Hitachi EX1200-7 Hydraulic Excavator Workshop Manual WKAA90-EN-00 – PDF DOWNLOAD

Description

Hitachi EX1200-7 Hydraulic Excavator Workshop Manual WKAA90-EN-00 – PDF DOWNLOAD

FILE DETAILS:

Hitachi EX1200-7 Hydraulic Excavator Workshop Manual WKAA90-EN-00 – PDF DOWNLOAD

Language :English
Pages :807
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

DESCRIPRION:

Hitachi EX1200-7 Hydraulic Excavator Workshop Manual WKAA90-EN-00 – PDF DOWNLOAD

BACKHOE FRONT SPECIFICATIONS

Service Manual consists of the following separate Part No.
Technical Manual (Operational Principle) : Vol. No.TOKAA90-EN
Technical Manual (Troubleshooting) : Vol. No.TTKAA90-EN
Workshop Manual : Vol. No.WKAA90-EN

INTRODUCTION

To The Reader

This manual is written for an experienced technician to provide PS information needed to maintain and repair this machine. The machine specification and description according to destination may be explained on this manual.  Be sure to thoroughly read this manual for correct product information and service procedures.

 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.

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 EX1200-7 Hydraulic Excavator Workshop Manual WKAA90-EN-00 – PDF DOWNLOAD

BACKHOE FRONT SPECIFICATIONS

Service Manual consists of the following separate Part No.
Technical Manual (Operational Principle) : Vol. No.TOKAA90-EN
Technical Manual (Troubleshooting) : Vol. No.TTKAA90-EN
Workshop Manual : Vol. No.WKAA90-EN

