Hitachi ZX22U-2 Excavator W1MW-E-00 (Preview)
ZX22U-2_W1MW-E-00
INTRODUCTION
SAFETY
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
Group 1 Precautions for Disassembling and Assembling
Precautions for Disassembling and Assembling
Group 2 Tightening
Tightening Torque Specifications
Tightening Chart
Piping Joint
Periodic Replacement of Parts
Group 3 Painting
Painting
Group 4 Bleeding Air
Bleed Air from Hydraulic Oil Tank
Group 5 Floor Tilt Mechanism
Procedure for Floor Tilt Mechanism
SECTION 2 UPPERSTRUCTURE
Group 1 Canopy
Removal and Installation of Canopy
Group 2 Counterweight
Removal and Installation of Counterweight
Group 3 Main Frame
Removal and Installation of Main Frame
Group 4 Pump Device
Removal and Installation of Pump Device
Disassembly of Pump Device
Assembly of Pump Device
Maintenance Standard
Group 5 Control Valve
Removal and Installation of Control Valve
Disassembly and Assembly of Control Valve
Disassembly of Body
Assembly of Body
Disassembly of Spool
Assembly of Spool
Disassembly and Assembly of Check Valve
Group 6 Swing Device
Removal and Installation of Swing Device
Disassembly of Swing Device
Assembly of Swing Device
Disassembly of Swing Motor
Assembly of Swing Motor
Mentenance Standard
Group 7 Pilot Valve
Removal and Installation of Left Pilot Valve
RemovAL and Installation of Right Pilot Valve
Removal and Installation of Travel Pilot Valve
Removal and Installation of Blade Pilot Valve
Removal and Installation of Boom Swing and Auxiliary Pilot Valves
Disassembly of Left and Right Pilot Valves
Assembly of Left and Right Pilot Valves
Disassembly of Travel Pilot Valve
Assembly of Travel Pilot Valve
Disassembly of Pilot Valves for Boom Swing, Blade and Auxiliary
Assembly of Pilot Valves for Boom Swing, Blade and Auxiliary
Group 8 Solenoid Valve
Removal and Installation of Solenoid Valve
Disassembly of 2-Spool Solenoid Valve
Assembly of 2-Spool Solenoid Valve
SECTION 3 UNDERCARRIAGE
Group 1 Swing Bearing
Removal and installation of Swing Bearing
Group 2 Travel Device
Removal and Installation of Travel Device
Disassembly of Travel Device
Assembly of Travel Device
Disassembly of Travel Motor
Assembly of Travel Motor
Disassembly of Brake Valve
Assembly of Brake Valve
Maintenance Standard
Group 3 Center Joint
Removal and Installation of Center Joint
Disassembly of Center Joint
Assembly of Center Joint
Group 4 Track Adjuster
Removal and Installation of Track Adjuster
Disassembly of Track Adjuster
Assembly of Track Adjuster
Group 5 Front Idler
Removal and Installation of Front Idler
Disassembly and Assembly of Front Idler
Maintenance Standard
Group 6 Upper and Lower Roller
Removal and Installation of Lower Roller
Structure of Lower Roller
Maintenance Standard
Group 7 Track
Removal and Installation of Track
Maintenance Standard
SECTION 4 FRONT ATTACHMENT
Group 1 Front Attachment
Removal and Installation of Front Attachment
Maintenance Standard
Standard Dimensions for Arm and Bucket Connection
Group 2 Cylinder
Removal and Installation of Cylinder
Disassembly of Boom and Arm Cylinders
Disassembly of Bucket, Blade and Boom Swing Cylinders
Assembly of Boom and Arm Cylinders
Assembly of Bucket, Blade and Boom Swing Cylinders
Maintenance Standard
SECTION 5 ENGINE
Introduction
Yanmar Warranties
Yanmar Limited Warranty
Emission System Warranty
Yanmar Co., Ltd. Limited Emission Control System Warranty – USA Only
Safety
Safety Statements
Safety Precautions
General Service Information
Component Identification
Location of Labels
EPA / ARB Emission Control Regulations – USA Only
Emission Control Labels
The 97/68/EC Directive Certified Engines
Engine Family
Function of Major Engine Components
Function of Cooling System Components
Diesel Fuel
Engine Oil
Engine Coolant
Specifications
Principal Engine Specifications
Engine Service Information
Tightening Torques for Standard Bolts and Nuts
Abbreviations and Symbols
Unit Conversions
Periodic Maintenance
Introduction
Precautions
Periodic Maintenance Schedule
Periodic Maintenance Procedures
Engine
Before You Begin Servicing
Introduction
Cylinder Head Specifications
Camshaft and Timing Gear TrainSpecifications
Crankshaft and Pistons Specifications
Cylinder Block Specifications
Special Torque Chart
Special Service Tools
Measuring Instruments
Cylinder Head
Cylinder Block
Fuel System
Before You Begin Servicing
Introduction
Fuel System Specifications
Special Service Tools
Measuring Instruments
Fuel System Diagram
Fuel System Components
Fuel Injection Lines
Fuel Injection Pump
Checking and Adjusting Fuel Injection Timing
Fuel Injectors
Disassembly and Inspection of Fuel Injectors
Adjusting Fuel Injector Pressure
Reassembly of Fuel Injectors
Installation of the Fuel Injectors
Cooling System
Before You Begin Servicing
Introduction
Cooling System Diagram
Engine Coolant Pump Components
Engine Coolant System Check
Engine Coolant Pump
Lubrication System
Before You Begin Servicing
Introduction
Oil Pump Service Information
Lubrication System Diagram
Checking Engine Oil Pressure
Trochoid Oil Pump
Starter Motor
Before You Begin Servicing
Introduction
Starter Motor Information
Starter Motor Specifications
Starter Motor Troubleshooting
Starter Motor Components
Starter Motor
Alternator
Before You Begin Servicing
Introduction
Standard and Optional Dynamo Information
Standard and Optional Alternator Information
Alternator Specifications
Dynamo Specifications
Alternator Troubleshooting
Alternator Components
Alternator Wiring Diagram
Alternator Standard Output
Alternator
Dynamo Component Location
Dynamo Wiring Diagram
Operation of Dynamo
Dynamo Standard Output
Testing of Dynamo
Dynamo
Electric Wiring
Electric Wiring Precautions
Electric Wire Resistance
Battery Cable Resistance
Electrical Wire Sizes – Voltage Drop
Conversion of AWG to European Standards
Troubleshooting
Special Service Tools
Troubleshooting By Measuring Compression Pressure
Quick Reference Table For Troubleshooting
Troubleshooting Charts
Electric Wiring
SERVICE MANUAL REVISION REQUEST FORM
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