The Komatsu WA500-3H Wheel Loader is a robust and reliable machine designed for demanding operational environments. Featuring a powerful Komatsu SAA6D140E-3 engine delivering 300 kW (402 hp) and a Komatsu Advanced Transmission System (K-ATSS), this loader offers efficient power and control. Its substantial operating weight of 30,500 kg and a standard bucket capacity of 5.0 m³ make it suitable for heavy-duty material handling tasks. The articulated steering system, with a 40-degree articulation angle, ensures excellent maneuverability on job sites. This model, covering serial numbers WA500H20051 and up, exemplifies Komatsu's commitment to engineering excellence and operational efficiency. This comprehensive Factory Service/Repair/Workshop Manual provides essential information for the maintenance and repair of the Komatsu WA500-3H Wheel Loader. It covers all repair procedures, including detailed step-by-step instructions and highly detailed exploded diagrams and pictures to aid in understanding. The manual includes comprehensive diagnostic procedures for troubleshooting, detailed information on lubrication points, and specifications for engine oil and hydraulic tank capacities. Intended for owners and mechanics, this manual is an indispensable resource for ensuring the longevity and optimal performance of the WA500-3H, facilitating efficient upkeep and repair.