Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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Don't stop in the rigth position

I have a 1/2 hp garage door opener model (j391535j37) that when it stop
makes a loud noise because don't stop in the rigth position .. i can see inside it two sticks that oprates with a flat screwdiver to fix it ... where can i find the technical manual of it to fix it

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I think the two sticks you are talking about are the up and down limit controls. If you look at the cover you will see an arrow over each hole. If you turn the control in the direction of the arrow the door will travel further. The opposite is true if you turn the control against the arrow. It should be easy to adjust the door now.

Posted on Jun 15, 2009

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