This service manual covers the Hitachi EX100-3 Excavator, designed for robust performance and reliability in demanding construction environments. Engineered with precision, the EX100-3 offers exceptional digging power and operational efficiency, making it a trusted choice for a wide range of excavation tasks. Its durable construction and advanced hydraulic systems ensure consistent productivity and longevity, reflecting Hitachi's commitment to quality and innovation in heavy machinery. This comprehensive manual provides detailed information essential for the maintenance, repair, and troubleshooting of your Hitachi EX100-3 Excavator. It includes step-by-step procedures, technical specifications, diagnostic guides, and safety precautions. By following the instructions within this manual, owners and technicians can ensure optimal performance, prevent potential issues, and extend the service life of the equipment.