Hitachi ZW 20 Wheel Loader Workshop Manual (W4EJ-E-00)
File Details:
Hitachi ZW 20 Wheel Loader Workshop Manual (W4EJ-E-00)
- Manual Language:English
- Pages: 220
- Size: 7.12 MB
- Format:PDF
- Downloadable:Yes
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Description:
Hitachi ZW 20 Wheel Loader Workshop Manual (W4EJ-E-00)
TO THE READER
• This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine.
• Be sure to thoroughly read this manual for correct product information and service procedures.
• If you have any questions or comments, at if you found any errors regarding the contents of this manual, please contact using “Service Manual Revision Request Form” at the end of this manual.
ADDITIONAL REFERENCES
• Please refer to the other materials (operator’s manual, parts catalog, engine technical material and Hitachi training material etc.) in addition to this manual.
MANUAL COMPOSITION
• This manual consists the Technical Manual and the Workshop Manual.
• Information included in the Technical Manual: technical information needed for redelivery and delivery, operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures.
• Information included in the Workshop Manual: technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal/installation and assemble/ disassemble procedures.
Table Of Contents:
Hitachi ZW 20 Wheel Loader Workshop Manual (W4EJ-E-00)
cover.................................................................... 1 INTRODUCTION............................................................. 3 SAFETY................................................................... 5 SECTION AND GROUP CONTENTS............................................... 37 SECTION 1 GENERAL........................................................ 39 Group 1 Precautions for Disassembling and Assembling................. 41 Disassembly and Assembly......................................... 41 Group 2 Tightening................................................... 49 Tightening Torque................................................ 49 Tightening Bolts and Nuts........................................ 51 Tightening Piping Joint.......................................... 54 Periodic Replacement of Parts.................................... 58 Group 3 Painting..................................................... 61 Painting......................................................... 61 SECTION 2 BODY........................................................... 65 Group 1 Control Valve................................................ 67 Removal and Installation of Control Valve........................ 67 Disassembly of Control Valve..................................... 70 Assembly of Control Valve........................................ 72 Group 2 Main Pump.................................................... 83 Removal and Installation of Main Pump............................ 83 Disassembling.................................................... 87 SECTION 3 TRAVEL SYSTEM.................................................. 93 Group 1 Cab.......................................................... 95 Removal and Installation of Cab.................................. 95 Adjustment of Inching Lever Linkage and Service Brake Linkage.... 98 Bleeding Air from Service Circuit................................100 Adjustment of Accelerator Cable Length...........................102 Group 2 HST Pump.....................................................103 Removal and Installation of HST Pump.............................103 Disassembly and Assembly of HST Pump.............................106 Group 3 HST Motor....................................................111 Removal and Installation of HST Motor............................111 Disassembly and Assembly of HST Motor............................115 Group 4 Reduction Gear...............................................119 Removal and Installation of Reduction Gear.......................119 Disassembly and Assembly of Reduction Gear.......................122 Maintenance Standard.............................................140 Group 5 Axle.........................................................143 Removal and Installation of Axle.................................143 Disassembly and Assembly of Axle.................................150 Maintenance Standard of Differential.............................168 Group 6 Master Cylinder..............................................169 Removal and Installation of Master Cylinder......................169 Disassembly and Assembly of Master Cylinder......................172 Group 7 Power Steering...............................................175 Removal and Installation of Orbitroll............................175 Disassembly and Assembly of Orbitroll............................178 Group 8 Steering Cylinder............................................189 Removal and Installation of Steering Cylinder....................189 Disassembly and Assembly of Steering Cylinder....................192 Maintenance Standard.............................................196 SECTION 4 FRONT ATTACHMENT...............................................199 Group 1 Front Attachment.............................................201 Maintenance Standard.............................................201 Group 2 Cylinder.....................................................203 Removal and Installation of Cylinder.............................203 Removal and Installation of Tilt Cylinder........................204 Disassembly and Assembly of Tilt Cylinder........................206 Remove and Install Lift Cylinder.................................210 Disassembly and Assembly of Lilt Cylinder........................212 Maintenance Standard.............................................216 SERVICE MANUAL REVISION REQUEST FORM.....................................219
Please Note:
⦁ This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
⦁ This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
⦁ Require some other service manual or have any queries: please WRITE to us at [email protected]