This workshop manual pertains to the Volvo BM 400 Buster, a robust and versatile tractor renowned for its reliability and straightforward engineering, designed for agricultural, forestry, and general utility applications. As part of Volvo BM's esteemed lineage of machinery, the 400 Buster embodies the brand's commitment to durability and performance. Its design prioritizes functionality and ease of maintenance, making it a dependable workhorse for demanding tasks. This manual serves as an essential guide for understanding and preserving the operational integrity of this well-regarded model.

The scope of this comprehensive service and repair manual is extensive, covering critical systems such as the engine, clutch, gearbox, rear axles, differential, power take-off (PTO), brakes, steering mechanism, and hydraulic system. It provides detailed construction and function descriptions, along with instructions for major service, repair work, and component overhauls. Owners, mechanics, and technicians will find invaluable information including technical specifications, lubrication charts, fluid recommendations, filter part numbers, and crucial torque specifications. The manual is designed to facilitate thorough maintenance, accurate diagnostics, and effective troubleshooting, ensuring the Volvo BM 400 Buster remains in optimal working condition throughout its service life.