All-Inclusive Factory Service Technical manual for Hitachi Crawler Excavators Models EX120-5.

This manuals will assist you in diagnosing, repairing, troubleshooting, and operating for your crawler excavator.
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Covered Models:
   EX120-5

The manual comprises 6 documents, including the Workshop Manual, Troubleshooting Manual, Operational Principle Manual, two Operators Manuals, and Wiring Diagram

1. Workshop Manual (W155E01)
Format: PDF, 554 pages
Language: English
Table of Contents:
   GENERAL INFORMATION
      Precautions for Disassembling and Assembling
      Tightening Torque
   UPPERSTRUCTURE
      Cab
      Counterweight
      Main Frame
      Pump Device
      Control Valve
      Swing Device
      Pilot Valve
      Pilot Shut-Off Valve
      Shockless Valve
      Solenoid Valve
      Pilot Relief Valve Unit
   UNDERCARRIAGE
      Swing Bearing
      Travel Device
      Center Joint
      Track Adjuster
      Front Idler
      Upper and Lower Roller
      Track
   FRONT ATTACHMENT
      Front Attachment
      Cylinder
   ENGINE AND ACCESSORY
      General Introduction
      Maintenance
      Engine Assembly (Disassembly)
      Engine Assembly (inspection and Repair)
      Engine Assembly (Reassenbly)
      Lubricating System
      Cooling System
      Fuel Sistem
      Turbocharger
      Air Compressor
      Engine Electrials
      Troubleshooting
      Special Tool List
      Conversion Table

2. Troubleshooting Manual (TT155E02)
Format: PDF, 231 pages
Language: English
Table of Contents:
   OPERATIONAL PERFORMANCE TEST
      Introducution
      Engine Test
      Excavator Test
      Component Test
      Standard
   TROUBLESHOOTING
      Diagnosing Procedure
      Component Layout
      Troubleshooting A
      Troubleshooting B
      Troubleshooting C
      Electrical System Inspection
      Harness Check
   THE ATTACHED DIAGLAM LIST
      ELECTRICAL CIRCUIT DIAGRAM_1
      ELECTRICAL CIRCUIT DIAGRAM_2
      CONNECTORS_1
      CONNECTORS_2
      ENG. HARNESS
      CAB HARNESS
      RELAY HARNESS_1
      RELAY HARNESS_2
      A/C HARNESS_1
      A/C HARNESS_2

3. Operational Principle Manual (TO155E02)
Format: PDF, 128 pages
Language: English
Table of Contents:
   GENERAL
      Specifications
      Component Layout
   SYSTEM
      Control System
      Hydraulic System
      Electrical System
   COMPONENT OPERATION
      Pump Device
      Swing Device
      Control Valve
      Pilot Valve
      Travel Device
      Others (Upperstructure)
      Others (Undercarriage)

4. Operators Manual (EM1E813)
Format: PDF, 271 pages
Language: English
Table of Contents:
   CONTENTS OVERVIEW
   FRONT COVER
   INTRODUCTION
   INDEX
   MACHINE NUMBER
   SAFETY
   SAFETY SIGNS
   COMPONENTS NAME
   OPERATOR'S STATION
   BREAK-IN
   PRE-START INSPECTION
   OPERATING THE ENGINE
   DRIVING THE MACHINE
   OPERATING THE MACHINE
   TRANSPORTING
   MAINTENANCE
   STORAGE
   TROUBLESHOOTING
   SPECIFICATIONS
   OPTIONAL ATTACHMENTS AND DEVICES
   INDEX

5. Operators Manual (EM1E8NA21)
Format: PDF, 254 pages
Language: English

6. Wiring Diagram (T155E00cir)
Format: PDF, 10 pages
Language: English