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“
INFORMATION ON LCN IN FLOOR CLOSER
”
RELATED FAQS
Question
Answer
Does LCN or Dor-O-Matic still make a floor closer?
Resolution:
Neither Dor-O-Matic or LCN manufacturers a floor closer. :
What is the LCN fluid - "Liquid X" - temperature range?
Resolution:
The LCN closer fluid "Liquid X" will perform without variation between: -30° F to +120° F - for manual closers. +35° F to +120° F - for electrical closers and a...:
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...:
How do you adjust a door closer?
Resolution:
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 closers with a "Del...:
What would cause a door closer to slam?
Resolution:
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...:
Does the old style 4030 have the same templating as the new style 4031?
Resolution:
The old 4030 series was: Handed Mounted regular arm hinge side. Had sized springs, were not adjustable. The 4033 is an obsolete closer. If required, handing can be verified by looking at ...:
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...:
In what direction should the hold open nut be pointing for a 4041 H closer, up or down?
Resolution:
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...:
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, ...:
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...: