The technician, Robert Helton, was very pleasant, helpful, and professional. He repaired the garage door opener expeditiously and explained why it hadn't worked properly. He also checked the chain mechanism and the door itself and showed me how to manually work the door should I need to do that in the future. I was very pleased with this repair work.
Just like on a bike sprocket, your cables can sometimes become disengaged. Oftentimes, when a torsion spring breaks, the garage door cable will snap as a result. Sometimes, the cable will cause damage to a vehicle or wall, and if a person happens to be in the way of the cable it can cause serious harm. If you cables have snapped, you should call a professional to help you. See the video above.
Gather the supplies and tools needed for changing the springs safely. In addition to the torsion springs you'll need a minimum of one or two 10" vise grips, an adjustable wrench, and two 1/2" X 18" winding bars. Most hardware stores sell 1/2" X 36" steel rods that can be cut in half. You'll also need a firm ladder and a rag for cleaning your hands. A ruler and a file may also be necessary; a socket wrench and sockets would shorten the time required. Finally, make sure your garage is lighted well. https://www.youtube.com/watch?v=Z_eZc-kh40c&feature=youtu.be
Garage doors are able to move due to a counterbalance system that usually consists of a torsion spring. We often find incorrect springs have been installed which result in an unsafe door that you may not be able to open manually when needed. The balance of your garage door should be tested annually to reduce wear on your garage door opener and ensure it can be opened if an emergency situation arises. Because of the dangers involved with torsion springs, garage door spring repair and installation should only be done by experienced professionals like our Medics.