deadbolt turns loose

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This change was implemented in firmware package CO.A.6 (or later) to help the customer in the communication and coupling process between the CO200 (CO250) and the hand held device (HHD). ...
The green LED is to be lit up until the spindle (Triangles and Key Switch) are aligned properly; providing a visual indication of the problem.  
If the mechanical alignment of the triangles on the back of the outside escutcheon are not aligned, the CO200 or CO250 will not connect with the SUS/HHD and will appear to be unresponsive...
In firmware CO.A.6 (or later) the Schlage button on the CO200 (CO250) will turn green anytime that the spindle triangles on the front escutcheon are out of alignment or the mechanical key switch is...
When unlocking the CO200 door by mechanical key override, the green led will be continuously ON until the key is released. This will occur after firmware CO.A.6 (or later) has been installed int...
All functions except L9463 and L463: Add L583-363 to the part number 09-509 L583-363 for the turn only or L9453 07L 626 L583-363 with a lock The L583-363 part number is an option and can not...
Classroom Deadbolt Lock (ANSI Function: E0171 for B663/763/863 and D111, E0172 for B563 and D211 )Deadbolt thrown or retracted by key outside. Inside turn unit will retract bolt only. Bolt au...
The replacement for the D871 is the D271.  None of the parts are backwards compatible. D271 description:Thumbturn x Occupancy Indicator Deadbolt thrown or retracted by turn unit only. ...
The Falcon D400 and D800 series (including the D871) were discontinued in 2008.
To convert a single cylinder deadbolt to (or from) a classroom function, replace the complete inside turn unit per the following. Single Cylinder Deadbolt to Classroom: To convert from a B660/760...
The Schlage full size interchangeable core (FSIC) prepped B560F, B561F, and B563F deadbolts all require a UL fire cup (R) in order to be UL listed.  This fire cup is s...
The 09-900 mortise cylinder thumbturn has three handing options: right hand, left hand, and non-handed.  Handing of the cylinder is done by a check ball and spring placed in the housing a...
Also applies to the 09-900 XL12-196 mortise cylinder coin turn.