This manual covers the Komatsu WA430-5 Wheel Loader, designed for demanding operational environments. Known for its robust engineering and reliability, this model features a powerful Cummins QSB6.7 engine, a sophisticated Komatsu Advanced Transmission with Lock-up, and an approximate operating weight of 23,000 kg. Its construction is optimized for efficiency and durability, making it a dependable choice for heavy-duty material handling tasks. The purpose of this comprehensive Workshop Service Repair Manual is to provide detailed information for the maintenance and repair of the Komatsu WA430-5 Wheel Loader, serial numbers 60001 and up. It includes essential sections on general information, structure and function, routine maintenance procedures, testing and adjusting, and disassembly and assembly. This manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance and longevity of their equipment.