From the door frame, remove the roller door. It may be important to lift the stationary door from its frame before lifting the roller door out and laying it down. Alternatively, you may need to raise the roller door out of the track and over the frame. The rollers are located at the top, bottom, or both of the doors. The rollers must be unscrewed and taken out. With a wire brush and turpentine, clean them in a pie tin. Wipe them dry with a cloth. Examine the cleaning roller and coat it with penetrating oil, WD-4, or silicon spray. Prior to replacing the door, clean the track after reassembling the components in the opposite order.