garage door repair?

Rotten job this and you'll need a hand....you have to release the tension on the top spring by undoing an allen screw - but hold the tensioner itself at the same time or it will spin like hell. Then unscrew the top arm brackets and let the arm come down inside the garage to allow access to the cord coils. The coils are held to the shaft with a roll pin and I think the coils have to come off to secure the cord end. With the opener back in place and the door shut the cords should be nearly fully extended and equal. The spring then needs to be tensioned....you slacken the allen screw, turn the tensioner with a spanner as far as you can, hold it then tighten the screw - repeating this slow process until you get the tension you need. Good luck - it isn't rocket science and with patience you'll get there - but don't let the spring unwind itself, its under a great deal of tension.

John
May 2009