This video applies t.
How to adjust tension on garage door torsion spring.
This cone has notches in it that are used to adjust the tension in the torsion spring.
The cone is on the torsion spring on the left side away from the center of the garage door.
Look for a reddish cone on the torsion spring.
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.
This can make the other parts of the garage door last a much longer time.
You must release the tension on the garage door springs before attempting adjustment or replacement.
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.
Install a vertical two by four brace at the outer edge of the door to prevent the door from falling.
Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.