All-Inclusive Factory Service Technical manual for Hitachi Crawler Excavators Models Zaxis 280-5G and Zaxis 280LC-5G.

This manuals will assist you in diagnosing, repairing, troubleshooting, and operating for your crawler excavator.
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Covered Models:
   Zaxis 280-5G
   Zaxis 280LC-5G

The manual comprises 4 documents, including the Workshop Manual, Troubleshooting Manual, Operational Principle Manual, and Wiring Diagram

1. Workshop Manual (WDDF-EN-00(20161207))
Format: PDF, 500 pages
Language: English
Table of Contents:
   GENERAL
      Precautions for Disassembling and Assembling
      Tightening
      Painting
      Bleeding Air
      Pressure Release Procedure
      Preparation
   MAINTENANCE STANDARD
      Upperstructure
      Undercarriage
      Front Attachment
   UPPERSTRUCTURE
      Cab
      Counterweight
      Main Frame
      Engine
      Radiator Assembly
      Hydraulic Oil Tank
      Fuel Tank
      Pump Device
      Control Valve
      Swing Device
      Pilot Valve
      Solenoid Valve
      Signal Control Valve
   UNDERCARRIAGE
      Swing Bearing
      Travel Device
      Center Joint
      Track Adjuster
      Upper and Lower Rollers
      Track
   FRONT ATTACHMENT
      Front Attachment
      Cylinder

2. Troubleshooting Manual (TTDDF-EN-00(20150331))
Format: PDF, 438 pages
Language: English
Table of Contents:
   OPERATIONAL PERFORMANCE TEST
      Introduction
      Standard
      Engine Test
      Machine Performance Test
      Component Test
      Adjustment
   TROUBLESHOOTING
      Diagnosing Procedure
      Monitor
      e-Service
      Component Layout
      Troubleshooting A
      Troubleshooting B
      Air Conditioner

3. Operational Principle Manual (TODDF-EN-00(20161116))
Format: PDF, 346 pages
Language: English
Table of Contents:
   GENERAL
      Specifications
      Component Layout
      Component Specifications
   SYSTEM
      Controller
      Control System
      Hydraulic System
      Electrical System
   COMPONENT OPERATION
      Pump Device
      Swing Device
      Control Valve
      Pilot Valve
      Travel Device
      Signal Control Valve
      Others (Upperstructure)
      Others (Undercarriage)

4. Wiring Diagram (TTDDF-EN-00_Circuit(20151120))
Format: PDF, 13 pages
Language: English
Table of Contents:
   ELECTRICAL CIRCUIT DIAGRAM
   CONNECTORS
   CAB HARNESS
   ENGINE HARNESS
   PUMP HARNESS
   MONITOR HARNESS
   KEY-SWITCH HARNESS
   GSM (MOBILE COMMUNICATION TERMINAL) HARNESS
   SATELLITE COMMUNICATION HARNESS
   PILOT SHUT-OFF SOLENOID VALVE HARNESS
   REARVIEW CAMERA HARNESS
   HYDRAULIC CIRCUIT DIAGRAM (STANDARD)
   HYDRAULIC CIRCUIT DIAGRAM (OPTIONAL)