Check the timing first, Where can I find timing instructions for the Falcon T lock?
The keyspindle assembly for the T/RU571 and the T/RU561 was redesigned on 09/04/12 in order to resolve issues with both functions. Locks manufactured prior to this date have potential for the following issues.
Replace the lock chassis as necessary for any T locks exhibiting this issue. RU locks need to be replaced entirely.
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