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How to Repair Bifold Door Bottom Pivots The misalignment of your doors could be the reason for your bifold doors sliding and scraping the floor. A few minor adjustments will get them back on track and running smoothly. The bottom pivot is attached to the bracket's base or floor to provide a sturdy, secure mounting. It is threaded to allow for adjustment. kit works with a wide range of bi-fold doors. Cracked or Broken Anchor or Pivot Pins The pivot pins and anchor pins on a bifold door often fail or are misaligned, which could cause the doors to slide