The Hitachi ZX250K-3 Excavator is a robust and reliable machine engineered for demanding construction and excavation tasks. Featuring a powerful Isuzu AH-6HK1X turbocharged diesel engine with a displacement of 7.8 liters, it delivers impressive performance with a net power of 193 hp. Its hydrostatic travel drive system, with variable displacement axial piston motors, ensures efficient maneuverability, offering travel speeds up to 5.0 km/h. With an operating weight of 23,500 kg and a maximum digging depth of 6.7 meters, the ZX250K-3 is designed for productivity and durability in a wide range of professional applications. This Service Repair Workshop Manual provides comprehensive guidance for the Hitachi ZX250K-3 Excavator. It covers essential maintenance procedures, including engine oil and hydraulic oil capacity specifications, as well as service intervals for filter replacements. Detailed technical specifications for the engine, hydraulic system, and dimensions are included, alongside information on its digging capabilities and performance metrics. This manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain, troubleshoot, and repair the ZX250K-3, ensuring its optimal performance and longevity.