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How to Repair a Bifold Door Top Pivot A bifold closet door's top pivot could become loose and scrape along the floor. You can correct this by loosening the set screw for the top bracket a bit. The top pivot pin is an iron screw that fits into a cap made of plastic which has a rounded top and stays in the track above the front door. You'll need a screwdriver and possibly pliers. Remove the Bottom Pin The bifold doors can be a great way to save space in your closet, however as time passes, they could