This manual pertains to the Hyundai HL770-7A Wheel Loader, a robust piece of equipment engineered for demanding operational environments. Designed for reliability and efficiency, this wheel loader represents a significant advancement in its class, built to meet the rigorous requirements of construction, material handling, and other heavy-duty applications. Its construction emphasizes durability and performance, ensuring consistent operation and longevity in challenging conditions. The purpose of this comprehensive Factory Service Repair Manual is to provide detailed guidance for the maintenance and repair of the Hyundai HL770-7A Wheel Loader. It covers essential areas including engine specifications, powertrain, brake system, steering system, work equipment, and the electrical system. Within these sections, you will find information on structure and function, operational checks, troubleshooting, adjustments, and disassembly/assembly procedures. This manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure optimal performance and longevity of their equipment.