The Komatsu WA800-3LC Wheel Loader, designed for heavy-duty applications, represents a pinnacle of engineering and reliability. This robust machine, built for demanding operational environments, features a powerful Komatsu SAA6D170E-3 turbocharged, aftercooled diesel engine with a gross power of 518 hp and a net power of 475 hp. Its advanced transmission system, coupled with a substantial operating weight of 70,160 kg and a 10.0 m³ bucket capacity, ensures exceptional performance in material handling and construction tasks. The WA800-3LC is engineered for durability and efficiency, making it a trusted choice for large-scale projects. This comprehensive Service Shop Repair Manual in English provides essential information for maintaining and repairing the Komatsu WA800-3LC Wheel Loader. Covering critical areas such as general information, structure and function, testing, troubleshooting, disassembly, assembly, maintenance standards, and detailed specifications, this 931-page manual is an invaluable resource. It includes numerous diagrams, schemes, and actual photo illustrations to facilitate understanding and accurate execution of service procedures. This manual is designed to assist owners, mechanics, and technicians in ensuring the optimal performance and longevity of their equipment.