The Komatsu WA800 series, including the WA800-1 and WA800-2 variants, represents robust heavy machinery engineered for demanding operational environments. These loaders are powered by the formidable 8V170-1 (SA8V170-1) diesel engine, featuring an 8-cylinder V-type configuration with a displacement of 28.06 L. Designed for significant material handling tasks, the WA800-1 variant boasts an operating weight of approximately 46,000 kg and a bucket capacity ranging from 7.0 to 9.0 m³, with a rated load capacity of around 23,000 kg. Its substantial dimensions, including a length of approximately 10,965 mm with the bucket and a width over tires of about 3,510 mm, underscore its capacity for large-scale work. This comprehensive Shop Manual, provided in English, covers the Komatsu WA800-1 and WA800-2 loaders, along with the 8V170-1 Diesel Engine. It is an essential resource for understanding, maintaining, and repairing these machines. The manual details critical information such as engine specifications, transmission operation, fluid capacities for the engine, hydraulic system, and transmission, as well as recommended service intervals for oil changes and filter replacements. By providing detailed procedures, technical specifications, and maintenance guidelines, this manual serves to ensure the optimal performance, longevity, and safe operation of your Komatsu equipment.