Before you start actually adjusting the door push it up as far as possible.
How to adjust extension spring on garage door.
To adjust your garage door s side mounted springs first open your door fully and secure it in place with a c clamp below the bottom roller.
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.
There are two ways you can change the tension on the springs.
Change the length of.
How to adjust extension springs secure the door in place.
This video is for guidance only we will gladly undertake garage door repairs in manchester and stockport for you call us today 01663 749007 or visit www hi.
With the door propped open take the s hook out of the support and tighten or loosen the cable as needed.
To make fine adjustments try adjusting the lifting cable instead of the spring.
Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.
It should be placed on the left hand side of the torsion spring and placed away from the garage door s center.
To keep the door from falling it must be clamped to hold it in place.
Take note of the notches and screws that hold the torsion spring in place.
Raise the door and release the garage door opener.
This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.
Next get hold of one of the tension rods and push it into the first notch.
You must release the tension on the garage door springs before attempting adjustment or replacement.
The cable is attached to the door and runs to an s hook that attaches to the track support.