The Yanmar YM155D is a versatile machine designed for a range of applications. This diesel-powered unit features a liquid-cooled engine and a manual transmission, likely offering multiple forward and reverse gears. Its robust construction and engineering are intended to provide reliability and efficient operation. While specific production years are not detailed, the YM155D is built to handle demanding tasks, potentially including those requiring a hydraulic system for implement control and a power take-off for various attachments. This comprehensive Service Repair Manual provides detailed information for the Yanmar YM155D. It covers all areas of repair with step-by-step instructions and includes routine maintenance procedures, lubrication points, and filter replacement guidance. The manual also contains essential technical specifications, safety guidelines, and visual aids such as wiring diagrams and pictorial instructions to assist owners, mechanics, and technicians. Its purpose is to ensure the proper maintenance and repair of the vehicle, facilitating its longevity and optimal performance.