This comprehensive Service Repair Manual provides in-depth information for maintaining, assembling, disassembling, and servicing your Komatsu PC300LC-6 and PC300HD-6 Hydraulic Excavators, covering serial numbers A80001 and up. The manual is your essential guide for ensuring optimal performance and longevity of your Komatsu excavator. It contains detailed diagrams, illustrations, and step-by-step instructions to assist you with every aspect of repairs, from routine maintenance to complex troubleshooting. Gain access to valuable information on hydraulic systems, engine components, electrical systems, and more, enabling you to confidently diagnose and resolve any issues. This manual is designed for mechanics, technicians, and operators who need a complete understanding of the Komatsu PC300LC-6 and PC300HD-6 Hydraulic Excavator.

The Komatsu PC300LC-6 and PC300HD-6 are powerful and versatile hydraulic excavators designed for demanding construction, mining, and demolition applications. These machines are renowned for their durability, efficiency, and operator comfort. The PC300LC-6 is the standard model, while the PC300HD-6 is a high-density version specifically engineered for heavy-duty operations. Both models feature a robust structure, a powerful Komatsu SAA6D107E-3 engine with a net power output of 184 kW (247 HP), and a sophisticated hydraulic system that delivers exceptional digging force and smooth control. The PC300LC-6 and PC300HD-6 are equipped with a large, spacious cab that provides excellent visibility, ergonomics, and operator comfort. The cab features adjustable seats, intuitive controls, and a comprehensive instrument panel for monitoring vital machine functions.

These excavators are designed for maximum productivity and safety. Advanced features include a Komatsu-developed hydraulic system that optimizes fuel consumption, reduces noise levels, and enhances performance. The PC300LC-6 and PC300HD-6 offer a range of optional attachments, including breakers, grapples, and buckets, enabling them to handle a wide variety of tasks. The Komatsu PC300LC-6 and PC300HD-6 are built to last, with a focus on long-term reliability and low operating costs. The design incorporates high-quality components and robust construction, resulting in exceptional durability and longevity. These machines are backed by Komatsu's comprehensive dealer network, providing access to parts, service, and technical support to ensure maximum uptime and productivity. The PC300LC-6 and PC300HD-6 are powerful and reliable excavators that deliver exceptional performance, operator comfort, and overall value in demanding applications.