This workshop service repair manual provides comprehensive information for the Wheel Loader. Engineered for demanding operational environments, the HL770 is recognized for its robust construction and reliable performance in various construction and material handling applications. This manual is designed to support the upkeep and efficient functioning of your equipment. This English-language manual details essential procedures for maintenance, repair, and troubleshooting. It covers critical systems including the engine, power train, brake, steering, work equipment, and electrical systems. Owners, mechanics, and technicians will find detailed specifications, operational checks, disassembly and assembly instructions, and diagnostic guidance to ensure the optimal performance and longevity of the Wheel Loader.