I have garage door with an auto door opener. It's the old style built with house about 25 years ago. Made from plywood, opener on track centered on door, two tension springs on each side.
My problem is that the door has drifted so far to the right that it's rubbing the door frame and putting extra stress on the opener. I figure that it's some kind of tension imbalance relating to the two long rods that run the length of the door on the top and bottom. I'm not even sure if that's the problem or if it is, which side I should tighten.
usually if it's off alignment like that, you'd tighten the low side ... bring it up to meet the high side .. then adjust the opener to close farther ... that'd be my take :)
Be very, very careful. Those springs have an unbelievable amount of
tension built up in them. They can reach out and bite you faster
than you can say "Whuh happen?"
Unless you have experience, I would recommend you call a garage door
company. They should do an adjustment for 30 bucks or so.
If your door is pulling more towards one side, check the metal parts of the "hinge". Something could be bent slightly out of alignment.
Keep the door open when working with the springs - it minimizes the tension on them. Use a prop for safety.
The top and bottom bars keep the door "flat" when open, so it won't sag in the middle from gravity. If it sags, tighten 'em.
Check that the opener and track are perpendicular to the door. Lube all moving parts.Hope this helps!
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