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How to Repair Bifold Door Top Roller Guide If your bifold doors are squeaking and squeaking, they may require some maintenance. They might need to be cleaned and lubricated or adjusted. The issue could be caused by a loose screw on the top pivot or the top guide roller. This kit contains all the necessary hardware to return your bi-fold closet door to its optimal performance. Remove the Door Installing an internal set of bifold doors may appear to be a complicated