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Question About Stanley Black & Decker Garage Door Opener 3220.51
tension set-screw...

Chain loosens every 10 or 15 openings, and tightening set-screws fixes for another 10 or 15 times

Asked by Jerry Hilliard on 12/10/2013 0  Answer

ManualsOnline posted an answer 10 years, 11 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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