For utmost protection the door closer is certainly going to have a cover over it.
Overhead door closer adjustment.
The valve is an allen head screw.
Making an adjustment to a commercial door closer if you find that there is oil in the cover or oil on or leaking from the closer body stop right there you need a new.
To adjust the door closer.
Adjustable spring power overhead concealed closer built in positive back stop and hold open positions available.
If you can t see adjustment screws chances are the closer has a cover.
Position a stepladder under the yale closer.
Door closers usually come with two types of cover.
Storm doors have a connecting pin that can be set into two separate slots to change the tension on the door.
Some manufacturers include fastening straps so that the cover stays in its place all the time regardless of the situation it s going through.
Now that you have the cover off you should be able to see the adjustment screws.
105 back stop with hold open 105 back stop no hold open 90 back stop with hold open 90 back stop no hold open suitable for both center hung double or single acting and offset doors.
Climb the ladder and examine the closer.
If there is just one screw on your door closer turn it clockwise to increase the speed with which the door closes.
They should be marked on the closer.
If you find that there is oil in the cover.