Office doors use a pneumatic closer to open and shut the door. Typically there are three areas to which you can adjust the door tension or speed. Two screws are on one end of the closer for the sweep and latching power. An adjustment screw is on the other end or possibly on the top of the closer to adjust the back check, which is the tension you feel when opening the door that prevents the door handle from slamming against the wall behind the door.
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Things you need
- Step ladder
- Flathead screwdriver
Ask a helper to stand outside the door to prevent people from opening the door while you are making the closer adjustments. Close the door, and place a step ladder near the closer so you can reach the adjustment screws.
Locate the sweep speed adjustment screw for your closer. Most are on the latch side end of the door closer and have an “s” beside the screw. Some models include all the adjustment screws on the top of the closer.
Turn the adjustment screw one full turn clockwise with a flathead screwdriver to slow down the closing speed. Turn the adjustment screw one full turn counterclockwise to speed up the closing speed.
Find the latch speed adjustment screw on your closer, which is next to the sweep speed adjustment screw and has an “L” beside the screw. Turn the screw clockwise to slow the latching speed or counterclockwise to increase the latching speed, which is how quickly the door closes in the last 12 inches of operation.
Locate the back check tension adjustment screw which is usually on the opposite end of the closer. The back check screw has the letters “BC” next to the screw.
Turn the back check screw one full turn clockwise to increase the tension or counterclockwise to decrease the tension.
Move the ladder, and test your adjustments. Continue making adjustments until the door operates to your satisfaction.
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