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door opener

Posted by robert libbon on December 8th, 2002 02:57 PM

Motor intermitantly will not run up or down. Motor hums when this happens. Removed opener and changed both gears and installed new bushing and shaft hardware.(collar,cup. spring 7 cup washer and set screw collar) all to no avail. Motor seems to be binding or I have a bad motor bearing. Please help. Bob

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