This manual covers the Komatsu WA500-3 Wheel Loader, designed for demanding operational tasks. Engineered for reliability and efficiency, this machine offers robust performance across various applications. Its advanced features and durable construction ensure it meets the rigorous requirements of heavy-duty work, providing a dependable solution for material handling and site management. The purpose of this comprehensive Operation & Maintenance Manual is to provide essential information for the safe and effective use of the WA500-3 Wheel Loader. It details procedures for operation, handling, lubrication, maintenance, checking, and adjustment. This guide includes crucial data on wear parts, lubricants, fuel, coolant, standard tightening torques, and periodic replacement of safety-critical components, alongside a maintenance schedule chart and troubleshooting guidance, ensuring optimal performance and longevity of the equipment.