The Hitachi ZAXIS ZX210N is a robust Crawler Excavator from the N Series, engineered for demanding construction and earthmoving applications. This machine is powered by a 6.69 L diesel engine producing 116 kW at 2000 rpm, with a torque of 577 Nm at 1400 rpm, meeting EPA Tier 3 / EU Stage IIIA emission standards. Its hydrostatic transmission and all-wheel drive system ensure reliable power delivery and traction across various terrains. With an operating weight of 22,300 kg and a transport length of 9.96 meters, the ZX210N is designed for efficiency and performance, featuring a maximum digging depth of 6.60 meters and a bucket capacity of 0.97 m³. This Service Repair Manual provides comprehensive guidance for the Hitachi ZAXIS ZX210N Crawler Excavator. It covers essential maintenance procedures, including fluid capacities for engine oil (21 L), hydraulic oil (260 L), coolant (35 L), and fuel (400 L), as well as undercarriage details. The manual also includes technical specifications for the powertrain, hydraulics, and attachments, along with troubleshooting information and safety guidelines. Its purpose is to assist owners, mechanics, and technicians in maintaining the optimal performance, reliability, and longevity of the ZX210N through detailed instructions and technical data.