Hitachi EX8, EX12, EX15, EX22, EX30 excavator technical manual

Product Information

Table of Contents

1. General Information

   • 1.1 Safety
   • 1.2 Introduction
   • 1.3 Specifications
   • 1.4 Machine Identification

2. Operating the Excavator

   • 2.1 Operating Controls
   • 2.2 Operating Procedures
   • 2.3 Tips for Efficient Operation
   • 2.4 Transportation and Towing

3. Routine Maintenance

   • 3.1 Maintenance Schedule
   • 3.2 Daily Checks and Maintenance
   • 3.3 Engine Maintenance
   • 3.4 Hydraulic System Maintenance
   • 3.5 Electrical System Maintenance
   • 3.6 Undercarriage Maintenance
   • 3.7 Swing Bearing and Gear Maintenance

4. Troubleshooting

   • 4.1 General Guidelines
   • 4.2 Engine Troubleshooting
   • 4.3 Hydraulic System Troubleshooting
   • 4.4 Electrical System Troubleshooting
   • 4.5 Undercarriage Troubleshooting

5. Engine

   • 5.1 Specifications
   • 5.2 Removal and Installation
   • 5.3 Disassembly, Inspection, and Reassembly
   • 5.4 Fuel System

6. Hydraulic System

   • 6.1 Specifications
   • 6.2 Hydraulic Circuit Diagram
   • 6.3 Pumps
   • 6.4 Valves
   • 6.5 Hydraulic Cylinders
   • 6.6 Swing Motor

7. Electrical System

   • 7.1 Specifications
   • 7.2 Electrical Circuit Diagram
   • 7.3 Batteries
   • 7.4 Alternator and Starter Motor
   • 7.5 Electrical Components

8. Undercarriage

   • 8.1 Track Assembly
   • 8.2 Idlers and Rollers
   • 8.3 Sprockets and Final Drives

9. Body, Frame, and Structure

   • 9.1 Upper Structure
   • 9.2 Boom, Arm, and Bucket
   • 9.3 Cabin

10. Attachments

    • 10.1 Buckets
    • 10.2 Hammers, Breakers, and Others

11. Service Tools and Special Tools

    • 11.1 Special Tools List
    • 11.2 Service Tool Usage

12. Index .

The Hitachi EX8, EX12, EX15, EX22, EX30 technical manual is a valuable resource for mechanics, technicians, and owners as it provides detailed information on technical specifications, maintenance procedures, troubleshooting, and assembly/disassembly instructions.

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