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How to Repair Bifold Door Bottom Pivots A misalignment 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 floor or the base of a bracket for a secure, sturdy mounting. It is threaded to allow for adjustment. kit works with a wide range of bi-fold doors. Anchor or pivot pins that are broken or cracked The pivot pins and anchor pins on a bifold door ca