The RTV900, produced from 2004 to 2010, represents the first generation of a robust utility vehicle designed for demanding tasks. Featuring a liquid-cooled, 898 cc diesel engine with 21.0 horsepower, it offers a reliable and powerful performance. Its hydrostatic transmission (HST) and 4WD system, complemented by front and rear lockable differentials, ensure excellent traction and maneuverability in various terrains. With a substantial cargo bed capacity of 500 kg and a towing capacity of 700 kg, the RTV900 is engineered for utility, efficiency, and durability in challenging work environments. This comprehensive English service manual provides detailed information crucial for the maintenance and repair of the RTV900. It covers essential areas including engine specifications, lubrication requirements for both the engine and transmission, and recommended service intervals. Additionally, the manual delves into technical specifications for dimensions, electrical systems, wheels and tires, and the fuel system. By offering complete factory procedures, this manual serves as an indispensable resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of their RTV900.