This manual covers the Clark SF20-30D/L/G and CMP20-30D/L/G forklifts, part of the CMP230 series. These industrial vehicles are engineered for reliability and performance in demanding operational environments. The manual details various engine options, including Gasoline, LPG, 4TNE94-SF, and Diesel Engine-Tier2 (4TNV88/94L), along with their respective transaxle drivetrains. The robust design of these forklifts ensures efficient material handling and long service life. The purpose of this Factory Service/Repair/Workshop Manual (SM-711) is to provide comprehensive guidance for maintaining, servicing, diagnosing, and repairing these Clark forklift models. It includes detailed information on steering systems, brake systems, hydraulic systems, mast maintenance, and electrical circuit diagrams. With step-by-step instructions, highly detailed exploded pictures, and diagrams, this manual is an essential resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of their equipment.