The Komatsu PC25-1 Series hydraulic excavator is a robust piece of equipment designed for demanding operational environments. Engineered for reliability and performance, this model represents Komatsu's commitment to quality in construction machinery. Its hydraulic drive system provides efficient power and precise control, making it suitable for a wide range of excavation and material handling tasks. While specific production years are dependent on serial number, units from the PC25-1 Series (serial numbers 1001 and up) are built to deliver consistent results in professional applications. This comprehensive Workshop Service Repair Manual provides essential information for the maintenance and repair of the Komatsu PC25-1 hydraulic excavator. It covers detailed procedures, technical specifications, and troubleshooting guidance to ensure optimal performance and longevity of the equipment. Owners, operators, and service technicians will find this manual an indispensable resource for understanding and servicing the hydraulic drive system, engine components, and other critical systems. Following the guidelines within this manual will help maintain the integrity and operational efficiency of your Komatsu excavator.