closer back check

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The valve on the back of a 4041/4040XP closer is a "Back Check Selector Valve" that needs to be turned in on "Parallel Arm" mount applications ONLY. If a 4041/4040XP closer mounted "Top Jamb", or "...
Closers mounted according to LCN installation instructions require no periodic maintenance or seasonal adjustments.  Monthly, quarterly, and annual visual inspections are recommended for Fire/...
For a door closer that tries to open the door instead of closing it:The closer body could be mounted backwards on the door - check instructions for proper closer orientation.It could be the wrong h...
  How to:  What are the steps to adjust a door closer?   Facts: All LCN and FALCON door closers will have 3 regulating valves and a spring adjustment.  All cl...
There are a few things that can cause a closer to slam. The closer could be adjusted incorrectly. Turn all regulating screws clockwise until they stop. Then open each valve 1 and 1/2 turns. If t...
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...
This method is only available before the first network communication between an Access Control Panel (ACP) and the lock. Do a Level 1 and Level 2 Factory Default Reset (FDR) to remove any previ...
Manually Setting the RS-485 Address This method is only available before the first network communication between an Access Control Panel (ACP) and the lock. Do a Level 1 and Level 2 Factory De...