The unloader system has a conveyor and a raise system having an elongate support element including a flexible first end portion and an opposite second end, the first end portion being connected to a support structure at a location higher than a first end of the conveyor, and the second end being connected to the conveyor at a location therealong adjacent to a free end thereof. A cam element is disposed on the support structure in a path of movement of the flexible first end portion of the support element such that as the conveyor is pivoted from the stored position toward the operating position the flexible first end portion will conformingly engage or bend about the cam element to raise the free end of the conveyor. The conveyor can include an elbow which is straightened by this action for raising the free end.