This manual covers the Hitachi EX230LC-5 Excavator, a robust piece of heavy machinery designed for demanding operational environments. Engineered for reliability and performance, the EX230LC-5 is built to handle a wide range of construction and excavation tasks. Its advanced design and powerful ISUZU A-6BG1TQA, A-6BG1 TQA01, and HINO H07D engines ensure efficient operation and durability, making it a trusted asset for professionals in the field. The purpose of this comprehensive service repair workshop manual is to provide detailed instructions for the maintenance, diagnosis, and repair of the Hitachi EX230LC-5 Excavator. It includes essential information such as general specifications, system overviews, component operation, troubleshooting guides, and detailed diagrams for hydraulic and electrical circuits. This manual is an indispensable resource for owners, mechanics, and technicians, offering the same precise information used by authorized service departments to ensure the vehicle remains in optimal working condition.