This manual covers the Hitachi EX220LC-5 Excavator, a robust machine designed for demanding operational environments. Featuring advanced engineering and a commitment to reliability, this excavator is built to provide exceptional performance and longevity. Its design incorporates efficient systems and durable components, making it a valuable asset for various construction and heavy-duty applications. The inclusion of ISUZU A-6BG1TQA, A-6BG1 TQA01, and HINO H07D engine types highlights its versatility and power. The purpose of this comprehensive service repair manual is to provide detailed information for the maintenance, repair, and troubleshooting of the Hitachi EX220LC-5 Excavator. It serves as an essential resource for both owners and professional technicians, offering step-by-step instructions, technical specifications, operational principles, and diagnostic procedures. The manual includes extensive coverage of the upper structure, undercarriage, front attachment, engine, and electrical and hydraulic systems, supported by numerous illustrations and diagrams to ensure clarity and accuracy in all service tasks.