my unit is old - screw drive style. when the door unit opens, upon reaching the end of the drive arm, it runs up against a metal slide piece on the drive arm, making a loud, vibrating noise. H-E-L-P !!

Asked by DAVID on 01/15/2010 0  Answer

ManualsOnline posted an answer 14 years, 10 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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