This manual covers the Komatsu WA450-5L and WA480-5L Wheel Loaders, serial numbers WA450-5L A36001 and UP, and WA480-5L A37001 and UP. These robust machines are engineered for demanding work environments, offering exceptional performance and reliability. Their design prioritizes operator comfort and operational efficiency, making them a valuable asset for various construction and material handling applications. The quality of Komatsu engineering is evident in the durable construction and advanced systems that ensure consistent productivity. The purpose of this comprehensive service shop repair manual is to provide detailed information for the maintenance and repair of your Komatsu wheel loader. It includes essential sections on general servicing, preventative maintenance, and troubleshooting procedures. Within its 1244 pages, you will find in-depth coverage of engine systems, powertrain, hydraulics, electrical components, chassis, and operator station. This manual is an indispensable resource for owners, mechanics, and technicians, offering clear instructions, exploded diagrams, and illustrations to facilitate accurate and efficient upkeep.