This service repair manual covers Clark forklift models CGC 20-30, CGP 20-30, and CDP 20-30. These forklifts are engineered for demanding industrial environments, offering robust performance and reliability for tasks including maintaining, assembly, disassembly, and servicing. The comprehensive design of these machines ensures efficient operation and longevity in various operational settings. This manual provides detailed information essential for the upkeep and repair of your Clark forklift. It covers a wide range of topics, including safe maintenance practices, periodic servicing, and in-depth technical procedures for engine systems, transmissions, hydraulic circuits, electrical components, and chassis elements. With clear diagrams, illustrations, and schemes, this guide is an indispensable resource for owners, technicians, and mechanics to ensure optimal performance and longevity of the equipment.