squealing motor clutch on

RELATED FAQS

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       "Opening Force" adjustment could be set to strong (high).  This adjustment is a turn pot adjustment which can be found on the controller.  Try adjusti...
A 4600 (4630/4640) not opening to a full 90 degrees could be caused by a couple things: The Opening Force could be set too low. Try increasing the opening force adjustment on the controller a 1/...
The 4610/4620 series operators are obsolete. There is no replacement part for any electronic component (motor/clutch, controller, input/output PC boards) for the obsolete 4610/4620 operators.Essent...