Once in place disconnect the.
Replacing a garage door extension spring.
Disengage the broken extension spring one end at a time.
If you have an older opener you may need to remove a fuse or flip.
How to replace a garage door extension spring step 1.
Get it right the first time.
Some garage door openers have a neutral position for the trolley disconnect.
Open the garage door to remove all spring tension and clamp it in place.
Unplug the power cord to your garage door opener.
Replacing garage door extension spring safety cable.
At the far end of the door rail.
The new spring s diameter length and wire size or gauge must be the same as your old spring.
Purchase new garage door extension springs.
The following steps will walk you through how to replace an extension garage door spring.