How to Make Adjustments to Yale Door Closers

Door closers are a familiar sight in most offices and buildings. These small hydraulic cylinders automatically close doors without slamming them. Closers with a back-check feature also keep the doors from opening too far and slamming into adjacent walls. The closers typically sit unnoticed as long as they are working properly. If the door stops closing the whole way, is difficult to open or slams shut, it may be time to adjust the hydraulic pressure in the cylinder. Fortunately, this adjustment is easy to make and only requires some basic tools.

Allen wrench
Adjustable or socket wrench

Instructions

- 1
  Turn the valve marked "Valve 1" with an Allen wrench to adjust the closing, or "sweep," speed of the door. Turn the valve clockwise to increase the sweep speed or turn it counterclockwise to decrease the closing speed of the door.
- 2
  Use the Allen wrench to turn the valve marked "Valve 2" to adjust the latch speed of the door. Turn the valve clockwise to increase the latch speed of the door or turn it counterclockwise to decrease the latch speed.
- 3
  Turn the valve marked "BC," if it has a back-check feature, with the Allen wrench. Turn the valve clockwise to increase the back-check range or turn it counterclockwise to decrease the back-check range.
- 4
  Open the door to the desired hold-open angle. Use a 13/16-inch socket wrench or adjustable wrench to tighten the hold-open nut.
- 5
  Check the door for proper opening, closing and hold-open. Adjust the settings, as needed, to achieve the desired operation.

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