This Service Repair Workshop Manual covers the Clark CMP 40, CMP 45, and CMP 50S forklifts, part of the CMP450 series. These industrial vehicles are engineered for demanding material handling applications, emphasizing robust construction and operational reliability. While specific production years are not detailed, the manual addresses the core engineering principles and components that define these models' performance in various work environments. The purpose of this manual is to provide comprehensive guidance for the maintenance and repair of your Clark forklift. It details essential procedures, including safe maintenance practices, and covers critical systems such as the cooling, electrical, braking, steering, and hydraulic systems, as well as uprights and counterweights. Technical specifications and information on wheels and tires are also included, equipping owners, mechanics, and technicians with the knowledge necessary to ensure optimal performance and longevity of the equipment.