Quick lesson in locksmithing.
How to change door lock cylinder without key.
How to remove a door lock without a key.
Look for a small set screw at the base of the handle.
Insert a flatheaded screwdriver into the spindle housing hole.
The pin springs top pins and bottom pins all make up how the lock works.
Open the door and look for the latch plate along the door s edge.
Insert another flathead screwdriver under the edges of the tabs holding the lock cylinder in place within the housing.
The top pins and bottom pins line up along the shear line when a key is inserted allowing the lock cylinder to spin freely.
Changing an interchangeable lock cylinder 1 remove the flat screw under the latch.
When the key is aligned and removed the pin springs push the top and bottom pins down locking the cylinder in place.