Service manual Hitachi ZX190W-5B Wheeled Excavator | WLBB-EN-00 (2015.02.03)

Hitachi ZX190W-5B Wheeled Excavator WLBB-EN-00 (2015.02.03) (Preview)

WLBB-EN-00
INTRODUCTION
SYMBOL AND ABBREVIATION
SAFETY
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
– Group 1 Precautions for Disassembling and Assembling
— Precautions for Disassembling andAssembling
– 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
— Bleeding Air from Transmission
— Bleeding Air from Brake (Axle)
– 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
— Pump Device
— Swing Motor
– Group 2 Under carriage
— Center Joint
– Group 3 Front Attachment
— Pin and Bushing
— Side Cutter (2014503, 2014504)
— Point (4427919)
— 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
– 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 8 Pump Device
— Removal and Installation of Pump Device
— Removal and Installation of Coupling
— Removal and Installation of Pilot Pump
— Disassembly of Pump Device
— Assembly of Pump Device
— Disassembly of Regulator
— Assembly of Regulator
— Disassembly of Solenoid Valve
— Assembly of Solenoid Valve
— Structure of Pilot Pump
— Structure of Steering Pump
– Group 9 Control Valve
— Removal and Installation of Control Valve
— Disassembly of Housing
— Assembly of Housing
— Disassembly of Control Valve (Housing A Side)
— Assembly of Control Valve (Housing A Side)
— Disassembly of Control Valve (Housing B Side)
— Assembly of Control Valve (Housing B Side)
— Disassembly of Control Valve (Housing C Side)
— Assembly of Control Valve (Housing C Side)
– Group 10 Swing Device
— Removal and Installation of Swing Device
— Disassembly of Swing Device
— Assembly of Swing Device
— Disassembly 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 Valves
— Assembly of Travel Pilot Valves
– 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 Axle Lock/Brake Solenoid Valve Unit
— Removal and Installation of Pump 1/Pump 2 Flow Rate Control Solenoid Valve Unit
— Removal and Installation of 7-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 Axle Lock/Brake Solenoid Valve Unit
— Structure of Pump1/Pump 2 Flow RateControl Solenoid Valve Unit
— Structure of 7-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 Swing Shockless Valve
— Removal and Installation of Travel Shockless Valve
— Structure of Swing Shockless Valve
— Structure of Travel Shockless Valve
– Group 15 Muffler Filter
— Removal and Installation of Muffler Filter
— Disassembly of Muffler Filter
— Assembly of Muffler Filter
– Group 16 Electric Lever
— Removal and Installation of Auxiliary/Positioning Electric Lever
— Removal and Installation of Blade/Outrigger Electric Lever
— Disassembly of Electric Lever
— Assembly of Electric Lever
– Group 17 Steering Valve
— Removal and Installation of Steering Valve
— Disassembly of Steering Valve
— Assembly of Steering Valve
– Group 18 Brake Valve
— Removal and Installation of Brake Valve
— Disassembly of Brake Valve
— Assembly of Brake Valve
– Group 19 Accumulator Charging Valve
— Removal and Installation of Accumulator Charging Valve
— Structure of Accumulator Charging Valve
– Group 20 Accumulator Manifold
— Removal and Installation of Accumulator Manifold
— Structure of Accumulator Manifold
SECTION 4 UNDERCARRIAGE
– Group 1 Swing Bearing
— Removal and Installation of Swing Bearing
— Disassembly of Swing Bearing
— Assembly of Swing Bearing
– Group 2 Travel Motor
— Removal and Installation of Travel Motor
— 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
– Group 4 Transmission
— Removal and Installation of Transmission
— Disassembly of Transmission
— Assembly of Transmission
– Group 5 Axle
— Removal and Installation of Front Axle
— Removal and Installation of Rear Axle
— Disassembly of Front Axle
— Assembly of Front Axle
— Disassembly of Rear Axle
— Assembly of Rear Axle
— Disassembly of Differential
— Assembly of Differential
— Disassembly of Steering Cylinder
— Assembly of Steering Cylinder
— Removal and Installation of Tie Rod
— Adjustment of Steering
– Group 6 Axle Lock Cylinder
— Removal and Installation of Axle Lock Cylinder
— Disassembly of Axle Lock Cylinder
— Assembly of Axle Lock Cylinder
– Group 7 Operate Check Valve
— Removal and Installation of Operate Check Valve (For Axel Lock Cylinder)
— Removal and Installation of Operate Check Valve (For Blade Cylinder)
— Removal and Installation of Operate Check Valve for Outrigger Cylinder
— Structure of Operate Check Valve (For Axel Lock Cylinder)
— Structure of Operate Check Valve (For Blade/Outrigger Cylinder)
– Group 8 Solenoid Valve
— Removal and Installation of 2-Spool Solenoid Valve Unit for Blade/Outrigger Cylinder
— Removal and Installation of Transmission Control Solenoid Valve
— Structure of 2-Spool Solenoid Valve Unit (For Blade/ Outrigger Cylinder)
– Group 9 Propeller Shaft
— Removal and Installation of Propeller Shaft
– Group 10 Cylinder
— Removal and Installation of Blade Cylinder
— Removal and Installation of Outrigger Cylinder
— Disassembly of Blade/ Outrigger Cylinders
— Assembly of Blade/ Outrigger Cylinders
SECTION 5 FRONT ATTACHMENT
– Group 1 Front Attachment
— Removal and Installation of Front Attachment (Monoblock Boom)
— Removal and Installation of Front Attachment (2-Piece Boom)
– Group 2 Cylinder
— Removal and Installation of Boom Cylinder
— Removal and Installation of Arm Cylinder
— Removal and Installation of Bucket Cylinder
— Removal and Installation of Positioning Cylinder
— Disassembly of Boom (Monoblock Boom, 2-Piece Boom), Arm (Monoblock Boom, 2-Piece Boom), Bucket, and Positioning Cylinders
— Assembly of Boom (Monoblock Boom, 2-Piece Boom), Arm (Monoblock Boom, 2-Piece Boom), Bucket, and Positioning Cylinders
– 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
— Removal and Installation of Hose Rupture Valve for Positioning Cylinder
— Structure of Hose Rupture Valve for Boom Cylinder (Right)
— Structure of Hose Rupture Valve for Boom Cylinder (Left)
— Structure of Hose Rupture Valve for Arm Cylinder
— Structure of Hose Rupture Valve for Positioning Cylinder
SERVICE MANUAL REVISION REQUEST FORM