This workshop service repair manual covers Yanmar 3TNM74F, 3TNV74F, and 3TNV80F engines. These 3-cylinder diesel engines are part of the TNM/TNV series, designed for reliability and efficient operation. The manual provides comprehensive information for service and repair procedures, ensuring optimal performance and longevity of these internal combustion engines.

This English-language manual details every service and repair procedure, including maintenance guidelines, inspection schedules, and operating parameters. It is intended to assist owners, mechanics, and technicians in understanding and performing all necessary maintenance and repair tasks. The format ensures easy access to critical information for servicing these engines.