trouble installing 40-192

A quick learner from maryland says:
I installed my 40-192 which arrived yesterday (order 658171). I cannot operate the deadbolt with the thumb knob without the key inserted. In other words the only way the deadbolt moves is with the key inserted. Help!
Thank you.

BTW: there were no installation instructions enclosed.
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Dave Sr. from SWISCO responded:
I believe the problem is in the tail on the back of the key cylinder. You will need to take the lock off and turn the tail 180 degrees for the lock to work with out the key. With the handle off the door, turn the key cylinder 180 degrees and then try it.
A quick learner from Maryland says:
Worked. Ty
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