This Service Repair Manual provides comprehensive information for the Hyundai HL770A HL770 Wheel Loader, a robust piece of construction equipment designed for demanding operational environments. Engineered for reliability and performance, the Hyundai Wheel Loader series is built to tackle a wide range of tasks efficiently. This manual is specifically intended for the repair and maintenance of this model, ensuring its continued optimal function through detailed guidance and technical specifications. The scope of this manual covers all essential aspects required for effective maintenance and repair. It includes detailed sections on safety hints, general specifications, engine structure and function, and in-depth procedures for the power train, brake, steering, and work equipment systems. Furthermore, it addresses the electrical system with component locations, circuit diagrams, and troubleshooting guides. The manual features detailed substeps, numbered instructions, and numerous illustrations to facilitate clear understanding and execution of repair procedures, making it an indispensable resource for owners, mechanics, and technicians.