This manual covers the HYSTER G006 series forklifts, including the H135XL and H155XL models. These robust machines are engineered for demanding industrial environments, offering reliable performance and efficient operation. With various engine options available, including the GM V6-4.3L, Perkins Diesel Engine 1104 (RE), and GM 3.0L, these forklifts are designed to meet diverse operational needs. Their electronic controlled LPG/gasoline fuel systems ensure optimized power delivery and fuel economy. This comprehensive Service Repair and Parts Manual provides detailed information essential for maintaining and servicing your HYSTER forklift. It includes procedures for scheduled maintenance, troubleshooting guidance for ECM diagnostics, and in-depth coverage of critical systems such as cooling, steering, brakes, hydraulics, and masts. Electrical system components, including the alternator, starter, instrument panel, and ignition systems, are also thoroughly detailed. This manual is an indispensable resource for owners, mechanics, and technicians to ensure the longevity and optimal performance of their equipment.