adjusting spring power.

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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...
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...
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...
Closing force exerted by the spring inside the cylinder to close the door
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 ...
Yes, the spring torque on 3SP1 butt hinge is adjustable.  See instructions at this link:https://static-or01.inbenta.com/fc7332911aa38d5387ffdef79e8605c6ecdc727ece31acf5bc8e26dcac5d29e4/Iv...
power adjustment, spring adjustment
If an Size 1 (ADA) closer is set to 5 lbs. opening force, it will only have about 3 lbs. (60/70%) closing force. If the closer will not close against air pressure, but the ADA requirements have to ...
Mechanical pre-loading of spring to adjust closing force