All-Inclusive Factory Service Technical manual for Hitachi Wheel Loaders Models Zaxis ZW550-5B.

This manual will assist you in diagnosing, repairing, troubleshooting, and operating for your wheel loader.

Covered Models:
   Zaxis ZW550-5B

The manual comprises 6 documents, including the Workshop Manual, Troubleshooting Manual, Operational Principle Manual, and three Wiring Diagrams

1. Workshop Manual (WNHF-EN-00)
Format: PDF, 777 pages
Language: English
Table of Contents:
   GENERAL
      Precautions for Disassembling and Assembling
      Tightening
      Painting
      Bleeding Air
      Pressure Release Procedure
      Preparation
   MAINTENANCE STANDARD
      Body
      Front Attachment
   BODY
      Cab
      Counterweight
      Center Hinge
      Engine
      Radiator Assembly
      Hydraulic Oil Tank
      Fuel Tank
      Pump Device
      Control Valve
      Pilot Valve
      Unloader Valve
      Combination Valve
      Flow Regulator Valve
      Cooling Fan System
      Exhaust Filter
      Ride Control Valve and Accumulator
      Battery Disconnect Switch
   TRAVEL SYSTEM
      Tire
      Drive Unit
      Axle
      Propeller Shaft
      Brake Valve
      Steering Pilot Valve
      Steering Valve
      Steering Cylinder
      Secondary Steering Device
      Reducing Valve
      Stop Valve
      Main Pressure Block
      Priority Hammer Valve and Shuttle Valve
      Check Valve
   FRONT ATTACHMENT
      Front Attachment
      Cylinder
   SERVICE MANUAL REVISION REQUEST FORM

2. Troubleshooting Manual (TTNHF-EN-00(20180126))
Format: PDF, 464 pages
Language: English
Table of Contents:
   SAFETY
      Recognize Safety Information
      Understand Signal Words
      Follow Safety Instructions
      Prepare for Emergencies
      Wear Protective Clothing
      Protect Against Noise
      Inspect Machine
      General Precautions for Cab
      Use Handrails and Steps
      Never Ride Attachment
      Adjust Operators Seat
      Ensure Safety Before Rising from or Leaving Operators Seat
      Fasten Your Seat Belt
      Move and Operate Machine Safely
      Handle Starting Aids Safely
      Operate Only from Operators Seat
      Jump Starting
      Investigate Job Site Beforehand
      Equipment of Head Guard, ROPS, FOPS
      Provide Signals for Jobs Involving Multiple Machines
      Keep Riders Off Machine
      Drive Safely
      Drive Machine Safely (Work Site)
      Drive Safely with Bucket Loaded
      Drive on Snow Safely
      Travel on Public Roads Safely
      Avoid Injury from Rollaway Accidents
      Avoid Accidents from Backing Up and Turning
      Avoid Positioning Bucket or Attachment Over Anyone
      Avoid Tipping
      Never Undercut a High Bank
      Dig with Caution
      Perform Truck Loading Safely
      Avoid Power Lines
      Precautions for Operation
      Precautions for Lightning
      Object Handling
      Protect Against Flying Debris
      Park Machine Safely
      Store Attachments Safely
      Transport Safely
      Handle Fluids SafelyAvoid Fires
      Practice Safe Maintenance
      Warn Others of Service Work
      Support Machine Properly
      Stay Clear of Moving Parts
      Support Maintenance Properly
      Prevent Parts from Flying
      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
      Notes for Muffler Filter
      Precautions for Communication Terminal
      Precaution for Communication Terminal Equipment
      Before Returning the Machine to the Customer
   GROUP CONTENTS
   OPERATIONAL PERFORMANCE TEST
      Introduction
      Standard
      Engine Test
      Machine Performance Test
      Component Test
   TROUBLESHOOTING
      Diagnosing Procedure
      Monitor
      e-Service
      Component Layout
      Troubleshooting A
      Troubleshooting B
      Air Conditioner

3. Operational Principle Manual (TONHF-EN-00)
Format: PDF, 457 pages
Language: English
Table of Contents:
   GENERAL
      Specifications
      Component Layout
      Component Specifications
   SYSTEM
      Controller
      Control System
      ECM System
      Hydraulic System
      Electrical System
   COMPONENT OPERATION
      Pump Device
      Control Valve
      Cooling Fan System
      Steering Pilot Valve
      Steering Valve
      Pilot Valve
      Charging Circuit
      Drive Unit
      Axle
      Brake Valve
      Others
   SERVICE MANUAL REVISION REQUEST FORM

4. Wiring Diagram (TTNHF-EN-00_Circuit)
Format: PDF, 17 pages
Language: English
Table of Contents:
   HYDRAULIC CIRCUIT DIAGRAM
   FAN, PILOT AND BRAKE CIRCUIT DIAGRAM
   ELECTRICAL CONNECTION DIAGRAM (1/4)
   ELECTRICAL CONNECTION DIAGRAM (2/4)
   ELECTRICAL CONNECTION DIAGRAM (3/4)
   ELECTRICAL CONNECTION DIAGRAM (4/4)
   FRONT CHASSIS WIRING DIAGRAM
   REAR CHASSIS WIRING DIAGRAM (1/3)
   REAR CHASSIS WIRING DIAGRAM (2/3)
   REAR CHASSIS WIRING DIAGRAM (3/3)
   FLOOR WIRING DIAGRAM (REAR CONSOLE) (1/3)
   FLOOR WIRING DIAGRAM (REAR CONSOLE) (2/3)
   FLOOR WIRING DIAGRAM (REAR CONSOLE) (3/3)
   FLOOR WIRING DIAGRAM (SIDE CONSOLE)
   FLOOR WIRING DIAGRAM (FRONT CONSOLE)
   FLOOR WIRING DIAGRAM (WHEEL STEERING)
   EMERGENCY STEERING LAYOUT and WIRING DIAGRAM

5. Wiring Diagram (TTNHF-EN-00_Circuit(20140912))
Format: PDF, 18 pages
Language: English
Table of Contents:
   HYDRAULIC CIRCUIT DIAGRAM
   FAN, PILOT AND BRAKE CIRCUIT DIAGRAM
   ELECTRICAL CONNECTION DIAGRAM (1/4)
   ELECTRICAL CONNECTION DIAGRAM (2/4)
   ELECTRICAL CONNECTION DIAGRAM (3/4)
   ELECTRICAL CONNECTION DIAGRAM (4/4)
   FRONT CHASSIS WIRING DIAGRAM
   REAR CHASSIS WIRING DIAGRAM (1/3)
   REAR CHASSIS WIRING DIAGRAM (2/3)
   REAR CHASSIS WIRING DIAGRAM (3/3)
   FLOOR WIRING DIAGRAM (REAR CONSOLE) (1/3)
   FLOOR WIRING DIAGRAM (REAR CONSOLE) (2/3)
   FLOOR WIRING DIAGRAM (REAR CONSOLE) (3/3)
   FLOOR WIRING DIAGRAM (SIDE CONSOLE)
   FLOOR WIRING DIAGRAM (FRONT CONSOLE)
   FLOOR WIRING DIAGRAM (WHEEL STEERING)
   EMERGENCY STEERING LAYOUT and WIRING DIAGRAM
   AXLE OIL COOLER WIRING DIAGRAM (OPTIONAL)

6. Wiring Diagram (E-STOP+ZW550-5B)
Format: PDF, 3 pages
Language: English