Latest key cam issues

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The keycam may have failed, example here, the latest design keycam can be easily identified as the colored changed to black. Replace either the keycam or chassis as needed to r...
 This could also happen if the tailpiece isn't installed in a KIL, FSIC, or SFIC cylinder.  The FSIC driver also could have come loose from the core in the spindle.
 The Schlage ND75 and ND95 locks require the chassis to be assembled and timed correctly for operation.  If the chassis has to be disassembled for any reason please refer to the Assembling Schlage ...
To convert from a ND95 to a ND75 remove the outside keycam and replace it with the N123-009 keycam.
To convert a Schlage ND80 to a ND70 you can replace the keycam or chassis and use your existing trim. Ordering Instructions: Keycam only: N123-010 Chassis and springcages: ND70LD LLL 626 LL...
A design change occurred in 2001 to address a locking/unlocking issue with the discontinued D73 lever locks.  This included modifying the cam and plug, spindle and using a different plung...
A keycam is a sub component inside a cylindrical chassis (such as AL or ND) that provides the interaction required to lock and unlock the chassis.
See here for standard ND Keycam part numbers and what functions they belong to.See here  for special ND Keycam part numbers and what functions they belong to. 
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...