This Service Repair Workshop Manual provides comprehensive documentation for the Hyundai HL780-7A Wheel Loader. Engineered for demanding operational environments, this machine embodies robust construction and reliable performance, making it a trusted asset for various heavy-duty applications. Its design prioritizes efficiency and durability, ensuring consistent productivity and a long service life for operators and businesses relying on its capabilities. This manual serves as an essential resource for maintaining and repairing the Hyundai HL780-7A Wheel Loader. It covers critical areas including general information, engine systems, power train, brake and steering systems, work equipment, and the electrical system. With detailed instructions, high-quality diagrams, and troubleshooting guidance, this manual is designed to assist both do-it-yourself enthusiasts and experienced mechanics in achieving accurate understanding and performing correct repairs, ultimately enhancing the quality of service and operational longevity of the equipment.