Hitachi ZX70-5G, ZX70LC-5G Excavator WDEA-EN-00 (2014.08.05) (Preview)
WDEA-EN-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
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 Pumps 1, 2
Main Pump 3
Swing Motor
Group 2 Undercarriage
Travel Motor
Parking Brake
Sprocket
Front Idler
Upper Roller
Lower Roller
Track
Group 3 Front Attachment
Pin and Bushing
Side Cutter (3053595, 3053596)
Point (4135496)
Standard Dimensions for Arm and Bucket Connection
Cylinder
SECTION 3 UPPERSTRUCTURE
Group 1 Cab
Removal and Installation of Cab
Dimensions of Cab Glass
Group 2 Counterweight
Removal and Installation of Counterweight
Group 3 Main Frame
Removal and Installation of Main Frame
Group 8 Pump Device
Removal and Installation of Pump Device
Disassembly of Main Pump 3
Assembly of Main Pump 3
Disassembly of Main Pumps 1, 2
Assembly of Main Pumps 1, 2
Structure of Gear Pump Assembly
Group 9 Control Valve
Removal and Installation of Control Valve
Disassembly of Control Valve
Assembly of Control Valve
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 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 Solenoid Valve Unit
Disassembly of Proportional Solenoid Valve
Assembly of Proportional Solenoid Valve
Group 13 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 14 Shockless Valve
Removal and Installation of Shockless Valve
Structure of Shockless Valve
SECTION 4 UNDERCARRIAGE
Group 1 Swing Bearing
Removal and Installation of Swing Bearing
Disassembly of Swing Bearing (Up to Machine Serial No. 100033, Swing Bearing: Up to Serial No. A3042591)
Assembly of Swing Bearing (Up to Machine Serial No. 100033, Swing Bearing: Up to Serial No. A3042591)
Disassembly of Swing Bearing (Machine Serial No. 100035, and Up, Swing Bearing: Serial No. A3045833 and Up)
Assembly of Swing Bearing (Machine Serial No. 100035, and Up, Swing Bearing: Serial No. A3045833 and Up)
Group 2 Travel Device
Removal and Installation of Travel Device
Disassembly of Travel Reduction Gear
Assembly of Travel Reduction Gear
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 (Without Blade)
Assembly of Center Joint (Without Blade)
Replacement of Body
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 Lower Roller
Assembly of Lower Roller
Group 7 Track
Removal and Installation of Track
SECTION 5 FRONT ATTACHMENT
Group 1 Front Attachment
Removal and Installation of Front Attachment
Group 2 Cylinder
Removal and Installation of Boom Cylinder
Removal and Installation of Arm Cylinder
Removal and Installation of Bucket Cylinder
Disassembly of Boom, Arm, and Bucket Cylinders
Assembly of Boom, Arm, and Bucket Cylinders
SERVICE MANUAL REVISION REQUEST FORM
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