Technical Manual Hitachi ZX35U-5N, ZX50U-5N, ZX60USB-5N Hydraulic Angle Blade | TADG-EN-OP-00 (2022.06.30)

Technical Manual Hitachi ZX35U-5N, ZX50U-5N, ZX60USB-5N Hydraulic Angle Blade TADG-EN-OP-00 (2022.06.30) (Preview)

INTRODUCTION
To The Reader
Additional References
Manual Composition
Page Number
Safety Alert Symbol and Headline Notations
Units Used
SYMBOL AND ABBREVIATION
Symbols and abbreviations
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 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 Silicon Dust and Other Contamination
Prevent Battery Explosions
Service Air Conditioning System Safely
Handle Chemical Products Safely
Dispose of Waste Properly
Never Ride Attachment
Precautions for Communication Terminal
Precautions for the Communications Terminal (Optional)
Precautions about Operator’s Seat Protections when Overturned (4-pillar Canopy or Cab Models)
Before Returning the Machine to the Customer
SECTION AND GROUP CONTENTS
CONTENTS
GENERAL
Component Layout
Main Component (ZX35U-5N)
Main Component (ZX50U-5N)
Main Component (ZX60USB-5N)
Electrical System (Switches and Relays) (ZX35U-5N, ZX50U-5N, ZX60USB-5N)
Specifications
Hydraulic Component
SYSTEM
Hydrauric System
Outline
Pilot Circuit (ZX35U-5N)
Main Circuit (ZX35U-5N)
Single Operation Circuit (ZX35U-5N)
Pilot Circuit (ZX50U-5N)
Main Circuit (ZX50U-5N)
Main Circuit (ZX50U-5N)
Pilot Circuit (ZX60USB-5N)
Main Circuit (ZX60USB-5N)
Single Operation Circuit (ZX60USB-5N)
Electrical System
Angle Blade Circuit (ZX35U-5N, ZX50U-5N, ZX60USB-5N)
COMPONENT OPERATION
Others (Upperstructure)
Solenoid Valve
Others (Undercarriage)
Center Joint
OPERATIONAL PERFORMANCE TEST
Standard
Operational Performance Standard Table
Machine Performance Test
Hydraulic Cylinder Cycle Time
Blade Lever Operating Force
Blade Lever Stroke
TROUBLESHOOTING
Troubleshooting B
Travel System Troubleshooting (ZX35U-5N)
Travel System Troubleshooting (ZX50U-5N, ZX60USB-5N)
Blade System Troubleshooting (ZX35U-5N)
Blade System Troubleshooting (ZX50U-5N, ZX60USB-5N)
Angle Blade System Troubleshooting
SERVICE MANUAL REVISION REQUEST FORM
The Attached Diagram List