This manual covers the HITACHI EX135UR EXCAVATOR, a robust machine designed for demanding construction and earthmoving applications. Engineered for exceptional performance and durability, the EX135UR offers advanced hydraulic systems and a comfortable operator environment, making it a reliable choice for professionals seeking efficiency and power on the job site. Its thoughtful design prioritizes operator ease of use and long-term operational integrity. The purpose of this comprehensive workshop service and repair manual is to provide detailed guidance for the maintenance, troubleshooting, and repair of the HITACHI EX135UR EXCAVATOR. It includes essential technical specifications, step-by-step procedures, diagnostic information, and safety precautions. This resource is invaluable for technicians and mechanics to ensure the optimal performance, longevity, and safe operation of the equipment.