This manual covers the HITACHI 280LC-3 HYDRAULIC EXCAVATOR. It is designed to provide comprehensive information for the operation, maintenance, and repair of this heavy machinery. The HITACHI 280LC-3 is engineered for demanding construction and industrial applications, offering robust performance and reliability. Its advanced hydraulic system and durable construction ensure efficient operation in challenging environments, making it a valuable asset for any project. This workshop service repair manual serves as an essential guide for technicians and mechanics. It details critical maintenance procedures, troubleshooting techniques, and technical specifications necessary to keep the HITACHI 280LC-3 operating at peak performance. By following the instructions within this manual, owners and service professionals can ensure the longevity and optimal functionality of the excavator, minimizing downtime and maximizing productivity.