How To Change A Torsion Spring On A Garage Door

Here s how to replace garage door torsion springs.

How to change a torsion spring on a garage door.

Slide your new torsion spring to the center bracket above the garage door. The cone should cover your mark after the first couple turns. If your door has two springs which many do it is wise to replace both of them at the same time. Begin removing the old springs by securing the door to the track.

This cone has notches in it that are used to adjust the tension in the torsion spring. Reattach the cable drum rewrap the cable and reinsert the shaft into the bearing. Many garage door tradesmen mark the torsion springs with chalk or paint but this often generates confusion. The red cone indicates a right wind spring.

Using a hammer tap the winding bar to stretch the spring out inch. Look for a reddish cone on the torsion spring. This is two as you wind the spring it should grow in length the thickness of one coil for every turn. Tighten the set screws on the winding cone.

To ensure the correct wind on the new torsion spring the end of the spring wire next to the winding cone on the left side should point up. Insert the second bar. Close the garage door and use c clamps to hold the door closed.