This screw will be on the shank of the inside knob the one you use to lock the door.
How to dismantle door lock.
Use a screwdriver to unscrew the exposed screws at the base of the knob.
Use the flat head screwdriver to turn the spindle in the center of the door lock cylinder counterclockwise until it stops.
At this point the square tab on the spindle is aligned with the square.
Thy may be pretty grimy from their years of use.
You ll see the frame of the lock that holds the latch or dead bolt plug remaining in the hole.
Our quick video shows you how si.
Locate unscrew the set screw.
Removing a mortise lock requires no more tools than for removing a regular knob door lock.
Unscrew the door handles.
Lockpicking how to disassemble cylinder lock yale 6 pins.
Once your latch plate is off and your casing bolts are removed pull the 2 halves of the lock straight out on each side of the door.
Place the parts removed from the door and the door jamb onto a cloth rag.
Typically you ll have to turn the screws counter clockwise to loosen them.
Remove the screws on both sides of the lock.
Pull the thumbturn unit away from the inside of the door followed by the outside cylinder unit from the outside of the door.
If your doorknob has recessed screws you may need an allen wrench to remove them.
You don t need to remove that unless you are changing out your entire door lock.
Easy to follow guide on takes your locks apart.