This workshop service repair manual provides comprehensive guidance for the Hyundai HL780-7A Wheel Loader. Engineered for demanding operational environments, this machine embodies Hyundai's commitment to robust construction and reliable performance. Its design prioritizes efficiency and durability, making it a valuable asset for a wide range of construction and material handling tasks. This manual is tailored to ensure users can effectively operate and maintain this powerful piece of equipment. The purpose of this manual is to serve as a definitive resource for the maintenance and repair of the Hyundai HL780-7A Wheel Loader. It covers essential areas including safety instructions, detailed specifications, and in-depth explanations of the machine's structure and functions, encompassing hydraulic, electrical, and mechatronics systems. Furthermore, it provides systematic troubleshooting procedures, maintenance standards, and step-by-step disassembly and assembly instructions for all major components, empowering owners, technicians, and mechanics to ensure optimal performance and longevity of the vehicle.