Allegion
Terms of Use
Privacy Policy
Frequently Asked Questions
Ask your question
Entering your question as a complete sentence will provide more accurate results than keywords or phrases.
User questions
FAQs
Category List
“
lcn date codes
”
RELATED FAQS
Question
Answer
How do you identify the model number and date code of an LCN cast iron hydraulic closer?
Resolution:
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, ...:
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...:
How do I identify the old Falcon T lock chassis versus the new T lock chassis?
Resolution:
The Falcon T series was discontinued August 12th, 2026 and was replaced by the Falcon TM series. The date of manufacture printed on the chassis cover (see below), will determine if you have a ...:
Where is the date of manufacture on a 4041 closer?
Resolution:
The date stamp on a 4041/4040XP is on the packing nut. The date will be the week of the year and then the year. EXAMPLE: 10 05 would be week 10 of 2005. For example...:
What is an error code E04 on an LCN 4600?
Resolution:
An error - E 04 - is an indication of a constant activation input from either the "Hold Open" switch or a "Wall Activation" switch when the 4600 power is turned on. This condition also occurs when ...:
How do you identify what size a 2030 closer is?
Resolution:
The Date Code and Closer Size are stamped in the backside of the closer body. These stamps will be on a smooth machined surface of the cylinder.Closer Size:If the number is "1", the...:
When did they start putting the green dial's on the 4041 closers?
Resolution:
LCN started putting on the green dials for the spring adjustment on the 4041's in 2001.:
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/...: