The Komatsu WA400-5H Wheel Loader is a robust piece of heavy equipment designed for demanding applications in material handling, construction, and earthmoving. Engineered with a powerful diesel engine, this machine exemplifies Komatsu's commitment to reliability and performance in challenging environments. Its construction and operational capabilities make it a valuable asset for professionals requiring efficient and dependable machinery for large-scale projects. This Complete Workshop Service Repair Manual provides comprehensive guidance for the Komatsu WA400-5H Wheel Loader. Covering all repair procedures from A to Z, it is designed to assist owners and technicians in maintaining and repairing the vehicle effectively. The manual includes easy-to-follow, step-by-step instructions with accompanying images, empowering users to perform their own repairs and save on service costs. Its scope ensures all aspects of the vehicle's maintenance and service needs are addressed.