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Garage door height adjustment

4 replies [Last post]
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Joined: Oct 25 2007

Now that the weather is warmer, one of my garage sliders is dragging a bit towards the end of its travel. I noticed that the door is hung on a threaded rod that goes into the caster. This seems to imply a facility for adjustment. Does anyone know how to adjust the hanging height of these doors without removing them from the tracks?

-n.

Tod
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Joined: Mar 21 2003

If I recall correctly, the way I did it was to put a block of wood under the door to shim it to the height I wanted then I loosened the jam nut on the threaded rod and finally adjusted the height by screwing the other nut as required. When done, remove the shim.

It has been a while, but I vaguely recall that the hole the threaded rod hangs from is slotted. Or maybe it is how the rod attaches to the door. But I think you can also make minor adjustments in and out incase the doors are rubbing or one door is rubbing on the center support post.

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Joined: Oct 25 2007

Did you have to remove the door to get to the lower nut?

Tod
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Joined: Mar 21 2003

I think you can use an open end wrench to get to that nut. You should avoid removing the door if you can possibly do so. And I certainly did not remove the door though I might have removed the hanger piece that holds the door to the track. It has been a while since I did this and my memory is a bit vague.

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Joined: Oct 25 2007

Got it! I actually couldn't get in with a wrench, but once the tension was off the lower nut, I simply turned it by poking it with a screwdriver.

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