The Hitachi ZX250LCH-3 is a robust excavator from the Dash-3 Series, engineered for demanding construction and earthmoving applications. Powered by an Isuzu AA-6BG1TRP engine with a displacement of 6.5 liters, it delivers approximately 125 kW (168 HP) of power, meeting EPA Tier 3 and EU Stage IIIa emission standards. This hydrostatic drive machine features two-speed travel motors and a substantial operating weight ranging from 23,400 to 24,600 kg, ensuring stability and performance on challenging terrain. With a bucket capacity of 0.8 to 1.7 m³ and a maximum digging depth of 6,630 mm, the ZX250LCH-3 is designed for efficiency and reliability in various operational environments. This comprehensive Service Repair Workshop Manual provides essential information for the maintenance and repair of the Hitachi ZX250LCH-3. It covers critical aspects including detailed engine specifications, hydrostatic transmission operation, and hydraulic system capacities, along with recommended service intervals for engine oil and hydraulic filters. The manual also includes technical specifications for dimensions, operating weight, and digging performance, offering guidance for owners, technicians, and mechanics. Its purpose is to ensure the optimal performance, longevity, and safe operation of the excavator through accurate and thorough technical documentation.