Torsion spring garage door – There are two types of springs for garage doors: extension and torsion springs. The extension springs are attached to each side of the door and go to the end of the door rail, providing traction force. The torsion springs apply torque to the torsion bar that connects to the wiring drums, which instead applies force to the cables that are attached to the door. As the door opens, the cable is wound into the wiring drum, and the force of the spring supplies most of the force that lifts the door.
Torsion spring garage door store a lot of energy that can cause serious or even fatal injuries. If you are not sure of your mechanical skills, you should hire a professional to perform the installation. The danger of injury is very real and the cost of a professional is relatively small. If you decide to do it yourself, you should use eye and hand protection, and you should always be positioned in a way that your eyes and head are out of the way of the spring and the torsion bars or tools used to rotate the cones. You must rent a tension torsion spring tool for the sake of safety, although it is possible to do the job with two 18-inch (46 cm) steel torsion bars that fit properly in the torsion cone. Never use a screwdriver to wind the spring. You will also need an adjustable or open-ended spanner and two pairs of pressure clamps.
A staircase is essential, and you may need a folder, a ruler and some chalk. As mentioned in the previous section, you will need eye and hand protection. You will also need an assistant. Making sure that your tools and the assistant are inside the garage, close the door and secure it by placing the pressure clamps or C clamps on the door rail above the rollers. An unsecured door can cause injuries when opened. Slide the torsion springs towards the torsion bar. There may be one or two springs, depending on the design of the door. You and your assistant can now attach the torsion bar to the end bearings, and attach the wiring drums to the torsion bar.