This manual covers the Hyundai 7E Series diesel-powered forklifts, including the 20D-7E, 25D-7E, 30D-7E, and 33D-7E models. These industrial machines are engineered for reliable performance in demanding material handling environments, offering lifting capacities ranging from 2000 kg to 3300 kg. They feature robust diesel engines, automatic torque converter transmissions, and power steering for efficient operation. The design prioritizes operator safety with features such as an overhead guard, seatbelt, and tilt steering wheel, ensuring productivity and dependability in various applications. The purpose of this comprehensive Service & Repair Workshop Manual is to provide detailed guidance for the maintenance, repair, and technical understanding of your Hyundai forklift. It encompasses essential information on engine specifications, transmission systems, lubrication points, filter replacement schedules, and brake system details. This manual equips owners, technicians, and mechanics with the necessary procedures, technical data, and troubleshooting advice to ensure optimal performance, longevity, and safe operation of the 7E Series forklifts.