A combine unload control system (500) having a grain tank (150) for storing grain and at least one auger (326, 406) for unloading grain from the grain tank (150). The control system (500) also includes a first auger cover (408) proximate to the at least one auger (326, 406), having one or more first auger cutouts (418) disposed on a portion of the first auger cover (408) and a second auger cover (410) proximate to the at least one auger (326, 406) and having one or more second auger cutouts (420) disposed on a portion of the second auger cover (410). The control system (500) further includes a controller (502) configured to control amounts of grain to pass through the one or more first auger cutouts (418) and the one or more second auger cutouts (420) and flow to the at least one auger (326, 406) by causing the first auger cover (408) and the second auger cover (410) to move relative to each other.
