This manual covers the Clark CGC 20-30, CGP 20-30, and CDP 20-30 forklifts, part of the C365/P365 series. These industrial vehicles are engineered for reliable performance in demanding workshop service and repair environments. They are designed with robust components, including options for Diesel, 4G64 GAS/LPG/CNG, and GM engines, supported by comprehensive fuel and air induction systems. The transmission options include the TA-30 Standard Transaxle and Hydraulic Transmission, ensuring versatility for various operational needs. This comprehensive workshop service and repair manual provides detailed information essential for maintaining and repairing your Clark forklift. It includes high-quality diagrams and instructions covering all major systems, such as the engine, transmission, electrical system, chassis, body, and hydraulics. The manual details procedures for safe maintenance, periodic servicing, and troubleshooting, empowering owners and technicians to perform necessary work efficiently and cost-effectively, ultimately saving on service repair and maintenance costs.