All-Inclusive Factory Service Technical manual for Hitachi Compact Excavators Models Zaxis 55U-5B.

This manuals will assist you in diagnosing, repairing, and troubleshooting for your compact excavator.
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Covered Models:
   Zaxis 55U-5B

The manual comprises 3 documents, including the Workshop Manual, Technical Manual, and Wiring Diagram

1. Workshop Manual (WAEJ90-EN-00)
Format: PDF, 396 pages
Language: English
Table of Contents:
   1 Precautions for Disassembling and Assembling
      Tightening
      Painting
      Bleeding Air
      Releasing Pressure
      Preparation
   MAINTENANCE STANDARD
      Upperstructure
      Undercarriage
      Front Attachment
   UPPERSTRUCTURE
      Cab
      Counterweight
      Pump Device
      Control Valve
      Swing Device
      Pilot Valve
      Solenoid Valve
      Revolution Sensing Valve
      Auxiliary Flow Rate Selector Valve
      Muffler Filter
   UNDERCARRIAGE
      Swing Bearing
      Travel Device
      Center Joint
      Track Adjuster
      Front Idler
      Upper and Lower Rollers
      Track
      Blade Cylinder
   FRONT ATTACHMENT
      Front Attachment
      Cylinder

2. Technical Manual (TAEJ90-EN-00)
Format: PDF, 454 pages
Language: English
Table of Contents:
   GENERAL
      Specifications
      Component Layout
      Component Specifications
   SYSTEM
      Control System
      Hydraulic System
      Electrical System
   COMPONENT OPERATION
      Pump Device
      Revolution Sensing Valve
      Swing Device
      Control Valve
      Pilot Valve
      Travel Device
      Others (Upperstructure)
      Others (Undercarriage)
   OPERATIONAL PERFORMANCE TEST
      Introduction
      Standard
      Engine Test
      Machine Performance Test
      Component Test
      Adjustment
   TROUBLESHOOTING
      Diagnosing Procedure
      Monitor
      Troubleshooting A
      Troubleshooting B
      Air Conditioner

3. Wiring Diagram (TAEJ90-EN-00_Circuit)
Format: PDF, 10 pages
Language: English
Table of Contents:
   ELECTRICAL CIRCUIT DIAGRAM (STANDARD)
   ELECTRICAL CIRCUIT DIAGRAM (AIR CONDITIONER)(OPTIONAL)
   FLOOR HARNESS
   MAIN HARNESS
   LIGHT HARNESS
   CAB HARNESS (OPTIONAL)
   AIR CONDITIONER FLOOR HARNESS(OPTIONAL)
   HEATER HARNESS(OPTIONAL)
   AIR CONDITIONER COMPRESSOR HARNESS(OPTIONAL)
   HYDRAULIC CIRCUIT DIAGRAM