An agricultural harvesting machine is described. In one example, the machine comprises a header, a feed system configured to feed material from the header through a threshing section along a conveyance path, the feed system including a conveyance mechanism that conveys the material from the header to a rotating feed mechanism, and a drive system configured to rotationally drive the feed mechanism during a first state to convey the material along the conveyance path, and to reverse rotation of the feed mechanism during a second state. In one example, a drive system comprises first and second drive mechanisms, and a coupling mechanism configured to selectively couple one of the first or second drive mechanisms to an output mechanism, such as, but not limited to, a rotating feed mechanism in an agricultural harvesting machine.
