This workshop service/repair manual covers the Kubota 03-M-E2B engine, an internal combustion, liquid-cooled, diesel engine with a turbocharged aspiration system. This engine is specifically designed for application in Hyundai Fork Lift Trucks HDF15-18 5 Series. The manual details the engineering and components essential for maintaining the reliability and performance of this robust engine, ensuring its continued operation in demanding industrial environments. This comprehensive manual provides detailed guidance for owners, mechanics, and technicians. It includes essential information on engine identification, general precautions, maintenance checklists, special tools, and in-depth procedures for the engine body, cooling system, fuel system, electrical system, and turbocharger system. Furthermore, it offers extensive troubleshooting guidance, servicing specifications, tightening torques, and instructions for checking, disassembling, and servicing engine components, ensuring proper upkeep and repair.