3 springs are only sold in pairs.
How to level a garage door with extension springs.
In this video i will show you how to replace a broken cable for your extension spring garage door.
Once the spring is free of tension remove from its track hanger.
For extension springs this is in the up position.
Measure door the height.
If both springs are the same length the garage door should be level across the floor.
Adjusting an extension spring door.
To be able to adjust the springs the door must be in a position that release the tension on the springs.
For a complete list of garage door extension springs for 7 8 9 10 11 12 13 and 14 tall doors click here determine the door weight and door height.
If it was opening too quickly move it to the next lower hole.
The pull weight of an extension spring is determined by the color code found on the end of the spring.
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To keep the door from falling it must be clamped to hold it in place.
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.
A problem with the spring tension could cause the door to open or close unevenly improperly or at the wrong speed and adjusting the springs will likely solve the problem.
Be sure the door is open and supported when doing this.
Home owners can replace an extension springs safely by following these steps.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
Starting with our easy to use selection tool you can easily find the garage door extension springs you are looking for the 1st time.
Adjust the springs on both sides of the door the same way.
Complete instruction to repair a broken garage door spring.
Retest the door balance as you did in step 1.
Garage door springs offset the weight of the door and allow it to open and close with ease.
8 doors require a 27 spring that stretches up to 48 75 total length when to door is closed extension springs are a non returnable item call customer service if you have any questions.
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.
