This manual covers the Volvo BM L120B Wheel Loader, designed for robust performance and reliability in demanding operational environments. It is intended for maintenance and parts identification, reflecting the engineering quality synonymous with Volvo BM equipment. This service parts catalogue manual is essential for understanding the intricate components and systems that ensure the L120B's efficient operation across various applications. The scope of this English-language manual is comprehensive, detailing critical aspects of the L120B. It includes extensive coverage of the engine, electrical systems, power transmission, brakes, steering, frame, and hydraulics, among other key areas. Furthermore, it provides specific information on extended lubrication points for the lift arm system. This resource is designed to assist owners, mechanics, and technicians in accurately identifying parts and performing necessary maintenance, ensuring the longevity and optimal functionality of the wheel loader.