Use the ladder if necessary.
Hydraulic door closer adjustment screws.
Determine if the adjustment screw is a flathead or a phillips screw and have the appropriate screwdriver in hand.
Door closers consist of a spring and a hydraulic mechanism.
The spring tension adjustment screw is on the end opposite the piston.
An hydraulic door closer is a mechanical device which automatically closes a door using springs and a system of chambers filled with a hydraulic fluids to control the motion speed of the door.
Do not completely unscrew door closer hydraulic adjustment screws or you will ruin the closer and void the warrantee.
A turn of just five degrees can significantly increase or decrease closing speed.
Step 2 determine and adjust the door speed.
When it comes to turning the screws that operate these valves a little goes a long way.
It accomplishes this by.
Turn the adjustment screw clockwise to slow the door closer down counter clockwise to speed it up then get down off the ladder and observe the effect.
Making an adjustment to a commercial door closer.
A door closer is a mechanical device designed to close a door slowly but firmly enough to latch.
Look for the adjustment screws on the spring cartridge of your hydraulic door closer.
A typical door closer has a cylindrical or rectangular body filled with hydraulic fluid.
You may see the hydraulic adjustment screws on the underside of the body.
Remember when it comes to turning door closer adjustment screws a little goes a long way.
Also hydraulic fluid will leak out of the closer and make a mess.
Most of the adjustments to the commercial door closer are implemented by opening and closing hydraulic valves.
This will make you unpopular.
Open the door and watch it close.
The close swing or sweep speed adjusting the door closing speed.
Start with no more than 1 8 of a turn.
In addition most models have adjustment screws for swing speed latch speed and back check accessible after you remove a cover on the piston body.
All models have a spring tension adjustment at the end of the hydraulic piston.
The most common door closer adjustments are.