WHERE IS LEED FOR LCN CLOSERS

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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, ...
The LCN "Traditional" series closer line was discontinued in 1980.  
The LCN closers are not designed nor intended to be exterior mounted in the elements.  
It would be unnecessary to use the CNS/Cush arm and the Glynn Johnson overhead devices in the same application, both mechanisms stop the door.
STANDARD ROD AND SHOE: 4020, 4031, 1460, 1520, 1370, 1070, 1260, 4640, 4820 is: 8 3/8” LONG ROD AND SHOE: 4020: 4031, 1460, 1520, 1370, 1070, 1260, 4640, 4820 is: 12 3/8” STANDARD ROD AN...
For Warranty information, visit us.allegion.com/warranty or contact Customer Service at 877-671-7011.  
The old 4030/4130 closers and arms are obsolete, there is nothing to replace them. No arm from other closers will fit  There is no closer that can replace the old 4030 series closer with the exa...