This manual covers the Komatsu WA600-3 and WA600-3D (TBG SPEC.) Wheel Loaders, serial numbers 50001 and up. These machines are engineered for demanding industrial and construction applications, built with Komatsu's renowned quality and reliability. Their robust design and advanced features ensure efficient performance and productivity in various operational environments, making them a trusted choice for heavy-duty material handling. This comprehensive documentation includes Service Repair, Field Assembly, and Operation & Maintenance Manuals in English. It provides detailed information on maintaining, assembling, disassembling, and servicing the equipment. Key topics cover general information, structure and function, testing and adjusting, disassembly and assembly procedures, maintenance standards, troubleshooting, safe and effective operation, lubrication, and parts installation. This manual is an essential resource for owners, mechanics, and technicians to ensure the optimal performance, longevity, and safe operation of their Komatsu Wheel Loaders.