identifying ajustment screw

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The Von Duprin 7500 mortise lock body ships in the NL mode.  Either the function of 7500 lock body has not been changed to the Classroom function or the NL Drive screw is not all the way down. Step...
  Tips for changing the function: The NL Drive screw will not be visible when lock body is set to Classroom function There is locktite on the screw that makes it seem like its turned down enou...
An inconsistent opening is normally caused by the arm not being installed correctly. The arm must be installed while the operator gearbox is in the full open position, and the door at 90° open posi...
The installation of the arms with the Benchmark and Falcon Swing Door Operator is similar to the Sr. Swing Series . The arms are installed with the main activation input shorted, the gearbox at the...
How to:  What are the steps to adjust a door closer?Facts: All LCN and FALCON door closers will have 3 regulating valves and a spring adjustment.  All closers with a "Delay" feature ...