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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, 4 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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