A quarter turn at a time will do it.
Tighten garage door torsion spring.
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.
How to safely adjust your garage door spring.
The article provides installation instructions for springs and adjustment information torsion spring information.
This can make the other parts of the garage door last a much longer time.
I have been in construction most of my life and i personally know a few garage door installers.
I have worked on torsion springs and i must confess that it made me nervous.
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.