Extractor fan with wear indicator

A sugarcane harvester comprising an extractor, the extractor comprising an extractor fan configured to generate a flow of air to separate debris from sugarcane billets produced by the sugarcane harvester, the extractor fan comprising an extractor fan blade configured to contribute to generation of the flow of air, the extractor fan blade comprising an upper wear surface and a lower surface opposite the upper wear surface, the fan blade including a first configuration and second configuration, wherein the first configuration includes a wear indicator recess formed at a location at the lower surface, and the second configuration includes a through-hole extending through both the lower surface and the upper wear surface at the location of the wear indicator recess, wherein the through-hole indicates that the fan blade is worn and ready for replacement.