If the garage door isn t opening or closing properly then check the tension on the torsion springs for needed adjustments you may need to have someone helping you to adjust the torsion spring because it can be potentially dangerous.
Overhead garage door spring adjustment.
They have cables threaded through them and a cable that is threaded around a pulley.
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.
How to safely adjust your garage door spring.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
This type does need to be adjusted at times.
This can make the other parts of the garage door last a much longer time.
Once the spring is free of tension remove from its track hanger.
If it was opening too quickly move it to the next lower hole.
This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.
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.
Step 1 look for a reddish cone on the torsion spring.
You must release the tension on the garage door springs before attempting adjustment or replacement.
Retest the door balance as you did in step 1.