How To Adjust Door Closer Arm. Start with no more than 1/8 of a turn. Start with no more than 1/8 of a turn.
Locate the tension adjustment screw at the end of the pneumatic cylinder. Back check is the amount of resistance the door closer offers if it is thrown open by wind or vandals. Attach closer to frame with speed regulating valves toward hinge.
Now, instead of slamming shut, the door will slow down as it nears the door catch.
Begin by trying to adjust the bracket. Correct mounting and adjustment of this device ensures the proper operation of the closing fittings. At about 75 degrees, the door should start to slow down so that it does not slam into the surface behind or get caught by the wind. Make sure that you open the door completely.