Hi,Don. Without knowing what kind of doors you have, I'll give you the general directions. If you can't lift them up and remove them off the bottom bracket, look up into the top track and you will see the bracket that holds the top pin. There will be a screw that holds the bracket in place. Loosen the screw without taking it out. Hold the door because it might fall. Slide the top of the door toward the center untill the pin comes out of the bracket. Put back the reverse procedure. If your still having problems,let us know. Have a good week-end, Ron J.