This workshop service repair manual covers the Mitsubishi FG35 and FG40 Forklift Trucks, designed for industrial applications with nominal lifting capacities of 3500 lbs (1588 kg) and 4000 lbs (1814 kg) respectively. These robust machines are powered by a GM 4.3L (G6) Gasoline engine and are also available with Liquefied Petroleum Gas (LPG) fuel systems. The FG series forklifts are engineered for reliability and efficiency, featuring both manual and power shift transmissions, advanced hydraulic systems, and durable mast and fork assemblies. This manual provides comprehensive information to ensure the optimal performance and longevity of your Mitsubishi forklift. The purpose of this manual is to provide detailed technical information, diagnostic procedures, and repair instructions for the Mitsubishi FG35 and FG40 Forklift Trucks. It covers a wide range of systems, including the cooling, electrical, powertrain, brake, steering, and hydraulic systems, as well as the chassis and mast. Specific sections are dedicated to the GM 4.3L gasoline engine, including overhaul and component repair, and the LPG fuel system, offering troubleshooting and adjustment guidance. This resource is invaluable for do-it-yourselfers, independent repair shops, and fleet maintenance personnel seeking to perform routine maintenance, complex repairs, and in-depth diagnostics, ultimately reducing service costs and maximizing operational uptime.