08040 L 01056000

Section 1 - General Information Identifying Your Machine Identification Plates 1-4 1-4 9813/1850-1 Typical Engine Identification Number The engine data label is located on the cylinder block as shown. The data label includes the engine identification number. A typical engine identification number is: 1 Engine Type (2 Digits) 2 Country of Manufacture (1 Digit) U = United Kingdom 3 Build Number (5 Digits) 4 Engine Serial Number (6 Digits) 5 Year of Manufacture (1 Digit) T017650-2 Fig 2. GJ U 65692 500405 P 1 2 3 4 5 GJ = Naturally aspirated, 13.8kW (18.5Hp)

JCB 8040, 8045, 8050, 8055 Mini Excavators OEM Service & Repair Manual

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