This manual covers the Caterpillar GC Series Forklift, encompassing models such as the GC35K, GC40K, GC40K STR, GC45K SWB, GC45K, GC55K, GC55K STR, GC60K, GC70K, and GC70K STR. Designed for industrial material handling, these forklifts are engineered for robust performance and reliability. They feature gasoline (LPG/Petrol) engines and automatic transmissions, offering efficient operation for a wide range of lifting applications, with capacities ranging from 3,500 to 7,000 lbs. This Factory Service Repair Workshop Manual provides comprehensive guidance for maintaining and repairing your Caterpillar GC Series Forklift. It includes detailed step-by-step repair instructions and diagrams to assist owners, mechanics, and technicians. The manual covers essential areas such as scheduled maintenance, fluid capacities, and troubleshooting, ensuring the longevity and optimal performance of your equipment.