Hitachi Ex2500 Excavator Technical Workshop Manual
FILE DETAILS:
Hitachi Ex2500 Excavator Technical Workshop Manual
Language : English
Pages : 576
Downloadable : YES
Format : PDF
Size : 11.4 MB
DESCRIPTION:
Hitachi Ex2500 Excavator Technical Workshop Manual
FOLLOW SAFETY INSTRUCTIONS:
• Carefully read and follow all safety signs on themachine and all safety messages in this manual.
• Safety signs should be installed, maintained and replaced when necessary.
• If a safety sign or operator’s manual is damaged or missing, replace it with new one.
• Learn how to operate the machine and its controls correctly and safely.
• Allow only trained, qualified, authorized personnel to operate the machine.
• Keep your machine in proper working condition.
• Unauthorized modifications of the machine may impair its function and/or safety and affect machine life.
• The safety messages in this SAFETY chapter are intended to illustrate basic safety procedures of machines. However it is impossible for these safety messages to cover every hazardous situation you
may encounter. If you have any questions, you should first consult your supervisor and/or your authorized dealer before operating or performing maintenance work on the machine.
TABLE OF CONTENTS:
Hitachi Ex2500 Excavator Technical Workshop Manual
SECTION 1
GENERAL IMFORMATION
Group 1 Precautions for Disassembly
and Assembly
Precautions for Disassembly and
Assembly W1-1-1
Group 2 Tightening
Tightening Torque Specification W1-2-1
Torque Chart W1-2-2
Piping Joint W1-2-5
SECTION 2
UPPERSTRUCTURE
Group 1 Cab
Windowpane Dimensions W2-1-1
Group 2 Pump Device
Remove and Install
Pump Device W2-2-1
Pump Device Line ConnectionW2-2-3
Disassemble Main PumpW2-2-4
Assemble Main PumpW2-2-10
Maintenance StandardsW2-2-13
Disassemble Regulator W2-2-14
Assemble Regulator W2-2-20
Disassemble and Assemble
4-Unit Pump W2-2-27
Disassemble Fan Drive Pump W2-2-28
Assemble Fan Drive Pump W2-2-32
Maintenance StandardsW2-2-34
Disassemble Regulator W2-2-36
Assemble Regulator W2-2-40
Disassemble and Assemble Compressor
Drive Pump ⋅ Pilot PumpW2-2-42
Disassemble and Assemble Transmission
Oil Cooling PumpW2-2-44
Group 3 Control Valve
Remove and Install
Control Valve W2-3-1
Pilot Line Port Location W2-3-3
Main Hydraulic Line Port Location W2-3-4
Disassemble and Assemble
Control Valve W2-3-5
Group 4 Swing Device
Remove and Install Swing DeviceW2-4-1
Disassemble Swing DeviceW2-4-2
Assemble Swing Device W2-4-6
Disassemble Swing Motor W2-4-12
Assemble Swing Motor W2-4-14
Maintenance StandardW2-4-16
Disassemble and Assemble
Relief Block W2-4-17
Group 5 Pilot Valve
Remove and Install Front/Swing
Pilot ValveW2-5-1
Remove and Install Travel and Bucket
Open/Close Pilot Valves W2-5-3
Pilot Valve Ports W2-5-5
Disassemble and Assemble
Pilot ValveW2-5-6
Group 6 Pilot Shut-Off Valve
Remove and Install
Shut-Off Valve W2-6-1
Disassemble Pilot Shut-Off Valve W2-6-2
Assemble Pilot Shut-Off Valve W2-6-4
SECTION 3
UNDERCARRIAGE
Group 1 Travel Device
Remove and Install
Travel Device W3-1-1
Disassemble Travel
Reduction Gear W3-1-4
Assemble Travel
Reduction Gear W3-1-8
Disassemble Travel Motor W3-1-12
Assemble Travel Motor W3-1-16
Disassemble and Assemble
Travel Speed Mode Shift Valve W3-1-20
Maintenance Standard W3-1-22
Remove and Install
Travel Brake Valve W3-1-24
Disassemble and Assemble
Travel Brake Valve W3-1-25
Group 2 Drive Tumbler
Remove and Install
Drive Tumbler W3-2-1
Disassemble Drive Tumbler W3-2-2
Assemble Drive Tumbler W3-2-4
Maintenance Standards W3-2-8
Group 3 Center Joint
Remove and Install Center Joint W3-3-1
Disassemble and Assemble
Center Joint W3-3-4
Group 4 Adjuster Cylinder
Remove and Install
Adjuster Cylinder W3-4-1
Disassemble Adjuster Cylinder W3-4-2
Assemble Adjuster Cylinder W3-4-4
Group 5 Front Idler
Remove and Install
Front Idler W3-5-1
Disassemble and Assemble
Front Idler W3-5-4
Maintenance Standards W3-5-6
Group 6 Upper/Lower Rollers
Remove and Install
Upper/Lower Rollers W3-6-1
Disassemble and Assemble
Upper Roller W3-6-2
Disassemble and Assemble
Lower Roller W3-6-4
Maintenance Standards W3-6-6
Group 7 Track Shoes
Disassemble and Assemble
Track Shoes W3-7-1
Maintenance Standards W3-7-2
Group 8 Accumulator
Remove and Install Accumulator W3-8-1
Disassemble Accumulator W3-8-4
Assemble Accumulator W3-8-6
Maintenance W3-8-10
Group 9 Welding Repair Procedure
Welding Repair Procedures W3-9-1
Welding Rod Specifications W3-9-2
SECTION 4
FRONT ATTACHMENT
Group 1 Cylinder
Remove and install
Cylinders and Preparation W4-1-1
Disassemble and Assemble
Cylinders W4-1-22
Air Bleeding ProcedureW4-1-36
Maintenance Standard W4-1-37
Group 2 Bushing and Point
Remove and Install Bushings W4-2-1
Maintenance StandardsW4-2-2
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