The Hyundai HL770-9 is a robust Wheel Loader from the 9 Series, engineered for demanding operational environments. This machine is built upon a foundation of reliability and performance, featuring a powerful Cummins QSL8.9 turbocharged diesel engine delivering approximately 265 horsepower. Its design emphasizes efficiency and durability, making it a capable tool for various construction, material handling, and industrial applications. The HL770-9 is equipped with a 4-speed powershift automatic transmission and all-wheel drive with limited-slip differentials, ensuring optimal traction and maneuverability across diverse terrains. This comprehensive Service & Repair Workshop Manual provides detailed guidance for the maintenance and repair of the Hyundai HL770-9 Wheel Loader. It covers essential areas including routine servicing, component replacement, troubleshooting procedures, and technical specifications. With hundreds of pages of detailed instructions, photographs, and diagrams, this manual is an indispensable resource for owners, technicians, and mechanics. It facilitates proper upkeep, ensures operational longevity, and supports efficient problem diagnosis and resolution for the vehicle.