The Komatsu PC250-6 and PC250LC-6 represent robust and reliable excavators engineered for demanding operational environments. These machines are built with a focus on durability and performance, featuring a powerful SA6D102E-1 diesel engine that delivers 114 kW of net power and substantial torque. Their hydrostatic transmission with variable speed control and two travel speed settings, along with an operating weight ranging from 23,300 to 24,800 kg, make them versatile for a wide array of construction and earthmoving tasks. The design prioritizes efficiency and operator productivity, ensuring consistent output across various applications. This comprehensive manual serves as an essential resource for the operation and maintenance of your Komatsu excavator. It covers critical aspects including detailed maintenance schedules, such as engine oil changes every 250 hours and hydraulic oil changes every 2000 hours, along with fluid capacities for engine oil, hydraulic tank, and coolant. Technical specifications, troubleshooting guidance, and safety protocols are thoroughly explained to assist owners, mechanics, and technicians in keeping the equipment in optimal working condition, ensuring longevity and peak performance throughout its service life.