The Hyster H006 series, encompassing the H135FT and H155FT models, represents a robust line of Class 5 Internal Combustion Engine Trucks designed for pneumatic tire applications. These trucks are engineered for reliability and performance in demanding industrial environments. Featuring a GM internal combustion engine that supports both gasoline and LPG fuel systems, they are built to provide consistent power and efficiency for material handling operations. The engineering quality of the Hyster H006 series ensures durability and operational excellence. This comprehensive Service Repair Workshop Manual provides detailed guidance for the maintenance and repair of your Hyster H006 series lift truck. It covers essential areas including engine specifications, transmission repair for both three-speed Poweshift and two-speed Powerhift systems, and detailed procedures for various components such as the mast, operator's cab, drive axle, and steering system. The manual also includes extensive information on electrical and hydraulic systems, brake system maintenance, and diagnostic troubleshooting, offering step-by-step instructions and diagrams to assist owners, mechanics, and technicians in keeping the vehicle in optimal working condition.