This manual covers the Komatsu WA250-3MC Wheel Loader, designed for robust performance and reliability in demanding work environments. Built with engineering excellence, this model is a testament to Komatsu's commitment to producing durable and efficient heavy machinery. Its intended usage spans various industrial and construction applications where powerful material handling capabilities are essential. The WA250-3MC is engineered for optimal productivity and longevity, making it a valuable asset for any operation. The purpose of this comprehensive Service Shop Repair Manual is to provide detailed guidance for the maintenance, repair, and troubleshooting of the Komatsu WA250-3MC Wheel Loader. It includes extensive information on general procedures, structural components, testing and adjustment, disassembly and assembly, maintenance standards, and more. With diagrams, real photo illustrations, and schemes, this manual offers step-by-step instructions designed to assist owners, mechanics, and technicians in keeping the vehicle in optimal working condition and ensuring its continued reliable operation.