This workshop service repair manual covers Clark Forklift Trucks from the SF CMP D L SD SL series, including models SF35D, SF40D, SF45D, SF35L, SF40L, SF45L, CMP40D, CMP45D, CMP50SD, CMP40L, CMP45L, and CMP50SL. These robust machines are engineered for demanding industrial environments, offering reliability and efficiency in material handling operations. The forklifts are powered by a range of Perkins diesel engines (models 1004-4, 1004-42, 1104C-44) with displacements from 4.00L to 4.41L, or a GM 6-cylinder V6 LPG engine with a 4.30L displacement, paired with a Powershift Transmission. This comprehensive manual provides detailed information essential for the maintenance and repair of your Clark Forklift Truck. It includes extensive coverage of periodic maintenance, lubrication charts, engine tuning, troubleshooting analysis, and hydraulic and electrical wiring diagrams. Furthermore, the manual details procedures for all major systems, including the engine, powertrain, brakes, steering, and hydraulic systems, as well as special tools, specifications, tightening torques, and lifting operations. With over 1000 pages of content featuring exploded views, step-by-step procedures, pictures, and diagrams, this English-language manual is an indispensable resource for owners, mechanics, and technicians.