This workshop service repair manual covers the Clark CMP 40, CMP 45, and CMP 50S forklift models. These industrial machines are engineered for reliability and efficient operation in demanding work environments. The manual provides comprehensive information to ensure these forklifts perform optimally, leveraging their robust design and advanced components, including Perkins diesel engines and transaxle drivetrains. This English-language service repair manual, presented in a searchable and printable format, offers detailed guidance for maintenance and repair. It encompasses safe maintenance practices, periodic servicing schedules, and in-depth procedures for the engine, cooling system, transaxle, electrical systems, wheels and tires, brake system, steer system, hydraulic system, uprights, and counterweight. The manual includes troubleshooting steps, disassembly and assembly instructions, and technical specifications, making it an indispensable resource for owners, mechanics, and technicians.