2003 Komatsu PC40MR-2/PC50MR-2 Hydraulic Excavator Operation and Maintenance Manual • P/N SEAM055301T, dated October 2003
Komatsu Models Covered & Key Technical Specifications
Models: PC40MR-2, PC40MRx-2, PC50MR-2, PC50MRx-2
Model Years: 2003
Serial Numbers: PC40MR-2 8001 and up, PC40MRx-2 8001 and up, PC50MR-2 5001 and up, PC50MRx-2 5001 and up
Technical Data:
- Engine displacement: 2.189 liters (133.5 cu in)
- Rated power output: 29.4 kW (39 hp) at 2,350 rpm
- Peak hydraulic relief pressure: 17.2–21.6 MPa (2,490–2,980 PSI)
- Travel speed range: 2.8–4.6 km/h (1.7–2.9 mph)
- Continuous swing velocity: 9.0 rpm
- Bucket capacity range: 0.14–0.16 m³ (0.18–0.21 cu/yd)
Komatsu Manual Features & Content Preview
2003 Komatsu PC40MR-2 and PC50MR-2 Operation Manual
This official 265-page OEM publication serves as the primary reference for the initial release of the Galeo-series compact hydraulic excavators. Whether you are running routine maintenance or bringing a new operator up to speed, this guide provides the exact factory specifications needed for the job.
Key Manual Details:
- Applicable Models: PC40MR-2, PC40MRx-2, PC50MR-2, and PC50MRx-2 (Serial numbers 8001+ and 5001+).
- Instant Download: Your PDF file is available immediately after checkout.
- Shop-Ready Format: Print the exact pages you need for the floor, keeping your digital original clean and grease-free.
- Publication: P/N SEAM055301T (Issued October 2003).
Operational Documentation & Controls
Understanding the exact control layouts and emergency procedures is critical for any crew. This manual documents essential pre-start inspections, safe machine operation techniques for slope travel, and demolition work protocols. Safety always comes first on the job site. Always review the included hazard guidelines and 17 safety label diagrams before operating or servicing heavy machinery. You will also find detailed instructions for emergency egress via the cabin window and the correct sequence for floor tilting.
Technical Specifications & Maintenance References
Stop guessing fluid capacities or tracing wires blindly. This guide outlines the exact operating speeds, relief pressure values, and maintenance routines for your equipment. Key technical highlights include:
- Fluid Management: Precise engine oil capacity checks and coolant levels, detailing the exact dipstick and sub-tank indicators.
- Electrical Systems: A comprehensive fuse capacity circuit chart, listing specific amperage ratings for components like the engine stop solenoid and monitor panel.
- Performance Diagnostics: Outlines the travel speed boost monitor logic, ensuring optimal track performance across varying terrain conditions.
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