Hitachi ZX870-6, ZX870LC-6, ZX890H-6, ZX890LCH-6, ZX890R-6, ZX890LCR-6 WJBL40-EN-00 (Preview)
WJBL40-EN-00
– CONTENTS
— SECTION 1 GENERAL
— SECTION 2 MAINTENANCE STANDARD
— SECTION 3 UPPERSTRUCTURE
— SECTION 4 UNDERCARRIAGE
— SECTION 5 FRONT ATTACHMENT
– INTRODUCTION
— To The Reader
— Additional References
— Manual Composition
— Page Number
— Trademark
— Safety Alert Symbol and Headline Notations
— Units Used
– SYMBOL AND ABBREVIATION
– SAFETY
— Recognize Safety Information
— Understand Signal Words
— Follow Safety Instructions
— Prepare for Emergencies
— Wear Protective Clothing
— Protect Against Noise
— Inspect Machine
— General Precautions for the Cab
— Use Handholds and Steps
— Adjust the Operator’s Seat
— Ensure Safety Before Rising from or Leaving Operator’s Seat
— Fasten Your Seat Belt
— Move and Operate Machine Safely
— Operate Only from Operator’s Seat
— Jump Starting
— Keep Riders off Machine
— Precautions for Operations
— Investigate Job Site Beforehand
— Install OPG Guard
— Restriction of Attachment Installation
— Provide Signals for Jobs Involving Multiple Machines
— Confirm Direction of Machine to Be Driven
— Drive Machine Safely
— Avoid Injury from Rollaway Accidents
— Avoid Injury from Back-Over and Swing Accidents
— Keep People Clear from Working Area
— Never Position the Bucket Over Anyone
— Avoid Undercutting
— Avoid Tipping
— Never Undercut a High Bank
— Dig with Caution
— Operate with Caution
— Avoid Power Lines
— Precautions for Lightning
— Object Handling
— Protect Against Flying Debris
— Park Machine Safely
— Handle Fluids Safely−Avoid Fires
— Transport Safely
— Practice Safe Maintenance
— Warn Others of Service Work
— Support Machine Properly
— Stay Clear of Moving Parts
— Prevent Parts from Flying
— Avoid Injury from Attachment Falling Accident
— Prevent Burns
— Replace Rubber Hoses Periodically
— Avoid High-Pressure Fluids
— Prevent Fires
— Evacuating in Case of Fire
— Beware of Exhaust Fumes
— Precautions for Welding and Grinding
— Avoid Heating Near Pressurized Fluid Lines
— Avoid Applying Heat to Lines Containing Flammable Fluids
— Precautions for Handling Accumulator and Gas Damper
— Remove Paint Before Welding or Heating
— Beware of Asbestos and Silica Dust and Other Contamination
— Prevent Battery Explosions
— Service Air Conditioning System Safely
— Handle Chemical Products Safely
— Dispose of Waste Properly
— Never Ride Attachment
— Notes on Aftertreatment Device
— Precautions for Communication Terminal
— Precautions for Communication Terminal Equipment
— Notes on Protection of Operator’s Station when the Machine Rolls Over
— Before Returning the Machine to the Customer
– 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 System
— Bleeding Air from Fuel System
— Air Bleeding from the Diesel Exhaust Fluid Defrosting Piping
— Group 5 Preparation
— Preparation before Inspection and Maintenance
— Hydraulic Circuit Pressure Release Procedure
— Pressure Release from Hydraulic Oil Tank
— Pressure Release from Expansion Tank
– SECTION 2 MAINTENANCE STANDARD
— Group 1 Upperstructure
— Pump Device
— Swing Motor
— Group 2 Undercarriage
— Travel Motor
— 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 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 Housing
— 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 Reduction Gear
— Assembly of Swing Reduction Gear
— Disassembly of Swing Motor
— Assembly of Swing Motor
— Structure of Swing Parking Brake Selection 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 Aftertreatment Device
— Removal and Installation of Aftertreatment Device
— Group 15 DEF Tank
— Removal and Installation of DEF Tank
— Group 16 Coolant Control Valve
— Removal and Installation of Coolant Control Valve
— Group 17 DEF Supply Module
— Removal and Installation of DEF Supply Module
— Group 19 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 20 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 21 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
— 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 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
— Removal and Installation of 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, Arm, and Bucket Cylinders
— Assembly of Boom, Arm, and Bucket Cylinders
– SERVICE MANUAL REVISION REQUEST FORM
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