Service manual Hitachi ZX670LC-5G, ZX670LCH-5G, ZX670LCR-5G Excavator | WJBF-EN-00

Hitachi ZX670LC-5G, ZX670LCH-5G, ZX670LCR-5G Excavator WJBF-EN-00 (Preview)

WJBF-E-00
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
Bleeding Air from Radiator
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 and Oil Cooler
Replacement of Intercooler
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
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 Fan Valve
Structure of Fan Valve
Group 16 Fan Motor
Removal and Installation of Fan Motor
Structure of Fan Motor
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
SECTION 6 ENGINE AND ACCESSORY
General Information
General Repair Instruction
Illustration Arrows
Abbreviations Charts
Nut and Bolt Angular Tightening Method
Standard Bolt Torque Specifications
Recommended Thread Locking Agents
Main Data and Specification
Performance Curve
Engine External Drawing
Service Standard
Torque Specifications
Special Tools
Troubleshooting
Lubricant Application
Sealant Application
Service Information
Identification
Lubrication System
Fuel System
Cooling System
Valve Clearance Adjustment
Compression Pressure Measurement
Recommended Lubricants
Engine Oil Viscosity Chart
Engine Mechanical
Service Precautions
General Description
Fan Center
Turbocharger
Exhaust Manifold
Inlet Manifold
Water Pump
Alternator
Oil Cooler
Injection Pump
Coupling Assembly
Cylinder Head
Rocker Arm and Shaft Assembly
Camshaft
Timing Gears
Flywheel Housing
Oil Pan
Piston
Crankshaft
Crank Pulley
Flywheel
Cylinder Block
Engine Cooling
Service Precautions
General Description
Water Pump
Thermostat
Engine Fuel
Service Precautions
General Description
Fuel Filter
Injection Nozzle Holder
Injection Pump
Injection Nozzle Holder-Tow-Stage Injection Type
Starting and Charging
Service Precautions
Alternator
Starter Motor
Engine Lubrication
Service Precaution
General Description
Oil Pump
Oil Cooler
Engine Induction
Service Precaution
Turbocharger
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