Hitachi ZX400R-3, ZX400LCH-3 Excavator Service Manual

Product Overview

The Hitachi ZX400R-3 and ZX400LCH-3 Excavator Service Manual is an essential PDF resource, also applicable to the Hitachi ZW550 and ZW550-G Excavator models. This comprehensive guide provides detailed technical information critical for the maintenance, troubleshooting, and optimal performance of these advanced machines.
For further model specifications, visit the Excavator details page.

Key Features

• Detailed Service Manual (Troubleshooting): Vol. No. TT1JK-E, 626 Pages
• Comprehensive Operation Manual: Vol. No. TO1JK-E, 360 Pages
• Extensive Parts Catalog: 216 Pages
• Essential Circuit Diagrams: 9 Pages
• Language: English

Benefits

• Thorough Technical Coverage: Gain insights into specifications, component layout, and system details.
• Troubleshooting Guidance: Access diagnostics and procedural guides to resolve machinery issues efficiently.
• Operational Excellence: Utilize performance tests to ensure your excavator operates at peak efficiency.

Usage Recommendations

• Recommended for use during regular maintenance checks and repair sessions.
• Ideal for troubleshooting performance issues such as misalignment or component failure.
• Useful for training new operators and technicians on the machine’s capabilities.

Technical Manual Contents

The service manual encompasses various critical sections and groups, including:

• SECTION 1 GENERAL:
  • Specifications
  • Component Layout
  • Component Specifications
• SECTION 2 SYSTEM:
  • Controller
  • Control System
  • ECM System
  • Hydraulic System
  • Electrical System
• SECTION 3 COMPONENT OPERATION:
  • Pump Device
  • Swing Device
  • Control Valve
  • Pilot Valve
  • Travel Device
  • Signal Control Valve
  • Upperstructure and Undercarriage
• SECTION 4 OPERATIONAL PERFORMANCE TEST:
  • Standard Tests
  • Engine and Excavator Tests
  • Component Tests
• SECTION 5 TROUBLESHOOTING:
  • Diagnosing Procedures
  • Monitor Unit and Dr. ZX
  • e-Shovel
  • Electrical System Inspection

Additional Context

In cases where one side track does not rotate or rotates slowly, it is important to check the track sag for equal adjustment. A faulty pump control may cause machine mistracking accompanied by other performance issues. If such symptoms are observed, refer to troubleshooting sections A-3 and A-4 for detailed solutions. Faulty components may include the pilot valve, control valve, travel motor, or center joint, which require specific attention.