Proper time for door closer

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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...
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 valves h...
A  LHR (left hand reverse) door uses a RH (right hand) door closer. A RHR (right hand reverse) door uses a LH (left hand) door closer.
A door can be handed in several ways. The easiest way is to stand on the Push side of the door. Push the door away from you as if you are going to walk thru the opening. If the hinges are on yo...
To determine the hand of a door, view the door from the outside, security side or key side of door.  Once there identify which side are the hinges located on the, right or left side of t...
Go to the push side of the door opening.  See above illustration. If door swings out to the left, it needs a left hand door closer. If door swings out to the right, i...
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 AND SHOE: ...
The Date Code and Closer Size are stamped in the backside of the closer body. Closer Size: If the number is "1", the closer is a 2031 or 5031. If the number is "3", the closer is a 2...
Thermal Bow is a temporary condition which occurs in metal doors mainly due to the temperature differential from one side of the door to the other. This may occur in exterior doors when direct sun ...
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 "Delay" feature ...
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 see...
The maximum recommended door weight for LCN closers is 225 lbs.