The Clark CQ 20/25/30 D/L forklift series represents robust engineering designed for efficient material handling operations. These forklifts are built for reliability and performance, offering various engine options including Diesel, LPG/GAS (4G64), and LPG (MI-07 Tier 3) to suit diverse operational needs. The specific model variant CQ230 exemplifies the advanced design and quality associated with the Clark brand, ensuring dependable service in demanding industrial environments. This comprehensive Service Repair Manual provides essential information for the maintenance, assembly, disassembly, and servicing of the Clark CQ 20/25/30 D/L forklifts. It covers a wide range of critical systems, including periodic service, engine details for all variants, cooling, fuel, LPG, air induction, exhaust, transaxle, ignition, electrical systems, wheels, tires, brakes, steering, hydraulics, tilt cylinders, uprights, and chassis. With detailed diagrams, real photo illustrations, and schemes, this English-language manual is an indispensable resource for owners, mechanics, and technicians aiming to keep their equipment in optimal working condition.