Question about Craftsman 13953637SRT Remote is Equivalent to the 81LM
Refer to your manual. The main control box has adjustment plastic potentiometers, usually on the back of the unit were the wires are. Using a small flat screwdriver you can adjust the up stop and down stop. There is 1 adjuster for each.
Posted on Jun 15, 2014
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Posted on Jan 02, 2017
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Mar 15, 2017 | Building Materials
Sep 03, 2014 | Building Materials
Loosen the chain enough
so that you can remove it from the sprocket above the motor unit.
With the door closed run the motor until the sprocket turns clockwise
and stops. With everything attached replace and tighten the chain.
Some adjusting of the up and down limits will probably be required.
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