Hitachi ZX180LC-7, ZX180LCN-7 Hydraulic Excavator WDB050-EN-00 (2021.08.27) (Preview)
WDB050-EN-00
INTRODUCTION
– To The Reader
– Additional References
– Manual Composition
– Page Number
– Trademark
– Safety Alert Symbol and Headline Notations
– Units Used
SYMBOL AND ABBREVIATION
– Symbol and Abbreviation
CONTRASTING LIST OF PART NAME
– Contrasting List of Part Name between Technical Manual and Parts Catalog
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 Handrail 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
– Start the Engine Only from Operator’s Seat
– Jump Starting
– Keep Riders off Machine
– Precautions for Operations
– Perform Job Site Risk Assessment Beforehand
– Install OPG Guard
– Restriction of Attachment Installation
– Provide Signals for Jobs Involving Multiple Machines
– Confirm Direction of Machine Travel
– Drive Machine Safely
– Avoid Injury from Rollaway Accidents
– Avoid Accidents from Reversing and Swing Operation
– Keep People Clear from Working Area
– Never Position the Bucket Over Anyone
– Avoid Undercutting
– Avoid Tipping
– Never Undercut a High Bank
– Dig with Caution
– Caution with an Overhead Obstacle
– Avoid Power Lines
– Precautions for Lightning
– Object Handling
– Protect Against Flying Debris and Falling Object
– Park Machine Safely
– Handle Fluids Safely−Avoid Fires
– Transport Safely
– Practice Maintenance Safely
– 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
— Check for Oil Leaks:
— Check for Short circuits:
— Clean up Flammable Materials:
— Check Key Switch:
— Check Heat Shields:
– 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 by Operator’s Station when the Machine Rolls Over
– Before Returning the Machine to the Customer
SECTION AND GROUP CONTENTS
CONTENTS
GENERAL
– Precautions for Disassembling and Assembling
— Precautions for Disassembling and Assembling
— Precautions for Using Floating Seal
— Precautions for Using Nylon Sling
— Maintenance Standard Terminology
– Tightening
— Tightening Bolts and Nuts
— Bolt Types
— Specified Tightening Torque Chart
— Tightening Order
— Precautions for Spilt Flange
— Nut and Bolt Locking
— Tightening Piping Joint
— Union Joint
— Pipe Joint
— O-Ring Face Seal Joint
— Quick Coupling
— Screw-In Connection
— Seal Tape Application
— Low-Pressure-Hose Clamp Tightening
— Connecting Hose
– Painting
— Painting
– Bleeding Air
— Bleeding Air from Hydraulic System
— Bleeding Air from Pump
— Bleeding Air from Travel Motor, Swing Motor
— Bleeding Air from Hydraulic Circuit
— Bleeding Air from Fuel System
— Air Bleeding from the DEF Defrosting Piping
– Preparation
— Preparation before Inspection and Maintenance
— Hydraulic Circuit Pressure Release Procedure
— Pressure Release from Hydraulic Oil Tank
— Pressure Release from Expansion Tank
MAINTENANCE STANDARD
– Upperstructure
— Maintenance Standard for Pump Device
— Maintenance Standard for Swing Motor
– Undercarriage
— Maintenance Standard for Travel Motor
— Maintenance Standard for Sprocket
— Maintenance Standard for Front Idler
— Maintenance Standard for Upper Roller
— Maintenance Standard for Lower Roller
— Maintenance Standard for Track
— Maintenance Standard for Sprocket (N Spec. machine)
— Maintenance Standard for Track (N Spec. machine)
– Front Attachment
— Maintenance Standard for Pin and Bushing
— Maintenance Standard for Side Cutter (2014503, 2014504)
— Maintenance Standard for Point (4427919)
— Standard Dimensions for Arm and Bucket Connection
— Standard Dimensions for Arm and Boom Connection
UPPERSTRUCTURE
– Cab
— Removal of Cab Interior Parts
— Removal of Cab Exterior Parts
— Removal of Cab Body
— Removal of Controller Assembly and Parts Around the Monitor
— Installation of Controller Assembly and Parts Around the Monitor
— Installation of Cab Body
— Installation of Cab Exterior Parts
— Installation of Cab Interior Parts
— Dimensions of Cab Glass
— Procedure to Remove Cab Glass
— Procedure to Install Cab Glass
— Procedures to Install Upper Door Glass
— Procedures to Install Upper Front Glass
– Counterweight
— Removal of Counterweight
— Installation of Counterweight
– Main Frame
— Removal of Main Frame
— Installation of Main Frame
– Engine
— Preparation before Removal of Engine
— Removal of Covers and Related Parts Around the Engine
— Removal of Wire Harnesses and Hoses Around the Engine
— Removal of Engine Body
— Installation of Engine Body
— Installation of Wire Harnesses and Hoses Around the Engine
— Installation of Related Parts of the Engine
— Work after Installation of Engine and Installation of Covers
– Radiator Assembly
— Removal of Radiator
— Installation of Radiator
— Removal of Intercooler
— Installation of Intercooler
— Removal of Oil Cooler
— Installation of Oil Cooler
– Hydraulic Oil Tank
— Removal of Hydraulic Oil Tank
