what is an adjustable closer

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LCN started putting on the green dials for the spring adjustment on the 4041's in 2001.
 The correct method (process) for setting the hold open is: The 4010 hold open arms are handed, verify correct hand arm. (R or L stamped on main arm) Loosen the hold open nut. Opened the door ...
Closers mounted according to LCN installation instructions require no periodic maintenance or seasonal adjustments.  Monthly, quarterly, and annual visual inspections are recommended for Fire/...
The 4010 door closer is handed and they are not field reversible.
LCN does not supply Allen wrenches, the size that LCN uses, are standard sizes that every installer will have in their tool kit. 3/32" Allen wrench for adjusting regulation valves: main speed, lat...
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...
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...
LCN closers are listed by series # and an ordering #.  In this case 4040 tells us the series and 4041 is the ordering # which states the closer is an adjustable size 1-6 sp...
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 4010 Series "fixed" sized springs are no longer available. The 4010 Series closer are now available as a 4011 and a 4016. The 4011 is an adjustable spring closer for sizes 1-5. The 4016 is stil...
To determine the SC series, measure center to center on the closer body bolt hole mounting pattern and an overall description of the closer and arm. SC91 -- 6-3/8" x 3/4" -- unique arm SC93 -- 9-1...
A 4010 is the series of door closer, a 4011 is the adjustable spring inside the closer.
The hold open position on a "REG" or "EDA"  hold open arm is set with the door to a few degrees shy of the desired hold open point. To properly set, open the door 5° less then the desired hold open...
The Falcon SC81 series closer has a mounting hole pattern of 12" x 3/4".
615R is not a door closer model number. It is a UL number for the Falcon SC Series closers.
Yes, the Falcon SC Series closers have a UL listing.
The Fusible Link arm is available with the 4010, 4020 and 4110 series closers. They all use the same Fusible Link arm. The UL Listing number is for the Fusible Link arms is R1943. The 4010 Serie...
Surface Mounted door closers are the most durable and common type of door closer. Mounted to the surface of the door or frame Can be configured (through installation or arm type) to meet a...
The Falcon SC60, SC70, and SC80 series closers all use the same arm options. The SC91 series uses a different arm from the rest.
All the 2030 series closer have a fixed spring sizes. Example -- a 2031 has a size 1 spring,  a 2302 has a size 2 spring, 2033/2034/2035 etc. All the 2030 series closer are shipped at the weakest s...
Hold Open Closers & Magnets (Fire/Life safety products) provide a wide range of solutions.  Single or multi-point hold open closers Utilize an electromechanical closer. Hold the door o...