As the one piece door opens the extension spring continues to pull down on the lever arm.
Tilt garage door side extension springs adjustment.
Install a vertical two by four brace at the outer edge of the door to prevent the door from falling.
Retest the door balance as you did in step 1.
To be able to adjust the springs the door must be in a position that release the tension on the springs.
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.
Secure the door in place before you start actually adjusting the door push it up as far as possible.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
Through the use of pulleys they perform the same function as the torsion springs.
Adjust the springs on both sides of the door the same way.
You will have to adjust the tension on that side.
Brace door before adjusting extension springs.
Open the door fully to relieve the tension on the hinge springs at each side of the door opening.
As the door opens the extension spring contracts and loses its pull.
Side mounted springs are long heavy springs mounted on each side of the upper garage door track.
To keep the door from falling it must be clamped to hold it in place.
If you notice a gap on one side it means that one of the springs is putting more force on the door than the other.
If it was opening too quickly move it to the next lower hole.
When you help raise the bottom of the door you raise one end of the lever arm.
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For extension springs this is in the up position.
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.
Raise the door and release the garage door opener.
The extension spring pulls on the other end helping the door open.
This tension makes it easier to lift the garage door from its closed position.