This manual covers the Hitachi EX100-3 Excavator, designed for robust performance in demanding work environments. Engineered for reliability and efficiency, the EX100-3 offers advanced features that enhance productivity and operator comfort. Its durable construction and powerful performance make it a trusted choice for various construction and excavation tasks, ensuring consistent operation and longevity. The purpose of this service repair manual is to provide comprehensive guidance for the maintenance, repair, and troubleshooting of your Hitachi EX100-3 Excavator. It details essential procedures, technical specifications, and safety precautions necessary for optimal vehicle upkeep. This resource is invaluable for owners, technicians, and mechanics seeking to ensure the continued performance and extend the service life of their equipment.