This Service Repair Manual covers the Hyundai 35D-7E, 40D-7E, 45D-7E, and 50D-7AE Forklift Truck models. These diesel-powered material handling machines are designed for robust performance in various industrial applications. Built by Hyundai Heavy Industries, a globally recognized manufacturer of heavy equipment, these forklifts are known for their engineering quality and reliability. The 7E and 7AE series represent specific generations of these vehicles, offering advanced features and updated designs to meet the demands of the material handling industry. With lifting capacities ranging from approximately 3500 to 5000 lbs, these forklifts are engineered for efficient operation and durability. This comprehensive English-language Service Repair Manual is designed to provide owners, maintenance technicians, and mechanics with the essential information needed to maintain and repair their Hyundai forklift trucks. It offers detailed instructions, high-quality diagrams, and troubleshooting guides covering all major systems, including the engine, powertrain, brakes, steering, hydraulics, electrical systems, and mast. The manual facilitates periodic maintenance, operational checks, adjustments, and in-depth repairs such as component removal, installation, disassembly, and assembly. Its structured approach ensures users can effectively diagnose issues and perform necessary servicing to keep their equipment operating optimally.