1995-1997 Hitachi EX300-3 / EX300LC-3 Excavator Service Manual - 860 Pages - English

1995–1997 Hitachi EX300-3 and EX300LC-3 Service Manual

• Covers 1995–1997 Hitachi EX300-3 and EX300LC-3 excavator models, documenting hydraulic, engine, electrical, and structural systems for serial numbers 15K 07001 and higher
• Original OEM publication, providing technical specifications and system-level diagrams based on the Hitachi 140T-series technical documentation
• Contains over 100 system-level schematic diagrams, hydraulic pump operation charts, control valve circuits, and technical specification tables
• Delivered as a direct download the moment payment clears
• File resolution preserves fine text detail and complex hydraulic symbology across all 860 pages
• Indexed PDF search covers every chapter and appendix
• Stored against your account so you can retrieve it after a hard-drive loss
• This 1995 technical reference provides the foundation for the EX300-3 and EX300LC-3 hydraulic system adjustments and pressure settings

Technical System Walkthrough

This 1995–1997 Hitachi EX300-3 workshop manual documents the technical architecture of the EX300-3 and EX300LC-3. It details the interaction between the Isuzu 6SD1-TPD engine and the HPV145D hydraulic main pump system. Chapters describe the main relief valves, flow combiner configurations, and pilot-actuated control valve operation. The document includes circuit analysis for the swing device, travel motors, and accessory cooling modules. Safety notations for high-pressure fluid handling and welding protocols are included in the introductory section.

Specification and Data Preview

The what an OEM service publication covers includes detailed parameters for system testing and maintenance. Engine performance curves document the 161.8 kW power rating and the 833 N-m maximum torque specification. Hydraulic settings for the 29.4 MPa dig pressure are defined for standard operating modes. Electrical pinout data and fuel system parameters are provided in the component specifications.

• Hydraulic system capacity for the EX300 series is documented at 310 liters.
• Engine valve clearance is specified at 0.4 mm for both intake and exhaust valves.
• Overheat switch activation temperature is defined at 101 °C in the electrical equipment data.

This 860-page Hitachi EX300-3 and EX300LC-3 service manual contains the engineering data necessary for technical review and operational assessment of the 140T-series 1995–1997 excavator build.

Document Reference: 140T-01-01 / 140T-02-01