This comprehensive Operation & Maintenance Manual is specifically designed for the Komatsu PC400-7, PC400LC-7, PC450-7, and PC450LC-7 hydraulic excavators. Covering serial numbers 50288 and up for the PC400-7 and PC400LC-7 models, and 20235 and up for the PC450-7 and PC450LC-7 models, this manual provides detailed instructions for all aspects of operating, maintaining, and troubleshooting these powerful machines.

The manual is divided into clear sections covering safety information, machine operation, maintenance procedures, and specifications. It includes detailed illustrations, diagrams, and step-by-step instructions that make it easy for operators and maintenance personnel to understand and follow.

Within the "Operation" section, you'll find information on machine view illustrations, detailed control and gauge descriptions, machine operations and controls, transportation, cold weather operation, long-term storage, and troubleshooting procedures. The "Maintenance" section covers maintenance information, service outlines, wear parts, lubricant and coolant specifications, tightening torque specifications, safety critical parts, maintenance schedules, and detailed maintenance procedures.

The manual also includes sections on specifications, attachments and options, recommended attachment operations, and a comprehensive index. This comprehensive resource allows you to confidently operate and maintain your Komatsu excavator, ensuring optimal performance and longevity.

The Komatsu PC400-7, PC400LC-7, PC450-7, and PC450LC-7 are a series of heavy-duty hydraulic excavators designed for demanding construction and mining applications. These models boast a high level of performance and efficiency, thanks to their powerful engines, sophisticated hydraulic systems, and robust construction. The PC400-7 and PC450-7 are standard configurations, while the PC400LC-7 and PC450LC-7 are long-reach versions ideal for reaching difficult areas or working over obstacles. The "7" designation denotes the seventh generation of this model line, incorporating significant improvements over previous iterations, including enhanced fuel efficiency, improved operator comfort, and advanced safety features. These machines are equipped with a variety of attachments, such as buckets, breakers, and grapples, allowing for versatility in a wide range of tasks.

The Komatsu PC400-7 and PC450-7 series are renowned for their durability and reliability, making them highly sought after by contractors and mining operators worldwide. Their robust construction, advanced hydraulic systems, and efficient engines ensure long-lasting performance in even the toughest working conditions. The spacious and ergonomically designed operator cab provides a comfortable and safe working environment, while the intuitive control layout allows for precise operation. These Komatsu excavators are also equipped with advanced safety features such as automatic shutdown systems, emergency stop buttons, and comprehensive warning systems, making operator safety a top priority. The combination of power, efficiency, reliability, and safety make these excavators an excellent choice for demanding applications in construction, mining, and other heavy industries.