This manual covers the Hyundai 15L/18L/20L(G)-7M Forklift Truck, a robust and reliable machine designed for industrial material handling. The 7M Series represents a generation of Hyundai forklifts known for their durability and efficiency in demanding environments. These forklifts, with lifting capacities of 1500 kg, 1800 kg, and 2000 kg, are engineered for optimal power delivery and maneuverability, making them essential tools for various commercial applications. The purpose of this comprehensive service repair manual is to provide detailed information for the maintenance, assembly, disassembly, servicing, and troubleshooting of the Hyundai 7M Series Forklift Truck. It includes complete service and repair procedures, safety hints, technical specifications, and periodic replacement guidelines. Coverage extends to the power train, brake, steering, hydraulic, electric, and mast systems, offering step-by-step operations with detailed illustrations, diagrams, and photos to assist owners, mechanics, and technicians in maintaining the vehicle's peak performance and operational integrity.