This manual covers the Komatsu WA470-5H and WA480-5H Wheel Loaders, designed for robust performance in demanding work environments. These machines are engineered for reliability and efficiency, offering powerful operation and durable construction. Serial number coverage begins with WA470H50051 and WA480H50051, ensuring comprehensive support for these models. This Factory Service/Repair/Workshop Manual provides detailed information for maintenance, service, diagnosis, and repair procedures. It includes step-by-step instructions, exploded views, and diagrams to assist technicians and mechanics. The manual covers safety, general information, structure and function, testing and adjusting, disassembly and assembly, and an appendix, offering complete guidance for all repair procedures at a dealer/mechanic level.