Worm Screw Movement

jd747June 20, 2007

I have a Craftsman 1/2 HP GDO, model 139.536445SRT, manufactured 10/96. Whenever I activate the opener, the worm screw moves about 1" to and away from the garage door, which in turn, knocks off the interrupter cup. This causes the opener to reverse directions and stop. I called a technical support number and they said there should only be about 1/16" of play for that worm screw to move. Mine moves at least 1". Any ideas on how to eliminate the play in the worm screw and eliminate the interrupter cup getting knocked off?

Thanks in advance.

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The drive gear kit comes with hardware that should correct your problem. It is available from Sears and the part number if 41A2817.

    Bookmark   June 20, 2007 at 5:44PM
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