You need proper tension on a garage door to operate the door by hand or with an automatic opener.
Tension wire on garage door.
Then insert another rod into a hole below the rod you already inserted.
The cable runs through the torsion springs literally doing the heavy lifting each time the door is raised.
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If the tension is too loose the springs that help lift the.
Premium 2pcs winding bars with non slip handle 1 2 inch in diameter x 18 inch in length used for garage door torsion spring.
How to adjust garage door tension.
Liftmaster 41a6104 cable tension monitor for garage door opener 8500 3800 3900.
Lower the door and use 2 metal rods to adjust the tension in the spring.
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1 2 inches diameter x 18 inches long torsion spring winding rods garage door winding bars use for adjusting or replacing garage door tension springs 4 5 out of 5 stars 52 13 66.
Lower the garage door clamp or bolt it shut so it can t open and insert 1 metal rod into 1 of the holes around the perimeter of the spring.
It s actually one of the most important safety mechanisms of your garage door.