This Service Repair Manual covers the Hyster F006 series forklifts, specifically the H135XL and H155XL models. These industrial equipment forklifts are engineered for lifting and moving materials in demanding industrial and warehouse environments. Hyster forklifts are recognized for their robust construction and reliable performance, designed to meet the rigorous operational needs of various industries. This manual provides comprehensive technical information, including detailed troubleshooting guidance for identifying and resolving operational issues, and extensive maintenance information for routine servicing and upkeep. It is designed to assist both do-it-yourself individuals and experienced mechanics in performing complete disassembly, maintenance, and repair of the machine, ensuring optimal operational efficiency and longevity.