The Hitachi ZX250LC-3 is a robust construction machine designed for demanding excavation and material handling tasks. Featuring a powerful Cummins QSB6.7 diesel engine, this tracked excavator delivers approximately 160-170 HP, supported by a hydrostatic transmission for efficient power delivery. Its substantial operating weight, ranging from 25,000 to 27,000 kg, underscores its stability and capability in challenging environments. The ZX250LC-3 is engineered for reliability and performance, making it a valuable asset for a wide array of construction projects. This Service Repair Workshop Manual provides comprehensive guidance for the Hitachi ZX250LC-3. It covers essential maintenance procedures, including detailed information on engine oil and hydraulic oil capacities and filter replacement intervals, alongside technical specifications for the engine, hydrostatic transmission, and open-center load sensing hydraulic system. Troubleshooting guidance and safety protocols are also included to assist owners, mechanics, and technicians in maintaining the optimal performance and longevity of the equipment.