If the door was closing too quickly move the spring to the next higher hole on the bracket.
Tighten garage door spring.
Disconnect the garage door opener so the door remains closed.
Through the use of pulleys they perform the same function as the torsion springs.
Retest the door balance as you did in step 1.
Take note of the notches and screws that hold the torsion spring in place.
Ideally the door should slowly float up from this point.
Position a sturdy ladder to the side of the springs rather than working directly in front of them for safety reasons.
Side mounted springs are long heavy springs mounted on each side of the upper garage door track.
Once the screws are loosened place the second metal rod into an opposite notch on the cone and turn both rods to the right or to the left depending on whether you are tightening or loosening the tension.
Put on eye.
It should be placed on the left hand side of the torsion spring and placed away from the garage door s center.
Step 1 unplug the garage door opener and clamp the door to the track.
Turn the rods to the right.
Slowly close your door about halfway and release it.
The springs extend along the shaft and work by twisting as the garage door closes by means of cables attached to each side of the lowest garage door panel.
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.
Adjust the springs on both sides of the door the same way.
If the garage door easily swings open and closed then it will need to be tightened.
How to safely adjust your garage door spring.
Use locking pliers or a c clamp to secure the door to the track to keep it from opening when you release the tension on the springs 1 x research sourcestep 2 loosen the set screws while holding each spring with a winding bar.
Locate a reddish color cone around the spring.
Next get hold of one of the tension rods and push it into the first notch.
Hold the garage door and remove the vise grips from the track after the spring tension has been adjusted.
Release your hold on the door and see if it stays up all the way.
If it was opening too quickly move it to the next lower hole.
Once the spring is free of tension remove from its track hanger.
This can make the other parts of the garage door last a much longer time.