Garage doors are usually moved smoothly up and down by garage door rollers. These rollers are held in place by brackets that are affixed to the door and it also has a stem that is connected to a bracket sleeve while the roller itself fits into a garage door track. Although there is no guarantee that the roller won’t go off no matter what, so if there comes a time that it will jump off track and no one is there to help you fix it, you have no choice but to do it on your own. The good side…