This Service Repair Manual covers the Komatsu WA500-3H, a robust wheel loader designed for demanding operational environments. Known for its engineering quality and reliability, the WA500-3H is built to deliver consistent performance in heavy-duty applications. This manual is intended for serial numbers WA500H20051 and up, providing comprehensive information for maintaining and repairing this powerful machine. The purpose of this English-language manual is to equip owners, mechanics, and technicians with the knowledge necessary for effective vehicle upkeep. It details essential procedures across various sections, including general information, structure and function, testing, adjusting, troubleshooting, disassembly, assembly, maintenance standards, and other critical topics. By following the guidelines within this manual, users can ensure optimal performance, longevity, and safety of their Komatsu WA500-3H.