This Service Shop Repair Manual covers the Komatsu WA320-3 Wheel Loader, serial numbers 50001 and up. Engineered for demanding applications, this robust machine is designed for maintenance, assembly, disassembly, and servicing. Its construction emphasizes reliability and performance, ensuring efficient operation in various work environments. The WA320-3 is a testament to Komatsu's commitment to quality, providing operators and owners with a dependable solution for their material handling needs. This comprehensive 845-page manual, presented in English, provides essential information for the upkeep and repair of your WA320-3 Wheel Loader. It includes complete step-by-step repair and servicing instructions, technical maintenance procedures, and detailed troubleshooting guidance. With actual photo illustrations, diagrams, and schemes, this manual facilitates a thorough understanding of the machine's structure and function. It also contains sections on maintenance standards, disassembly and assembly, testing and adjusting, and references the 108 Series Engine Shop Manual for engine-specific details.