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

Comprehensive service manual for Hitachi EX300-3 and EX300LC-3 excavators, covering operation, maintenance, and repair procedures. Includes schematics and part numbers.

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Document Details

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Document Number / Seller:
30406 / Walter Lee
File Size:
57.96 MB
File Type:
PDF
Language:
English
Pages:
860
Printable:
Yes
Category:
Excavator
Last updated / verified
Dec 30, 2025

Models Covered & Key Technical Specifications

Hitachi EX300-3, EX300LC-3 (140T-01-01) - 1995-1997

This detailed workshop manual is your essential guide to understanding and maintaining your Hitachi EX300-3 / EX300LC-3.

  • Design Package Size: 57.9552 MB provides comprehensive coverage of all systems.
  • Advanced Native Resolution: 1200 dpi resolution ensures clarity in all diagrams and schematics.
  • Calibrated Threaded Fastener Data: Torque specifications are meticulously documented for all critical fasteners.
  • Documented Alignment Specs: Precise alignment parameters are detailed for key components, ensuring optimal performance.
  • Prescribed Thermal Limits: Operational temperature ranges are clearly defined to prevent overheating issues.
  • Engineered Net Mass: The precise weight of the excavator is provided, aiding in transport and operational planning.

Professional Workshop Service Manual & Technical Specifications

Hitachi EX300-3, EX300LC-3 Excavator Service & Workshop Manual: PDF Repair Guide

Unit-Designations: EX300-3, EX300LC-3 // Unit-Designations: Excavator / Hydraulic Logic // Unit-Designations: Technical Specifications.

Metric Rating Calibration-Data
Operating Weight 28,600 kg (63,100 lb) 29,300 kg (64,600 lb)
Arm Length 3.20 m (10 ft 6 inch) 3.20 m (10 ft 6 inch)
Swing Speed 12 min-1 12 min-1
Ground Pressure 59 kPa (0.60 kgf/cm²) 54 kPa (0.56 kgf/cm²)

Maintenance hierarchies are structured into the following major areas:

  • General Information: Provides an overview of the excavator's basic components and specifications.
  • Fuel and Lubricants: Details service refill capacities for all fluids and recommended lubricants.
  • Interchangeability: Covers component interchangeability between different models.
  • Machine Numbers: Information on identifying serial and model numbers.
  • Components: Breakdown of major systems including engine, hydraulics, and electrical equipment.

The documentation addresses the operation, maintenance, and repair of the Hitachi EX300-3 and EX300LC-3 excavators. Assembly instructions are detailed for various sub-assemblies within the hydraulic and electrical systems. Hydraulic schematics are included for clarity of the hydraulic circuit. Steering component information is provided for the travel motor. Inspection guidelines are provided for key components to ensure longevity and proper function. Safely requiring proper maintenance, this manual ensures your equipment operates efficiently.

This manual documents torque specifications for critical components to ensure proper cyclic stress resistance.

FAQ

What does the **exact** assembly sequence detail? keyboard_arrow_down

115 N·m of torque is required for the final drive mounting bolts to ensure proper cyclic stress resistance.

Reference the **specific** service interval parameters. keyboard_arrow_down

100 hours is the recommended interval for checking the swing motor oil level.

What are the **designated** system architecture specifications? keyboard_arrow_down

The hydraulic system operates at a maximum pressure of 34.3 MPa (350 kgf/cm²) for safe and efficient operation.

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Reviews (3)

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This manual has been a lifesaver for servicing the EX300-3. The detailed troubleshooting guidelines are especially helpful!
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Rated 4 out of 5 stars
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New
The layout of the manual makes it easy to find what I need quickly. Downloading was a breeze, and the support team was very responsive!