This service repair manual covers CLARK GEX16, GEX18, GEX20s (4 Wheel) and GTX16, GTX18, GTX20s (3 Wheel) forklifts. These industrial machines are engineered for demanding operational environments, offering robust construction and reliable performance. The design emphasizes efficiency and durability, making them suitable for a wide range of material handling applications where consistent power and precise control are essential. This comprehensive manual provides detailed information for the maintenance and repair of your CLARK forklift. It includes extensive coverage of periodic maintenance schedules, electrical systems, electric motors, drive axles, brake systems, steering systems for both GEX and GTX models, hydraulic systems, tilt cylinders, uprights, and the counterweight chassis. With clear instructions and technical specifications, this guide is an invaluable resource for owners, technicians, and mechanics seeking to ensure the optimal performance and longevity of their equipment.