Clutch not releasing

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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 Schlage SL1 ligature resistant lever is designed to break-away between 100 and 200 inch-pounds.  The lever will rotate at this point but not allow access.
One of the following items may cause the EL1490 device to retract then release: Incorrect power supply - Verify you have the PS873-2/4TD or PS914-2RS/4RL power supply. Problems with wire gauge...
If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...
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...
To check the clutch on a 4600 Series operator: Follow the wires from the clutch to the 4 pin connector on the controller, and disconnect the connector from the control box. Clutch -- Measure th...
If mechanism cover plate causes the EL solenoid to drop when slid over the solenoid, the solenoid plunger requires adjustment.  You must lengthen the rod by turning the hex nut in front of the plun...
4600 Series, Power Operator