Hitachi ZW550-6 Wheel Loader WNHK40-EN-00 (Preview)
WNHK40-EN-00
SECTION 1 GENERAL
Group 1 Precautions for Disassembling and Assembling
Precautions for Disassembling and Assembling
Group 2 Tightening
Tightening Bolts and Nuts
Piping Joint
Group 3 Painting
Painting
Group 4 Bleeding Air
Bleeding Air from Hydraulic Oil Tank
Bleeding Air from Hydraulic System
Bleed Air from Fuel System
Bleeding Air from Radiator/CCV Line
Bleeding Air from Brake (Axle)
Bleeding Air from Parking Brake
Group 5 Pressure Release Procedure
Front Attachment Hydraulic Circuit Pressure Release Procedure
Ride Control Accumulator (Option) Pressure Release Procedure
Parking Brake Accumulator Pressure Release Procedure
Group 6 Preparation
Preparation before Inspection and Maintenance
SECTION 2 MAINTENANCE STANDARD
Group 1 Body
Center Hinge
Pilot Valve (Two Lever Type )
Group 2 Front Attachment
Pin and Bushing
Standard Dimensions for Lift Arm and Bucket
SECTION 3 BODY
Group 1 Cab
Removal and Installation of Cab
Group 2 Counterweight
Removal and Installation of Counterweight
Group 3 Center Hinge
Removal and Installation of Center Hinge
Removal and Installation of the Hydraulic Hoses of Front Chassis Side
Group 4 Engine
Removal and Installation of Engine
Removal and Installation of Exterior Parts
Removal and Installation of Air Cleaner
Group 5 Radiator Assembly
Replacement of Radiator and Cooling System
Group 6 Hydraulic Oil Tank
Removal and Installation of Hydraulic Oil Tank
Group 7 Fuel Tank
Removal and Installation of Fuel Tank
Group 8 Pump Device
Removal and Installation of Pump Device
Disassembly and Assembly of Pump Device
Disassembly of Main Pump
Assembly of Main Pump
Disassembly of Regulator
Assembly of Regulator
Removal and Installation of Pilot Pump
Disassembly of Pilot Pump
Assembly of Pilot Pump
Group 9 Control Valve
Removal and Installation of Control Valve
Disassembly and Assembly of Control Valve
Group 10 Pilot Valve
Removal and Installation of Pilot Valve (Single Lever Type)
Removal and Installation of Pilot Valve (Two Lever Type )
Disassembly of Pilot Valve (Single Lever Type)
Assembly of Pilot Valve (Single Lever Type)
Disassembly of Pilot Valve (Two Lever Type)
Assembly of Pilot Valve (Two Lever Type)
Group 11 Brake Charge Valve
Removal and Installation of Brake Charge Valve
Structure of Brake Charge Valve
Disassembly of Brake Charge Valve
Assembly of Brake Charge Valve Valve
Removal and Installation of Brake Accumulators
Group 12 Combination Valve
Removal and Installation of Combination Valve
Structure and Tightening Torque of Combination Valve Components
Group 13 DEF Tank
Removal and Installation of DEF Tank
Disassembly of DEF Tank
Assembly of DEF Tank
Group 14 Flow Regulator Valve
Removal and Installation of Flow Regulator Valve
Structure of Flow Regulator Valve
Group 15 Cooling Fan System
Removal and Installation of Fan Control Valve
Disassembly and Assembly of Fan Control Valve
Removal and Installation of Fan Motor
Structure of Fan Motor
Removal and Installation of Pilot Pump
Group 16 Aftertreatment Device
Removal and Installation of Aftertreatment Device
Group 17 Ride Control Valve and Accumulator
Removal and Installation of Ride Control Valve and Accumulator
Disassembly of Ride Control Valve
Assembly of Ride Control Valve
Group 18 Battery Disconnect Switch
Removal of Battery Disconnect Switch
Installation of Battery Disconnect Switch
Structure of Battery Box Mount
SECTION 4 TRAVEL SYSTEM
Group 1 Tire
Removal and Installation of Front Tire
Removal and Installation of Rear Tire
Group 2 Drive Unit
Removal and Installation of Torque Converter
Disassembly and Assembly of Torque Converter
Disassembly and Assembly of Torque Converter Sub Assembly
Removal and Installation of Transmission
Disassembly and Assembly of Transmission Assy
Disassembly and Assembly of Clutch Assembly
Disassembly and Assembly of Low and Third Speed Clutch Assembly
Disassembly and Assembly of Second Speed Clutch Assembly
Disassembly and Assembly of Reverse Clutch Assembly
Disassembly and Assembly of First Clutch Assembly
Disassembly and Assembly of High Clutch Spider Assembly
Disassembly and Assembly of Gear Box Assembly
Removal and Installation of Transmission Control Valve
Disassembly and Assembly of Transmission Control Valve
Special Tools (For Transmission Assembly and Disassembly)
Drawings for Special Tools
Group 3 Axle
Removal and Installation of Front Axle
Removal and Installation of Rear Axle
Disassembly of Axle
Assembly of Axle
Disassembly and Assembly of Spider Assembly
Disassembly and Assembly of Internal Gear Hub Assembly
Removal and Installation of Floating Seal
Removal and Installation of Differential
Disassembly and Assembly of Differential
Disassembly and Assembly of Parking Brake Piston Assembly
Special Tools For Axle Assembly
Drawings for Special Tools
Group 4 Propeller Shaft
Removal and Installation of Propeller Shaft
Group 5 Brake Valve
Removal and Installation of Brake Valve
Disassembly and Assembly of Brake Valve Assembly
Disassembly and Assembly of Brake Valve
Maintenance Standard
Group 6 Steering Pilot Valve
Removal and Installation of Steering Pilot Valve
Disassembly of Steering Pilot Valve
Assembly of Steering Pilot Valve
Group 7 Steering Valve
Removal and Installation of Steering Valve
Disassembly of Steering Valve
Assembly of Steering Valve
Group 8 Steering Cylinder
Removal and Installation of Steering Cylinder
Disassembly of Steering Cylinder
Assembly of Steering Cylinder
Removal and Installation of Steering Accumulator
Tools for Steering Cylinder Disassembly and Assembly
Group 9 Emergency Steering Device
Removal and Installation of Emergency Steering Pump
Group 10 Reducing Valve
Removal and Installation of Reducing Valve
Disassembly of Reducing Valve
Assembly of Reducing Valve
Group 11 Stop Valve
Removal and Installation of Stop Valve
Disassembly of Stop Valve
Assembly of Stop Valve
Group 12 Main Pressure Block
Removal and Installation of Main Pressure Block
Structure of Main Pressure Block
Group 13 Priority Hammer Valve and Shuttle Valve
Removal and Installation of Priority Hammer Valve and Shuttle Valve
Structure of Priority Hammer Valve and Shuttle Valve
Group 14 Check Valve
Removal and Installation of Check Valve
Structure of Check Valve
SECTION 5 FRONT ATTACHMENT
Group 1 Front Attachment
Removal and Installation of Front Attachment
Removal and Installation of Lever (Bell Crank)
Removal and Installation of Bucket
Group 2 Cylinder
Removal and Installation of Lift Arm Cylinder
Removal and Installation of Bucket Cylinder
Disassembly of Lift Arm Cylinder
Assembly of Lift Arm Cylinder
Disassembly of Bucket Cylinder
Assembly of Bucket Cylinder
Tools for Cylinder Disassembly and Assembly
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