This manual covers the Hyundai 35D-7E, 40D-7E, 45D-7AE, and 50D-7AE series of industrial forklift trucks. These diesel-powered machines are engineered for robust performance and reliability in demanding operational environments, offering lift capacities ranging from 3500kg to 5000kg. The '7E' and '7AE' designations signify refined designs and integrated technologies, ensuring efficient and precise material handling. Hyundai's commitment to quality is evident in the durable construction and advanced systems designed to minimize downtime and maximize productivity. This comprehensive Workshop Service Repair Manual provides detailed information for the maintenance, repair, and troubleshooting of your Hyundai forklift. It covers essential systems including the Power Train, Brake System, Steering System, Hydraulic System, Electric System, and Mast. Within these sections, you will find in-depth explanations of structure and function, operational checks, disassembly and assembly procedures, and extensive troubleshooting guides. The manual is designed to assist both amateur and professional technicians in executing routine maintenance, preventive measures, and complex repairs, ensuring the longevity and optimal performance of your equipment.