Yale YRD634 - Test Thumbturn

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P/N YRD604-KF-ZW-0044 Rev A
If deadbolt latch does not lock or unlock with the thumbturn (from the inside):
• Ensure that the deadbolt latch is centered in the face bore hole;
• Ensure that the tailpiece is positioned horizontally and inserted through
deadbolt latch slot (step 6, point 2).
Smooth deadbolt latch operation will enhance your battery life.
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Test Thumbturn