lcn senior opener date stamp

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The LCN "Traditional" series closer line was discontinued in 1980.  
The ES Filter started to ship with these units (Senior Swing/Benchmark/Falcon) on 4/22/2013.  The ES Filter kit will help eliminate line noise from an Electric Strike if used. 
On the Senior Swing, if you have line noise from a strike the unit could go into an Error Code on the Control Box (Er13) and will not operate.  Adding the ES Filter, which is a diode, will eli...
On the Benchmark and Falcon, if there is line noise from a strike then the unit will lose it's hold open time.  Adding the ES Filter, which is a diode, will resolve this issue and the unit wil...
The date is a 4 digit #. The first 2 numbers indicate the week it was made, and the last 2 numbers indicate what year it was made. On most surface mounted closers, the model #,  date code, ...
LCN started putting on the green dials for the spring adjustment on the 4041's in 2001.
Closers mounted according to LCN installation instructions require no periodic maintenance or seasonal adjustments.  Monthly, quarterly, and annual visual inspections are recommended for Fire/...
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...
If a door is being held open by the LCN SEM 7800/1900 magnet or any ME/SE Series Sentronic LCN closer, you can remotely release that door to close by ordering the following parts and wiring per ST ...