The Hyundai HLF15/18(C)-5 Forklift Truck is a robust industrial machine designed for efficient material handling. Built by Hyundai Heavy Industries, a globally recognized manufacturer, this forklift series represents a commitment to engineering quality and reliability. The HLF15 and HLF18 models, capable of lifting 1500 kg (3300 lbs) and 1800 kg (4000 lbs) respectively, are powered by LPG engines featuring IMPCO LPG Kits, with specific service information provided for both non-emission and EPA Tier II compliant variants. These forklifts are engineered for demanding operational environments, offering dependable performance for a wide range of applications. This comprehensive Service Repair Manual provides detailed guidance for the maintenance, assembly, disassembly, servicing, repair, and troubleshooting of the Hyundai HLF15/18(C)-5 Forklift Truck. It covers all essential systems, including the general overview with safety and specifications, unit function, power train, brake, steering, hydraulic, electric, and mast systems. Additionally, it includes specific coverage for the IMPCO LPG engine system. The manual is designed to empower owner-operators, maintenance technicians, and repair shops by offering in-depth technical information, step-by-step procedures, troubleshooting guides, and detailed illustrations, enabling users to maintain and repair the forklift effectively and efficiently.