This Service Repair Manual covers the Clark G127, GP127, Gl27E, and GPl27E series forklifts. These robust machines are engineered for demanding industrial environments, offering reliability and efficiency in a variety of material handling applications. With options for 1.6 and 2.0-liter engines and available in Gas or LPG fuel systems, these forklifts are designed for maintaining, assembly, disassembly, and servicing tasks. Their construction supports various tire types, including Cushion and Pneumatic, ensuring adaptability to different operational needs. This comprehensive manual provides essential information for the upkeep and repair of your Clark forklift. It details planned maintenance intervals, lubrication schedules, and safety operational checks. Diagnostic procedures for cooling and hydraulic systems, along with information on electrical components like the distributor, alternator, and starter, are thoroughly explained. The manual also includes guidance on hydraulic brakes, power steering systems, and features detailed hydraulic and electrical diagrams, alongside real photo illustrations and schemes to assist owners and technicians.