This Service Shop Repair Manual covers the KOMATSU WA320-3 Wheel Loader, serial numbers 50001 and up. Engineered for demanding tasks, this robust machine is designed for maintenance, assembly, disassembly, and servicing, embodying KOMATSU's commitment to reliability and operational efficiency. Its advanced S6D108 engine, detailed in the accompanying 108 Series Engine Shop Manual, further enhances its performance capabilities for a wide range of industrial applications. This comprehensive 845-page English language manual provides detailed guidance for the proper upkeep and repair of your WA320-3 Wheel Loader. It includes essential sections covering general information, structure and function, testing and adjusting, disassembly and assembly, and maintenance standards. This resource is invaluable for owners, mechanics, and technicians seeking to ensure the longevity and optimal performance of their equipment through accurate procedures and technical specifications.