When trying to put our electric bedroom slide out today, the bottom was traveling out, but the top was binding so the whole slide was traveling at an angle and would only go out about 3-4 inches at the bottom. It is not the tension from the awning. When opening under the bed, we did see a round donut sized part that slides onto the motor shaft that was barely hanging by a screw but not attached. Don't even know what it is, but I reinstalled it the way it seemed to fit back together, but not sure if there is some special trick. Any suggestions?