The Hyundai HL757-7A Wheel Loader is a robust piece of heavy equipment engineered for demanding loading and material handling operations. This model features a powerful 6.7-liter Cummins QSB6.7 diesel engine delivering 160 horsepower, paired with an Automatic PowerShift transmission and 4WD for optimal performance in all-weather conditions. Its substantial approximate weight of 22,400 kg underscores its construction for durability and reliability in challenging environments. This comprehensive manual serves as an essential resource for maintaining and operating the Hyundai HL757-7A Wheel Loader. It covers critical aspects including detailed maintenance procedures, troubleshooting guidance, technical specifications, and safety protocols. By providing in-depth information on topics such as recommended engine oil (API CI-4 or higher) and oil capacity (24 Liters), this guide empowers owners, mechanics, and technicians to ensure the continued efficiency, longevity, and safe operation of the equipment.