This workshop service repair manual covers the Clark CMP 15, CMP 18, CMP 20, CMP 25, and CMP 30 Forklift models. These forklifts are engineered for demanding industrial applications, offering robust performance and reliability. The manual details various engine options, including LPG (4G63/4G64) and Diesel (4TN88/4TNE94) variants, and covers essential systems such as the Hydratork-Transmission, brake system, steering, and hydraulics. This comprehensive English-language manual, presented in a searchable and printable format, is designed to assist owners, mechanics, and technicians. It provides detailed information on scheduled maintenance, safe operating procedures, troubleshooting, and overhaul instructions for major components including the engine, transmission, steering unit, and hydraulic systems. The manual also includes electrical system diagrams and covers aspects of the upright assembly, wheels, tires, and fuel systems, ensuring thorough maintenance and repair capabilities.