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Craftsman 1/2 HP Chain Drive Garage Opener Problem


Posted by Pritesh Shah on December 23rd, 2002 08:39 PM

Hi,
we just moved into a house where Craftsman 139.53960 1/2HP chain drive opener is installed. The trolley broke recently and I replaced it.

The problem is that when the door is opened the trolley goes all the way to the Opener (lens) side safely bolt and motor stops upon hitting that bolt. Is this the way it is supposed to happen? Or I have to adjust something?

In the way it works now, the door opens and closes enough but I am just concerned about the trolley hitting the opener side bolt every time the door is opened.

Any advise would be greatly appreciated.

Thanks.

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