The Komatsu WA450-3 is a robust Wheel Loader designed for demanding operational environments. Featuring a powerful 11.04 L diesel engine delivering 206 kW (276 HP), it is engineered for reliability and efficiency in material handling tasks. Its advanced transmission system, Komatsu Advanced Transmission with Lock-up Torque Converter (K-ATLS), ensures smooth power delivery and optimal fuel economy. With a substantial operating weight of 23,200 kg and a standard bucket capacity of 4.0 m³, the WA450-3 is built to tackle heavy-duty applications, reflecting Komatsu's commitment to durable and high-performance construction equipment. This Service Repair Workshop Manual provides comprehensive guidance for the Komatsu WA450-3 Wheel Loader. It covers essential areas including detailed maintenance procedures, troubleshooting diagnostics, and technical specifications necessary for optimal performance and longevity. The manual is intended for owners, mechanics, and technicians, offering the information required to perform routine service, complex repairs, and in-depth system analysis. Its structured content ensures that users can efficiently maintain and repair the machine, maximizing uptime and operational effectiveness.