This manual pertains to the YM155D, a versatile diesel-powered vehicle designed for a range of applications. While specific production years are not detailed, the YM155D is engineered with a water-cooled diesel engine and a manual transmission, reflecting a focus on robust functionality and reliable performance. Its construction emphasizes durability and efficiency, making it a dependable choice for demanding tasks. This comprehensive English-language Full Service Repair Manual provides essential information for maintaining and repairing the YM155D. It covers detailed, step-by-step repair procedures, diagnostic protocols, and includes wiring diagrams. The manual also details service schedules and fluid capacities, supported by clear illustrations and a structured table of contents, ensuring that owners and technicians have the necessary resources for effective vehicle upkeep and troubleshooting.