The Komatsu WA200-5H and WA200PT-5H loaders, part of the 5 Series, represent robust and reliable equipment designed for demanding operational environments. These machines are powered by a Komatsu SAA6D102E-2 turbocharged and intercooled diesel engine, delivering 114 HP and featuring a water-cooled system. Equipped with the Komatsu Advanced Transmission with Lock-up (K-ATLS) and electronic shift control, they offer efficient power transfer through 4 forward and 4 reverse gears. With an approximate operating weight of 11,770 kg and a standard bucket capacity of 1.7 m³, these loaders are engineered for versatility and performance in various construction and material handling applications. This Service Repair Workshop Manual provides comprehensive guidance for the Komatsu WA200-5H and WA200PT-5H loaders, covering serial numbers WA200-5H (H50051 and up) and WA200PT-5H (H60051 and up). The manual details essential information including general overview, structure, function, maintenance standards, testing and adjusting procedures, disassembly and assembly instructions, and other critical operational data. It is designed to assist owners, mechanics, and technicians in performing routine maintenance, troubleshooting, and repairs, ensuring the continued optimal performance and longevity of the equipment.