This service repair workshop manual provides comprehensive instructions for the Hitachi EX100-3 Excavator. Designed for professional mechanics worldwide, this manual details the engineering and reliability inherent in the EX100-3 model. It serves as an essential resource for understanding and maintaining the operational integrity of this robust excavation equipment. The scope of this manual covers all major service and repair procedures necessary for the Hitachi EX100-3 Excavator. It is intended to empower owners, mechanics, and technicians with the knowledge required for effective maintenance and repair. By following the detailed guidance within these pages, users can ensure the continued optimal performance and longevity of their equipment.