Some garage door openers have a neutral position for the trolley disconnect.
How to instal a garage door spring.
There are two types of garage door springs.
Weigh your garage door.
Unplug the garage door opener and clamp the door to the track.
Disconnect the garage door opener so the door remains closed.
The doors with two springs are easy to replace.
This can still be done when only one extension spring is broken.
Disengage the opener from the door.
In the past extension springs were safer to install but didn t have containment cables running through the center of the spring.
Use locking pliers or a c clamp to secure the door to the track to keep it from opening when you release the tension on the springs.
Garage door springs come in two styles.
A pair of new springs cost about 25.
You may need to use a 2x4 or some other object to pry the garage door open.