— Installation of Hydraulic Oil Tank
– Fuel Tank
— Removal of Fuel Tank
— Installation of Fuel Tank
– Pump Device
— Removal of Pump Device
— Installation of Pump Device
— Removal of Coupling
— Installation of Coupling
— 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
– Control Valve
— Removal of Control Valve
— Installation of Control Valve
– Swing Device
— Removal of Swing Device
— Installation of Swing Device
— Disassembly of Swing Reduction Gear
— Assembly of Swing Reduction Gear
— Disassembly of Swing Motor
— Assembly of Swing Motor
– Pilot Valve
— Removal of Pilot Valve (Left)
— Installation of Pilot Valve (Left)
— Removal of Pilot Valve (Right)
— Installation of Pilot Valve (Right)
— Disassembly of Pilot Valves (Left and Right)
— Assembly of Pilot Valves (Left and Right)
— Removal of Travel Pilot Valve
— Installation of Travel Pilot Valve
— Disassembly of Travel Pilot Valve
— Assembly of Travel Pilot Valve
– Solenoid Valve
— Removal of Pilot Shut-Off Solenoid Valve
— Installation of Pilot Shut-Off Solenoid Valve
— Disassembly of Pilot Shut-Off Solenoid Valve
— Assembly of Pilot Shut-Off Solenoid Valve
— Removal of 4-Spool Solenoid Valve Unit
— Installation of 4-Spool Solenoid Valve Unit
— Structure of 4-Spool Solenoid Valve Unit
— Removal of 2-Spool Solenoid Valve Unit
— Installation of 2-Spool Solenoid Valve Unit
— Structure of 2-Spool Solenoid Valve Unit
– Signal Control Valve
— Removal of Signal Control Valve
— Installation of Signal Control Valve
— Structure of Signal Control Valve
– Aftertreatment Device
— Removal of Aftertreatment Device
— Installation of Aftertreatment Device
– DEF Tank
— Removal of DEF Tank
— Installation of DEF Tank
— Removal of DEF Tank Suction Filter
— Installation of DEF Tank Suction Filter
— Removal of DEF Tank Water Supply Inlet Filter
— Installation of DEF Tank Water Supply Inlet Filter
— Assembly of DEF Tank Water Supply Inlet Filter
– Coolant Control Valve
— Removal of Coolant Control Valve
— Installation of Coolant Control Valve
– DEF Supply Module
— Removal of DEF Supply Module
— Installation of DEF Supply Module
UNDERCARRIAGE
– Swing Bearing
— Removal of Swing Bearing
— Installation of Swing Bearing
— Disassembly of Swing Bearing
— Assembly of Swing Bearing
– Travel Device
— Installation of Travel Device
— Removal of Travel Device
— Removal of Travel Device (N Spec. machine)
— Installation of Travel Device (N Spec. machine)
— Disassembly of Travel Device
— Assembly of Travel Device
— Disassembly of Travel Device (N Spec. machine)
— Assembly of Travel Device (N Spec. machine)
— Disassembly of Travel Motor
— Assembly of Travel Motor
— Disassembly of Travel Motor (N Spec. machine)
— Assembly of Travel Motor (N Spec. machine)
— Disassembly of Brake Valve
— Assembly of Brake Valve
– Center Joint
— Removal of Center Joint
— Installation of Center Joint
— Disassembly of Center Joint
— Assembly of Center Joint
— Replacement of Body and Spindle
– Track Adjuster
— Removal of Track Adjuster
— Installation of Track Adjuster
— Disassembly of Front Idler
— Assembly of Front Idler
— Disassembly of Track Adjuster
— Assembly of Track Adjuster
– Upper and Lower Rollers
— Removal of Upper Roller
— Installation of Upper Roller
— Removal of Lower Roller
— Installation of Lower Roller
— Disassembly of Lower Roller
— Assembly of Lower Roller
– Track
— Removal of Track
— Installation of Track
— Removal of Track (N Spec. machine)
— Installation of Track (N Spec. machine)
FRONT ATTACHMENT
– Front Attachment
— Removal of Front Attachment
— Installation of Front Attachment
– Cylinder
— Removal of Boom Cylinder
— Installation of Boom Cylinder
— Disassembly of Boom Cylinder
— Assembly of Boom Cylinder
— Removal of Arm Cylinder
— Installation of Arm Cylinder
— Disassembly of Arm Cylinder
— Assembly of Arm Cylinder
— Removal of Bucket Cylinder
— Installation of Bucket Cylinder
— Disassembly of Bucket Cylinder
— Assembly of Bucket Cylinder
— Removal of Positioning Cylinder
— Installation of Positioning Cylinder
— Disassembly of Positioning Cylinder
— Assembly of Positioning Cylinder
– Hose Rupture Valve
— Removal of Hose Rupture Valve for Boom Cylinder
— Installation of Hose Rupture Valve for Boom Cylinder
— Structure of Hose Rupture Valve for Boom Cylinder (Right)
— Structure of Hose Rupture Valve for Boom Cylinder (Left)
— Removal of Hose Rupture Valve for Arm Cylinder
— Installation of Hose Rupture Valve for Arm Cylinder
— Structure of Hose Rupture Valve for Arm Cylinder
— Removal of Hose Rupture Valve for Positioning Cylinder
— Installation of Hose Rupture Valve for Positioning Cylinder
— Structure of Hose Rupture Valve for Positioning Cylinder
SERVICE MANUAL REVISION REQUEST FORM
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