This manual covers the BUKH DV10 and DV20 series diesel engines, including variants such as the DV10ME and DV20ME. These engines are known for their robust construction and reliability, making them suitable for various demanding applications. As these are older and less common models, access to comprehensive technical documentation is crucial for their continued operation and maintenance. This factory workshop service repair manual provides essential information for understanding and servicing these engines. The purpose of this manual is to serve as a definitive guide for BUKH technicians and owners. It encompasses detailed maintenance procedures, troubleshooting guidance, and technical specifications necessary for the upkeep and repair of the DV10 and DV20 engine series. The manual includes information on service schedules, fluid capacities, and part replacement, ensuring that the engines can be maintained to factory standards. A companion Parts Manual is also included to aid in identifying and sourcing necessary components.