- 1). Open the door. Put the key in the lock and turn the key so the deadbolt is extended all the way. Remove the key. Remove the screws on the face of the existing lock using a Phillips screwdriver. Pull out the existing lock from the door.
- 2). Place the lock trim ring against the exterior of the door. Slide the outside of the Schlage lock into the door so that the pin on the lock slides into the hole in the lower portion of the deadbolt latch. Hold the exterior portion of the lock still with one hand.
- 3). Slide the interior section of the lock onto the door. Install the screws into the lock and thread them into the exterior side of the lock so that both halves of the lock are sandwiched against the door. Tighten the screws with the Phillips screwdriver.
- 4). Insert the Schlage key into the lock and test to make sure it is working correctly.
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