This Service Repair Workshop Manual provides comprehensive information for the Komatsu WA470-5H and WA480-5H wheel loaders, part of the 5H Series. These machines are engineered for robust performance and reliability in demanding operational environments, featuring powerful turbocharged, intercooled, direct injection diesel engines. The WA470-5H delivers 208 HP, while the WA480-5H offers 236 HP, both equipped with Komatsu's advanced Hydro-Shift Transmission for efficient power delivery. Their substantial operating weights and carefully designed dimensions ensure stability and capability across a range of applications. The purpose of this manual is to serve as an authoritative guide for maintaining and repairing these Komatsu wheel loaders. It covers essential areas including safety procedures, general information, detailed explanations of structure and function, testing and adjustment protocols, disassembly and assembly instructions, and an appendix for further reference. Owners, mechanics, and technicians will find the detailed procedures and technical specifications invaluable for ensuring optimal performance, longevity, and safe operation of the WA470-5H and WA480-5H models.