This workshop service repair manual covers the Yanmar 2T72HLE, 2T75HLE, 3T72HLE, 3T75HLE, 2T90LE, 3T80LE, and 3T90LE series of diesel engines. These engines are designed for reliability and efficiency, featuring inline diesel configurations with 2 and 3 cylinder variants. They are liquid-cooled and utilize compression ignition, with a forced lubrication system. Engineered for diverse industrial, agricultural, and marine applications, these engines are built to perform within specified operating conditions.

This comprehensive manual provides essential information for the service and repair of your Yanmar diesel engine. It details maintenance procedures, including recommended oil types and capacities, as well as service intervals for routine upkeep. Technical specifications, troubleshooting guides, and operational details are included to assist owners, mechanics, and technicians in maintaining optimal performance and longevity of the engine.