Door closers consist of a pneumatic cylinder which controls the speed of the door and a bracket which holds the cylinder to the door.
Fire door closers adjustment.
Look at the end of the cylinder closest to the bracket with the door closed to see the adjustment screw.
It is used to adjust the spring strength force to close the door.
How to adjust a commercial door closer.
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.
Spring adjustment is located on the end of the spring tube 5 32 allen wrench.
We installed a commercial door closer for our office in a previous video and in this video we wanted to show two diff.
Almost all door closers will have the above two adjustment hydraulic valves but some have additional features which can be adjusted similarly.