Restoring Smooth Operation: A Comprehensive Guide to Repairing Your Bifold Door Top Pivotsliding bifold door track Repair doors, also known as folding doors, are a popular choice for maximizing area and producing a smooth transition between rooms or between indoor and outdoor living areas. Their special folding mechanism permits for larger openings than conventional hinged doors, making them ideal for closets, kitchens, utility room, and even as patio doors. However, the smooth and efficient operation of a bifold door depends upon numerous essential elements, and among the most important, yet frequently ignored, is the top pivot.The leading pivot is a little however vital system that sits on top corner of a bifold door panel, allowing it to rotate smoothly within the track system. With time, due to wear and tear, improper positioning, or perhaps unintentional damage, this pivot can stop working.