This service repair shop manual covers the Komatsu electric forklift models FB20H-2R, FB20HG-2R (Series 4022), FB25H-2R, and FB30H-2R (Series 4023). These forklifts are engineered for efficient material handling, lifting, and transporting goods within diverse industrial settings. Designed for reliable operation, they are suitable for both indoor and outdoor use under standard industrial conditions, powered by an electric source. This comprehensive manual provides essential information for maintaining and repairing your Komatsu forklift. It includes detailed sections on technical operating information, checks and adjustments, removal and installation of parts, mast systems, and the electrical system. Adhering to the routine preventive maintenance schedules outlined within this guide will ensure the optimal performance and longevity of your equipment.