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“
LCN Closer Maintenance Manual
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RELATED FAQS
Question
Answer
What maintenance is required for an LCN closer?
Resolution:
Closers mounted according to LCN installation instructions require no periodic maintenance or seasonal adjustments. Monthly, quarterly, and annual visual inspections are recommended for Fire/...:
When did LCN quit making traditional potbelly style closers?
Resolution:
The LCN "Traditional" Potbelly series closer line was discontinued in 1980. Unfortunately there is no direct replacement for these old units. Would need to replace with...:
Does LCN repair or sell rebuilt closers?
Resolution:
Because of the new extended LCN warranties and the desire to be consistent across the entire Allegion premium brands, LCN will be moving away from offering an out-of-warranty repair service beginni...:
Is there adjustment limits on the regulation valves of LCN manual closers?
Resolution:
The regulation valves are designed to adjust the flow the hydraulic fluid in the closer which regulates the door closing speed through various phases of the closing cycle. The regulation valv...:
What is the delay time adjustment on a Delayed Action closers?
Resolution:
Regular LCN closers have "3" regulating valves for General Speed, Latch Speed, and Backcheck. If the LCN closer has "4" regulating valves, then the closer has the Delayed Action feature. De...:
Do LCN closers come with thru bolts?
Resolution:
The standard screw pack for most LCN closer is the SRT (Self Reaming and Tapping) screw. Thru bolts are an option but must be specified on the order. There is no charge for them, but they...:
Can LCN closers be installed outside in the elements?
Resolution:
The LCN closers are not designed nor intended to be exterior mounted in the elements. :
What arm can I use for the old LCN 4030/4130 closer?
Resolution:
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...: