mortise lock with entry lock function

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Apartment Corridor Lock function is defined as a lock where the latch bolt operated by lever from either side, except when outside lever is made inoperative by a stop or mechanical means other than...
MA581 is a Storeroom function mortise lock.
MA581 operation: Latchbolt operated by key from outside or by operating inside knob/lever. Outside knob/lever is always inoperative. Auxiliary latch deadlocks latchbolt when door is locked.
The following steps are required to convert the Von Duprin 98/9975L from classroom to night latch function: Order new 996L-NL-M trim and reset NL drive screw in mortise lockbody as set from...
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...
Schlage has conversion kits to convert the classroom L/LV9070 to the classroom security L/LV9071 and the classroom holdback L/LV9076 to the classroom security holdback L/LV9077.  The...
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...
See Step 3 of the mortise lock reversing instructions(D-4010) which shows function conversions and what part(s) are needed if any are needed.
The MA lock does not have Vandlgard or a breakaway trim feature, however, the lever spindle on the MA lock will shear if too much force is applied in order to prevent internal lock damage and resis...
L9080 is a mortise Storeroom Lock Latchbolt retracted by key outside or by knob/lever inside. Outside knob/lever is always inoperative. Auxiliary latch deadlocks latchbolt when door is clo...