Abstract: A sweep auger attachment for use in combination with an unloading conveyor. The sweep auger includes a first auger coupled to a second auger. A backboard, for directing grain into engagement with the augers extends along one side of the first and second augers. The first auger is rotatably mounted by a bracket to the backboard. A support arm, mounted on the backboard, supports the second auger. The sweep auger is selectively pivotally mounted on the loading conveyor between a first and a second position. The sweep auger longitudinal plane, defined by the axes of the first and second augers, is offset with respect to the pivot axis in the first position, and aligned with the pivot axis in the second position.