lever does not open latch

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- AD Series and CO series products require that the Night Latch (NL) screw is installed in the exit device.  Be sure this screw is installed- Exit hardware and strike must be properly mounted ...
Von Duprin does not offer any lever trim or pulls that through bolt to the Guard X device.  Ives has the 8102-6 and 8105-6 pulls that can be lined up with the mounting screws of the exit device b...
The MA lock is field reversible.  The process involves three potential steps depending on what hand is needed. Rotating latchbolt - Changes swing of lock.  ex (RH to RHR) or inswing vs outswing ...
The storeroom lock function is described as follows: Latch bolt operated by key from outside or by operating inside lever. Outside lever is always inoperative. The following are storeroom functi...
To convert the Von Duprin 9975NL(Night Latch or Storeroom) to 9975L (Classroom) exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL ...
To convert the Von Duprin 9975L to 9975NL exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL screw on 7500 mortise lock counter clo...
The 98/99 rim and vertical rod exit devices are shipped with NL drive screw to function as a Night Latch. To convert the device to Class Room, remove the NL Drive Screw on 98/99 center case ass...
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...
Latch retraction issues at time of installation could be caused by incorrect handing of the lock chassis.  Move the driver to one of the following positions as indicated below: