Service manual Hitachi ZX870-5B, ZX870LC-5B, ZX870H-5B, ZX870LCH-5B, ZX870R-5B, ZX870LCR-5B | WJBC-EN-01

Hitachi ZX870-5B, ZX870LC-5B, ZX870H-5B, ZX870LCH-5B, ZX870R-5B, ZX870LCR-5B WJBC-EN-01 (Preview)

WJBC-EN-01

INTRODUCTION
SYMBOL AND ABBREVIATION
SAFETY
SECTION AND GROUP CONTENTS
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 specification
Final painted color
Group 4 Bleeding Air
Bleeding Air from Hydraulic Oil Tank
Bleeding Air from Hydraulic System
Bleeding Air from Fuel System
Group 5 Pressure Release Procedure
Hydraulic Circuit Pressure Release Procedure
Group 6 Preparation
Preparation before Inspection and Maintenance
SECTION 2 MAINTENANCE STANDARD
Group 1 Upperstructure
Main Pump
Fan Pump
Swing Motor
Group 2 Undercarriage
Travel Device
Sprocket
Center Joint
Front Idler
Upper Roller
Lower Roller
Track
Group 3 Front Attachment
Pin and Bushing
Side Cutter
Point
Standard Dimensions for Arm and Bucket Connection
Standard Dimensions for Arm and Boom Connection
Cylinder
SECTION 3 UPPERSTRUCTURE
Group 1 Cab
Removal and Installation of Cab
Dimensions of Cab Glass (Standard Cab)
Dimensions of Cab Glass (H Cab)
Group 2 Counterweight
Removal and Installation of Counterweight
Group 3 Main Frame
Removal and Installation of Main Frame
Group 4 Engine
Removal and Installation of Engine
Group 5 Radiator Assembly
Replacement of Radiator
Replacement of Intercooler
Replacement of Oil Cooler
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 of Pump Transmission
Assembly of Pump Transmission
Disassembly of Main Pump
Assembly of Main Pump
Disassembly of Regulator for Main Pump
Assembly of Regulator for Main Pump
Disassembly of Fan Pump
Assembly of Fan Pump
Disassembly of Regulator for Fan Pump
Assembly of Regulator for Fan Pump
Structure of Pilot Pump
Group 9 Control Valve
Removal and Installation of Control Valve
Disassembly and Assembly of Valve Unit
Disassembly of Control Valve (4-Spool Side)
Assembly of Control Valve (4-Spool Side)
Disassembly of Control Valve (5-Spool Side)
Assembly of Control Valve (5-Spool Side)
Group 10 Swing Device
Removal and Installation of Swing Device
Disassembly of Swing Device
Assembly of Swing Device
Disassembly of Swing Motor
Assembly of Swing Motor
Structure of Swing Parking Brake Valve
Group 11 Pilot Valve
Removal and Installation of Pilot Valve (Left)
Removal and Installation of Pilot Valve (Right)
Removal and Installation of Travel Pilot Valve
Disassembly of Pilot Valves (Right and Left)
Assembly of Pilot Valves (Right and Left)
Disassembly of Travel Pilot Valve
Assembly of Travel Pilot Valve
Group 12 Solenoid Valve
Removal and Installation of Pilot Shut-Off Solenoid Valve
Removal and Installation of 4-Spool Solenoid Valve Unit
Removal and Installation of 2-Spool Solenoid Valve Unit
Disassembly of Pilot Shut-Off Solenoid Valve
Assembly of Pilot Shut-Off Solenoid Valve
Structure of 4-Spool Solenoid Valve Unit
Structure of 2-Spool Solenoid Valve Unit
Group 13 Signal Control Valve
Removal and Installation of Signal Control Valve
Structure of Signal Control Valve
Group 14 Shockless Valve
Removal and Installation of Shockless Valve
Structure of Shockless Valve
Group 15 Fan Valve
Removal and Installation of Oil Cooler Fan Valve
Removal and Installation of Radiator Fan Valve
Structure of Oil Cooler Fan Valve and Radiator Fan Valve
Group 16 Fan Motor
Removal and Installation of Oil Cooler Fan Motor
Removal and Installation of Radiator Fan Motor
Structure of Oil Cooler Fan Motor and Radiator Fan Motor
Group 17 Muffler Filter
Removal and Installation of Muffler Filter
Disassembly of Muffler Filter
Assembly of Muffler Filter
SECTION 4 UNDERCARRIAGE
Group 1 Swing Bearing
Removal and Installation of Swing Bearing
Disassembly of Swing Bearing
Assembly 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
Precautions for Using Floating Seal
Group 3 Center Joint
Removal and Installation of Center Joint
Disassembly of Center Joint
Assembly of Center Joint
Replacement of Body and Spindle
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 of Front Idler
Assembly of Front Idler
Precautions for Using Floating Seal
Group 6 Upper and Lower Rollers
Removal and Installation of Upper Roller
Removal and Installation of Lower Roller
Disassembly of Upper Roller
Assembly of Upper Roller
Disassembly of Lower Roller
Assembly of Lower Roller
Precautions for Using Floating Seal
Group 7 Track
Removal and Installation of Track
SECTION 5 FRONT ATTACHMENT
Group 1 Front Attachment
Removal and Installation of Bucket
Removal and Installation of Arm
Removal and Installation of Boom
Remove and Install Bushing
Group 2 Cylinder
Removal and Installation of Boom Cylinder
Removal and Installation of Arm Cylinder
Removal and Installation of Bucket Cylinder
Disassembly of Boom Cylinder
Assembly of Boom Cylinder
Disassembly of Arm Cylinder
Assembly of Arm Cylinder
Disassembly of Bucket Cylinder
Assembly of Bucket Cylinder
Group 3 Hose Rupture Valve
Removal and Installation of Hose Rupture Valve for Boom Cylinder
Removal and Installation of Hose Rupture Valve for Arm Cylinder
Structure of Hose Rupture Valve for Boom Cylinder
Structure of Hose Rupture Valve for Arm Cylinder(Bottom Side)
Structure of Hose Rupture Valve for Arm Cylinder(Rod Side)
SECTION 6 COUNTERWEIGHT REMOVAL/INSTALLATION DEVICE
Group 1 Cylinder
Removal and Installation of Counterweight Removal/Installation Cylinder
Disassembly of Counterweight Removal / Installation Cylinder
Assembly of Counterweight Removal / Installation Cylinder
SERVICE MANUAL REVISION REQUEST FORM