This workshop service repair manual covers the HYUNDAI HDF 15-5 and HDF 18-5 Forklift Trucks, powered by the 2.2L 4-cylinder inline, 4-stroke, water-cooled, OHC, KUBOTA V2203-M diesel engine. These robust forklift trucks are engineered for demanding industrial environments, offering reliability and efficient operation. This manual provides comprehensive information to ensure optimal performance and longevity of your equipment. The purpose of this manual is to serve as a definitive guide for maintaining and repairing the specified HYUNDAI forklift truck models. It includes detailed sections on general information, precautions, specifications, periodic maintenance, special tools, tightening torques, lubrication, and step-by-step procedures for structure removal and installation. Furthermore, it covers in-depth system overhauls, including the powertrain, brakes, steering, and hydraulic systems, along with electrical system diagnostics and troubleshooting procedures, all supported by clear illustrations and diagrams.