This manual covers the Hitachi Zaxis 250 LCN 3, a robust construction machine designed for demanding tasks. Engineered with precision, this 3 Series model features a powerful diesel engine with Common Rail Direct Injection and a hydrostatic transmission, ensuring efficient operation and reliable performance in various work environments. Its substantial operating weight of approximately 25,000 kg underscores its capability for heavy-duty applications. The purpose of this comprehensive workshop service repair manual is to provide essential information for the maintenance, repair, and technical understanding of the Hitachi Zaxis 250 LCN 3. It details critical procedures, technical specifications, and troubleshooting guidance necessary for owners, technicians, and mechanics to ensure optimal functionality and longevity of the equipment. Key areas covered include engine and hydraulic system specifics, maintenance schedules, and operational parameters, all presented in English.