Clockwise gives the closer more closing power which also makes the door harder to open and turning the screw counter clockwise will give the door less closing strength and makes the door easier to open.
Fire door closers adjustment.
How to adjust a commercial door closer.
Spring adjustment is located on the end of the spring tube 5 32 allen wrench.
Look at the end of the cylinder closest to the bracket with the door closed to see the adjustment screw.
Almost all door closers will have the above two adjustment hydraulic valves but some have additional features which can be adjusted similarly.
It is used to adjust the spring strength force to close the door.
We installed a commercial door closer for our office in a previous video and in this video we wanted to show two diff.
Door closer adjustment is an art that requires knowledge patience and an ability to climb up and down a ladder several times but with these attributes and the appropriate wrench hex key or screwdriver you can do it yourself.