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Posted by jaybear on December 27, 2006, 3:05 pm
Thanks, I will check these things out.
-Jaybear-
dpb wrote:
> jaybear wrote:
> > My garage door got stuck about half way up on a cold night. It went up
> > and down about a foot a couple of times and then stopped moving all
> > together. I pulled the string to disconnect it, sprayed some lubricant
> > on the rollers, and am moving it manually now because when I hit the
> > button, the motor runs, but it doesn't look like the chain is moving.
> > Could the chain have jumped off track or something?
>
> The "up and down" sounds like it bound on something and reversed on the
> over-torque switch until one of two or three things happened --
>
> 1) Sheared a shear pin on the shaft to the drive gear (if you're
> fortunate and there was one) which is designed to protect more
> expensive stuff from breaking
>
> 2) Stripped gears in transmission driving the drive gear
>
> 3) Stripped the gear teeth itself
>
> 4) If you're lucky, did just jump of the gear.
>
> Disconnect door from chain, get where you can see what is actually
> going on (but don't get a sleeve or something caught anywhere) and use
> the remote or other way to actuate it to see what is/isn't actually
> moving. (After, of course, simply getting up there and looking to see
> if you can see something really obvious like the chain not on the drive
> gear).
>
> Before trying the door again, you'll want to find out what was the
> cause of the hang up that caused the problem to begin with or you'll
> simply do more damage the next time if it isn't fixed.
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