The Hyster J006 series forklifts, including the H135FT and H155FT models, represent robust industrial material handling equipment designed for demanding operational environments. These machines are engineered for reliability and efficiency in various industrial applications. The H135FT model offers a lifting capacity of 13,500 lbs, while the H155FT model is capable of lifting up to 15,500 lbs, making them suitable for heavy-duty tasks. Their internal combustion engines and automatic transmissions are built to provide consistent performance. This Workshop Service Repair Manual provides comprehensive guidance for the maintenance, repair, and technical understanding of the Hyster J006 series forklifts. It covers essential areas such as detailed maintenance procedures, troubleshooting common issues, and technical specifications relevant to the H135FT and H155FT models. The manual is an indispensable resource for owners, technicians, and mechanics, ensuring the continued optimal performance and longevity of the equipment through accurate and detailed information.