This manual covers the HITACHI EX25, EX35, and EX40 excavator models. These excavators are engineered for robust performance and reliability, offering efficient operation for a wide range of construction and earthmoving tasks. Their design prioritizes durability and ease of use, making them a valuable asset for professionals in the industry. The purpose of this comprehensive service manual is to provide detailed information essential for the maintenance, repair, and technical understanding of your HITACHI excavator. It includes crucial data for technicians and mechanics, covering operational procedures, diagnostic troubleshooting, technical specifications, and safety guidelines to ensure optimal performance and longevity of the equipment.