deadlock plunger stuck

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Check the following: Debris in the cylinder The cylinder cap could be too loose Incorrect pinning of the cylinder The cylinder plug is not returned to the neutral position with the cylinder s...
AL-Series and discontinued D Lever-Series locks use castle nuts to hold the chassis to the spring cages and to keep the chassis positioned in the door. This causes confusion at times when the lock ...
After installing a classroom deadbolt, there is potential for the thumbturn to project the bolt only, get stuck in one position, or move both directions but not move the bolt.  These are caused fro...