The Komatsu PC250LC-6 represents a robust and reliable excavator within the LC-6 Series, engineered for demanding construction and earthmoving applications. Powered by a Komatsu SAA6D102E-1 Diesel engine, this machine delivers 140 HP (104 kW) at 2000 rpm, meeting Tier II emission standards. Its hydrostatic transmission, featuring two forward and two reverse gears, ensures precise control and efficient operation. With an operating weight of 24,600 kg and substantial dimensions including a crawler length of 9,525 mm and a width of 2,990 mm, the PC250LC-6 is built for stability and performance in challenging environments. This Service and Repair Manual provides comprehensive guidance for the Komatsu PC250LC-6. It covers essential maintenance procedures, including fluid capacities for engine oil, hydraulic oil, coolant, and fuel, alongside detailed technical specifications and troubleshooting information. The manual is designed to assist owners, mechanics, and technicians in understanding, maintaining, and repairing the excavator to ensure optimal performance and longevity. All information is presented in English to facilitate clear communication and accurate execution of service tasks.