This workshop service repair manual covers the Komatsu WA600-3 and WA600-3D (TBG SPEC.) Avance wheel loaders, with serial numbers 50001 and up. These diesel-powered machines are engineered for robust performance and reliability in demanding operational environments. The torque converter transmission, a key feature of the TBG SPEC. models, ensures efficient power delivery for heavy-duty tasks. This comprehensive English-language manual provides detailed information essential for the maintenance and repair of your Komatsu wheel loader. It includes coverage on general information, structure and function, testing and adjusting, disassembly and assembly procedures, and maintenance standards. By following the guidelines within this manual, owners and technicians can effectively maintain the vehicle's optimal condition and ensure its longevity.