You don t need to remove that unless you are changing out your entire door lock.
How to take a lock off a security door.
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.
The pressure exerted on the bump key causes the key pins to push the driver pins above the shear line.
It is a good idea to pay attention to what you are doing to remove the old deadbolt if you are replacing it with a new deadbolt of the same brand.
Insert a straightened paper clip into this hole and apply pressure to release the interior handle.
Use your chosen tool to depress the button.
In this video we show you how to easily remove your old steel security door prior to installing your new woodguard security door.
Now that you ve located the slot you ll need a flat head screwdriver or a small pin paper clip or nail to press the release button inside of the slot these tend to be very small.
To bump a lock the bump key is inserted into the keyway and pressure is applied via a hammer or a screwdriver.
Examine the handle and trim on the interior side of the door.
Insert the pin straight through the lock cylinder to reach the lock s release mechanism.
Put on a pair of work gloves.
Fit the jaws of locking pliers at one of the bolt heads on the face of the frame and close the handles together.
You ll see the frame of the lock that holds the latch or dead bolt plug remaining in the hole.
There may be a small pinhole holding the handle in place.
At this point the interior knob should release from the door easily.
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.