latch remains pulled in

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There is potential for ND40/ND44's manufactured around March 2011 to remain locked after egress, or after the latch is depressed.  There was an issue with the keycam that created a bind when l...
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...
The Falcon T lock will be featuring a new latch on June 10th, 2013.  The Falcon T lock remains a certified Grade 1 lock and is compliant with ANSI / BHMA 156.2-2011.  The revised loc...
If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...
Incorrect timing of the lock can cause the outside lever to retract the latch when raised up.  See instructions here (Step 16 and 17) to time a T351, T381, T561, and T571.  Also applies to the same...
To verify the timing on a T561, function test the outside lever after locking it.  To lock the key should only rotate 180 degrees (Not 360 degrees as Schlage does) A properly timed lock will n...
  Pushing on the push  bar or activating the EL/QEL or the trim on Von Duprin XP98/99 exit device does not retract the latch, it releases the latch only. Door must be pushed or pulled when device o...