why do hold open closers wear

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Try the steps below to improve the hold open adjustment. Remove hold open nut  Apply a couple drops of blue loctite to the threads. Re-assemble, and reset hold open. Let loctite set up overn...
If an ME Series closer creeps shut or will not hold open, Verify proper voltage is being supplied to the closer, if correct Check the on/off switch. Verify the voltage on the 2 pin co...
This condition can be caused by the "closing speed adjustment" being regulated for a fast closing speed. Try adjusting the closing speed to slow down the closing of the door. If that does not corre...
Make sure that the hold open nut is not on upside down.  The orientation of the hold open nut depends on the mounting. On a Top Jamb "Push Side" mount, the hold open nut would poi...
 The correct method (process) for setting the hold open is: The 4010 hold open arms are handed, verify correct hand arm. (R or L stamped on main arm) Loosen the hold open nut. Opened the door ...
When placing an order for a 4041/4040XP Rw/PA with hold open, it would be ordered as a 4041 /4040XP Hw/PA. For an existing Rw/PA requiring the addition of a hold open function, a hold open arm woul...
The 1260, 1460, and 4030 regular arm closers on the pullside will allow 180° door opening and can be held open at 180°, frame and trim permitting.
No, LCN does not have an electronic hold open closer (SE/ME Series) that will provide a solid 180° hold open position. The 3130SE has an adjustable hold open position from 85° to 110° maximum. ...