Fire Door Closers Adjustment

Almost all door closers will have the above two adjustment hydraulic valves but some have additional features which can be adjusted similarly. 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.

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How to adjust a commercial door closer.

Fire door closers adjustment.

Door closers consist of a pneumatic cylinder which controls the speed of the door and a bracket which holds the cylinder to the door. Other door closer adjustments. 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. Look at the end of the cylinder closest to the bracket with the door closed to see the adjustment screw.

Spring adjustment is located on the end of the spring tube 5 32 allen wrench. The back check valve if featured will usually be set apart from the first two discussed and may be marked with a b or bc. It is used to adjust the spring strength force to close the door.

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