WKAA90-EN-00 1
INTRODUCTION 3
SYMBOL AND ABBREVIATION 5
SAFETY 7
SECTION AND GROUP CONTENTS 49
SECTION 1 GENERAL 53
Group 1 Precautions for Disassembling and Assembling 55
Precautions for Disassembling and Assembling 55
Group 2 Tightening 61
Tightening Bolts and Nuts 61
Piping Joint 64
Group 3 Painting 71
Painting 71
Group 4 Bleeding Air 73
Bleeding Air from Hydraulic Oil Tank 73
Bleeding Air from Hydraulic System 75
Bleeding Air from Fuel System 77
Group 5 Releasing Pressure 79
Releasing Pressure in Hydraulic Circuit 79
Group 6 Preparation 81
Preparation before Inspection and Maintenance 81
SECTION 2 MAINTENANCE STANDARD 87
Group 1 Upperstructure 89
Pump Device 89
Swing Motor 93
Group 2 Undercarriage 97
Travel Device 97
Center Joint 99
Front Idler101
Upper and Lower Roller103
Track105
Group 3 Front Attachment109
Pin and Bushing109
Point113
Cylinder115
SECTION 3 UPPERSTRUCTURE119
Group 1 Cab121
Removal and Installation of Cab121
Dimensions of the Cab Glass151
Group 2 Counterweight155
Removal and Installation of Counterweight155
Group 4 Engine163
Removal and Installation of Air Cleaner163
Group 5 Radiator Assembly175
Removal and Installation of Radiator175
Removal and Installation of Intercooler191
Removal and Installation of Pump Transmission Oil Cooler195
Group 6 Oil Cooler Assembly201
Removal and Installation of Oil Cooler201
Removal and Installation of Fuel Cooler215
Group 7 Hydraulic Oil Tank219
Removal and Installation of Hydraulic Oil Tank219
Group 8 Fuel Tank243
Removal and Installation of Fuel Tank243
Group 9 Pump Device263
Removal and Installation of Pump Device263
Disassembly and Assembly of Pump Transmission287
Disassembly and Assembly of Main Pump295
Disassembly and Assembly of Regulator for Main Pump305
Disassembly and Assembly of Fan Pump311
Disassembly and Assembly of Regulator for Fan Pump325
Structure of Pilot Pump337
Structure of Transmission Lubrication Pump339
Structure of Pump Control Solenoid Valve341
Group 10 Control Valve343
Removal and Installation of Main Control Valve343
Removal and Installation of Swing Control Valve383
Disassembly and Assembly of Housing401
Disassembly of Control Valve 4-Spool Side405
Assembly of Control Valve 4-Spool Side413
Disassembly and Assembly of Control Valve 5-Spool Side421
Disassembly of Swing Control Valve435
Assembly of Swing Control Valve441
Group 11 Swing Device447
Removal and Installation of Swing Device447
Disassembly and Assembly of Swing Device463
Disassembly and Assembly of Swing Motor475
Structure of Swing Parking Brake Valve485
Group 12 Pilot Valve487
Removal and Installation of Pilot Valve (Left)487
Removal and Installation of Pilot Valve (Right)499
Removal and Installation of Travel Pilot Valve515
Disassembly of Pilot Valves (Right and Left)519
Assembly of Pilot Valves (Right and Left)522
Disassembly of Travel Pilot Valve525
Assembly of Travel Pilot Valve529
Group 13 Solenoid Valve535
Removal and Installation of Pilot Shut-Off Solenoid Valve535
Disassembly of Pilot Shut-Off Solenoid Valve539
Assembly of Pilot Shut-Off Solenoid Valve541
Removal and Installation of 4-Spool Solenoid Valve Unit543
Structure of 4-Spool Solenoid Valve Unit549
Removal and Installation of 2-Spool Solenoid Valve Unit551
Structure of 2-Spool Solenoid Valve Unit553
Group 14 Signal Control Valve555
Removal and Installation of Signal Control Valve555
Structure of Signal Control Valve559
Group 15 Muffler563
Removal and Installation of Muffler563
Group 16 Fan Valve577
Removal and Installation of Oil Cooler Fan Valve577
Removal and Installation of Radiator Fan Valve583
Structure of Oil Cooler Fan Valve and Radiator Fan Valve589
Group 17 Fan Motor591
Removal and Installation of Oil Cooler Fan Motor591
Removal and Installation of Radiator Fan Motor619
Disassembly and Assembly of Oil Cooler Fan Motor and Radiator Fan Motor627
SECTION 4 UNDERCARRIAGE637
Group 1 Swing Bearing639
Removal and Installation of Swing Bearing639
Disassembly of Swing Bearing643
Assembly of Swing Bearing645
Group 2 Travel Device647
Removal and Installation of Travel Device647
Disassembly and assembly of Travel Device651
Disassembly and assembly of Travel Motor667
Disassembly and assembly of Brake Valve677
Group 3 Center Joint681
Removal and Installation of Center Joint681
Disassembly of Center Joint689
Assembly of Center Joint691
Replacement of Body and Spindle694
Group 4 Track Adjuster695
Removal and Installation of Track Adjuster695
Disassembly of Track Adjuster697
Assembly of Track Adjuster701
Group 5 Front Idler705
Removal and Installation of Front Idler705
Disassembly of Front Idler707
Assembly Of Front Idler710
Group 6 Upper and Lower Rollers713
Removal and Installation of Upper Roller713
Removal and Installation of Lower Roller717
Disassembly of Lower Roller723
Assembly of Lower Roller725
Group 7 Track727
Removal and Installation of Track727
SECTION 5 FRONT ATTACHMENT737
Group 1 Front Attachment739
Removal and Installation of Boom739
Removal and Installation of Arm747
Removal and Installation of Bucket755
Group 2 Cylinder763
Removal and Installation of Boom Cylinder763
Removal and Installation of Arm Cylinder771
Removal and Installation of Bucket Cylinder779
Disassembly of Cylinder789
Assembly of Cylinder794
Gorup 3 Bushing and Point799
Removal and Installation of Bushing799
SERVICE MANUAL REVISION REQUEST FORM807

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