. Remove debris: Check the floor guide track and the gap under the door panels; clear out any stones, grit, or mud.
. Apply lubrication: Spray an appropriate amount of lubricant (e.g., WD-40) on the top bearing, floor spring, and pivot points.
. Adjust the screw: If it sticks at a specific spot, use a hex wrench to fine-tune the gap between the eccentric wheel at the bottom of the door and the floor.
