This comprehensive service manual covers the Hitachi EX25, EX35, and EX40 excavator models. Designed for robust performance and reliability in demanding work environments, these excavators are engineered to deliver exceptional power and efficiency. Their construction emphasizes durability and ease of operation, making them suitable for a wide range of construction and excavation tasks. This manual provides in-depth information to ensure these machines operate at their peak potential. The purpose of this manual is to serve as the definitive guide for maintaining, servicing, and repairing your Hitachi excavator. It contains detailed procedures, technical specifications, troubleshooting guides, and safety instructions essential for owners, technicians, and mechanics. By following the information within these pages, you can effectively perform routine maintenance, diagnose issues, and complete repairs, thereby extending the lifespan and ensuring the optimal performance of your EX25, EX35, or EX40 excavator.