This manual covers the Mitsubishi FB-Series Electric Forklift Trucks, including models FB16NT, FB18NT, and FB20NT, with specific serial number ranges provided for context. These electric-powered forklifts are engineered for efficient material handling in diverse industrial settings, representing Mitsubishi's commitment to reliable and robust equipment. The series is designed with advanced AC electric motor systems and sophisticated controller features, ensuring optimal performance and operational efficiency. This comprehensive factory workshop service manual is an essential resource for technicians, maintenance staff, and service engineers. It provides detailed information on the removal and installation of powertrain components, disassembly and reassembly of transfer units, and specific procedures for axles, braking systems, steering systems, and hydraulic systems. Coverage extends to mast and fork assemblies, electrical components, and the intricate controller and motor systems, including diagnostics, troubleshooting, and repair procedures. The manual also includes periodic maintenance schedules, lubrication standards, and technical specifications to ensure accurate operation and longevity of the equipment.