Once the spring is free of tension remove from its track hanger.
Manual garage door spring adjustment.
Retest the 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.
If it was opening too quickly move it to the next lower hole.
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 adjust manual garage doors to stay up step 1.
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Secure the garage door in this position by clamping vice.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
You must release the tension on the garage door springs before attempting adjustment or replacement.
This can make the other parts of the garage door last a much longer time.
How to adjust a torsion spring garage door step 1.
Adjust the springs on both sides of the door the same way.
Raise the garage door up to its fully open position.
Look for a reddish cone on the torsion 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.
This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.
How to safely adjust your garage door spring.
Use a metal rod to stick in the first notch of the cone.