This manual pertains to the Hyundai HL780-3A Wheel Loader. Engineered for demanding operational environments, this model represents a commitment to robust performance and reliability. Its design focuses on delivering efficient power and precise control, making it a valuable asset for a wide range of construction and material handling tasks. Understanding the intricacies of this machine is key to maximizing its productivity and longevity. The purpose of this comprehensive Operating Manual is to provide owners and technicians with the essential information required for the correct operation, maintenance, and repair of the Hyundai HL780-3A Wheel Loader. It covers critical areas including general and component specifications, control devices, operating procedures, transportation guidelines, detailed maintenance instructions, and troubleshooting for various systems. Safety hints are integrated throughout, offering guidance for operation and maintenance to ensure safe and efficient use.