This Service Repair Manual provides comprehensive information for the hydraulic excavators. Designed for efficiency and robust performance in various operational environments, these models represent a commitment to quality engineering. Their advanced hydraulic systems and durable construction ensure reliability for demanding tasks. This manual serves as an essential resource for maintaining and repairing the excavators. It covers critical areas including safety instructions, identification, hydraulic and drive systems, engine service, electrical systems, and troubleshooting. With detailed procedures for assembly, disassembly, servicing, and diagnostics, this 490-page English manual empowers owners and technicians to keep these excavators in optimal working condition.