https://dev.to/monkeycrayon54/7-simple-secrets-to-totally-rocking-your-bifold-door-repair-40lg Repairing Bifold Doors The hardware that holds the bifold doors together will wear out over time. Cleaning and lubricating all the mechanisms (including the lock) will keep them functioning efficiently and smoothly. Most of the time, the issue can be easily solved. This guide will explain how to fix your bifold door when it becomes difficult to open or close. Cracked Pivot Pins A bifold door is made up of a pair of panels that slide on track that is located in the head side jambs or floor. They pivot around pins installed in the corners closest to the frame of the one panel. A guide is positioned on the top of the other panel to help it move along the track. If your bifold is sagging or rattling, it could need to replace the pivot pin or anchor. The pivot pins on bifold doors are fixed to the track with brackets that are screwed onto both the side jamb as well as the floor or head jamb. The bottom bracket features a notch to adjust the angle between the door and the floor or jamb. Sometimes, the pivot pins break or break off. This is usually caused by the twisting force applied to the pivot pin when moving long logs using the help of a track loader or grapple. This problem can often be resolved by loosening the set screws on the bottom bracket, and raising the door slightly. This will bring the door's edge parallel to the frame, and will eliminate the scrape. It is not uncommon to find the main pivot pin on a bifold door cracked or broken. The reason for this is that the pin is subjected to more tension and twisting than the coupler or thumb. This is particularly true for older pins that are made of a soft material. If the pin is damaged you can pull it out from the door using a flat-head screwdriver or pliers. Then clean out the coupler or thumb and replace it with a new pin. Ensure the diameter of the pin is identical to the old pin. Use an appropriate punch with the rig