This tension makes it easier to lift the garage door from its closed position.
How to tighten garage door extension springs.
Brace door before adjusting extension springs.
You need to increase the tension in case the door can be lifted only with difficulty or if it closes faster than it should.
You need to lower the tension in case the door can be closed only with difficulty or it opens faster than it should.
Adjusting an extension spring door.
Side mounted springs are long heavy springs mounted on each side of the upper garage door track.
The springs extend along the shaft and work by twisting as the garage door closes by means of cables attached to each side of the lowest garage door panel.
To be able to adjust the springs the door must be in a position that release the tension on the springs.
A garage door that is not attached to the springs can fall and cause injury.
Once your garage door is secured remove the spring hook from the track hanger which will allow you to move the hook and adjust the spring s tension.
See below to make sure the door is secured before you work on it.
With an extension spring door the goal is to take all the tension off the door before you even think about touching a spring you can do this by opening the door all the way and propping it up with a ladder.
Open it just as wide as you can without hitting the garage door opener s stop bolt and place a clamp on the track on both sides to keep the door in.