7.2 If the spring bracket is slotted, vise grip the bracket to secure the shaft in the bracket. This will keep the shaft from possibly falling out and causing injury or damaging the garage door or shaft. You can also secure the shaft with a cable tie. Remove the bushing from the cone and leave it on the shaft next to the center spring bracket. Often the bushing gets stuck in the cone and customers will call us about getting a new bushing until they discover it is still in the cone of the spring replaced earlier.
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.
The national average for garage door repair cost is between $80 and $110. Some of the factors that affect your garage door repair cost are the type of springs (most often torsion or extension), the size and weight of the door, and the door material. Many garage door pros will charge a service fee to visit your house and determine the problem. Often, the service fee includes a set amount of labor. One example of this is an $80 service fee that includes the first hour of work plus testing and inspecting your garage door and garage door opener, while another pro may charge $150 for the same standard service call.
With over 300 independently moving parts, your garage door is a deceptively complex piece of equipment. To help prevent malfunctions and break-downs, it is a good idea to occasionally perform a garage door tune-up to keep all of these parts in good working order. A regular tune-up service by a Sears professional can prevent unexpected door problems and prolong the life of your existing equipment. http://m.youtu.be/Z_eZc-kh40c