Service manual Hitachi ZW220, ZW250 Wheel Loader | W4GB-E-00 (2017.07.06)

Hitachi ZW220, ZW250 Wheel Loader W4GB-E-00 (2017.07.06) (Preview)

ZX220/250_W4GB-E-00

– INTRODUCTION
– SAFETY
– SECTION AND GROUP CONTENTS
– SECTION 1 GENERAL
— Group 1 Precautions for Disassembling and Assembling
— Precautions for Disassembling and Assembling
— Maintenance Standard Terminology
— Group 2 Tightening
— Tightening Torque Specification
— Torque Chart
— Piping Joint
— Periodic Replacement of Parts
— Group 3 Painting
— Painting
— Group 4 Bleeding Air from Hydraulic Oil Tank
— Bleeding Air from Hydraulic Oil Tank
– SECTION 2 BODY (UPPERSTRUCTURE)
— Group 1 Cab
— Remove and Install Cab
— Group 2 Counterweight
— Remove and Install Counterweight
— Group 3 Center Hinge
— Disassemble Center Hinge
— Assemble Center Hinge
— Group 4 Hood
— Removal and Installation of Hood
— Group 5 Hydraulic Oil Tank
— Removal and Installation of Hydraulic Oil Tank
— Group 6 Pump Device
— Removal and Installation of Pump Device
— Removal and Installation of Pilot Pump and Regulator
— Disassembly of Main Pump
— Assembly of Main Pump
— Disassembly of Regulator
— Assembly of Regulator
— Disassembly of Priority Valve
— Assembly of Priority Valve
— Structure of Pilot Pump
— Maintenance Standard
— Group 7 Control Valve
— Removal and Installation of Control Valve (ZW220)
— Removal and Installation of Control Valve (ZW250)
— Disassembly of Control Valve (ZW220)
— Assembly of Control Valve (ZW220)
— Disassembly of Control Valve (ZW250)
— Assembly of Control Valve (ZW250)
— Group 8 Pilot Valve
— Removal and Installation of Pilot Valve
— Disassembly of Standard Pilot Valve for Front Attachment
— Assembly of Standard Pilot Valve for Front Attachment
— Maintenance Standard
— Disassembly of Joy-Stick Type Pilot Valvefor Additional Circuit (Optional)
— Assembly of Joy-Stick Type Pilot Valvefor Additional Circuit (Optional)
— Disassembly of 2-Way Lever Type Pilot Valve for Additional Circuit (Optional)
— Assembly of 2-Way Lever Type Pilot Valve for Additional Circuit
— Group 9 Pilot Shut-Off Valve
— Removal and Installation of Pilot Shut-Off Valve
— Disassembly of Pilot Shut-Off Valve
— Assembly of Pilot Shut-Off Valve
— Group 10 Hydraulic Fan Pump and Motor
— Removal and Installation of Hydraulic Fan Pump
— Removal and Installation of Hydraulic Fan Motor
— Disassembly of Fan Pump
— Assembly of Fan Pump
— Fan Motor Standard
– SECTION 3 BODY (TRAVEL SYSTEM)
— Group 1 Tire
— Removal and Installation of Tire
— Group 2 Drive Unit
— Removal and Installation of Drive Unit
— Removal of Torque Converter and Converter Housing
— Installation of Torque Converter and Converter Housing
— Removal of Flange (Front, Rear) and Parking Brake
— Installation of Flange (Front, Rear) and Parking Brake
— Disassembly of Parking Brake
— Assembly of Parking Brake
— Removal of Oil Filter
— Installation of Oil Filter
— Disassembly of Duct Plate
— Assembly of Duct Plate
— Disassembly of Control Valve
— Assembly of Control Valve
— Removal of Oil Feeder and Pump
— Assembly of Oil Feeder
— Assembly of Pump
— Removal of PTO Shaft
— Installation of PTO Shaft
— Removal of Clutch and Input/Output Shaft
— Installation of Clutch and Input/Output Shaft
— Disassembly of Clutches K1, K2, and K3
— Assembly of Clutches K1, K2 and K3
— Disassembly of Clutches KR and KV
— Assembly of Clutches KR and KV
— Disassembly of Clutch K4
— Assembly of K4 Clutch
— Group 3 Axle
— Removal and Installation of Axle
— Disassembly of Axle
— Assembly of Axle
— Group 4 Propeller Shaft
— Removal and Installation of Propeller Shaft
— Group 5 Brake Valve
— Removal and Installation of Brake Valve
— Disassembly of Brake Valve
— Assembly of Brake Valve
— Maintenance Standard
— Group 6 Charging Block
— Removal and Installation of Charging Block
— Disassembly of Charging Block
— Assembly of Charging Block
— Group 7 Steering Pilot Valve
— Removal and Installation of Steering Pilot Valve
— Disassembly of Steering Pilot Valve
— Assembly of Steering Pilot Valve
— Group 8 Steering Valve
— Removal and Installation of Steering Valve
— Disassembly of Steering Valve
— Assembly of Steering Valve
— Group 9 Steering Cylinder
— Removal and Installation of Steering Cylinder
— Disassembly of Steering Cylinder
— Assembly of Steering Cylinder
— Group 10 Parking Brake Solenoid
— Removal and Installation of Parking Brake Solenoid Valve
— Construction of Solenoid Valve
– SECTION 4 FRONT ATTACHMENT
— Group 1 Front Attachment
— Removal and Installation of Front Attachment
— Group 2 Cylinder
— Removal and Installation of Cylinder (Lift Cylinder)
— Removal and Installation of Cylinder (Bucket Cylinder)
— Disassembly of Bucket Cylinder
— Assembly of Bucket Cylinder
— Disassembly of Lift Cylinder
— Assembly of Lift Cylinder
– SERVICE MANUAL REVISION REQUEST FORM