This Service Repair Manual covers the Clark GPX 35, GPX 40, and GPX 50E Forklift models. These industrial machines are engineered for demanding operational environments, offering robust performance and reliability in material handling tasks. Their design prioritizes efficiency and durability, making them a trusted choice for a wide range of applications requiring consistent and powerful lifting capabilities. This comprehensive manual provides detailed guidance for the maintenance, assembly, disassembly, and servicing of these Clark forklifts. It includes easy-to-follow, step-by-step repair instructions, diagnostic procedures, and technical specifications for all major systems, such as engines, cooling, fuel, transmission, electrical, drive axle, brakes, steering, and hydraulic systems. With the inclusion of diagrams, real photo illustrations, and schemes, this manual is an essential resource for owners, mechanics, and technicians to ensure optimal performance and longevity of their equipment.