This workshop service repair manual covers the Clark TMX Series and EPX Series forklifts, specifically detailing models TMX 12, TMX 13, TMX 15, TMX 15s, TMX 17, TMX 18, TMX 20, TMX 20x, TMX 25, EPX 16, and EPX 18. These vehicles are designed for various industrial applications and operate on 36V or 48V electrical systems, featuring AC dual motor drive systems with Class 'F' insulation and robust traction systems. The engineering of these forklifts emphasizes reliability and efficient operation, making them a dependable choice for material handling needs. This comprehensive manual provides detailed instructions and technical specifications essential for maintaining and repairing your Clark forklift. It covers critical areas such as periodic and planned maintenance programs, including tightening procedures, safe lifting and blocking, battery service, electrical systems, hydraulic components, and chassis elements like brakes and steering. Furthermore, it offers in-depth troubleshooting guidance for control systems, along with schematic electric, electrical, and hydraulic circuit diagrams. The manual's well-structured content and high-definition diagrams are designed to assist owners, mechanics, and technicians in ensuring optimal performance and longevity of their equipment.