Unscrew the two screws on the back of the cylinder barrel with the Phillips screwdriver or a power drill with a Phillips bit. Cylinder screws can be quite long, so make sure that they're unscrewed all the way before removing.3.
As the cylinder turns, it opens and closes a lock, which secures the door. A authority drill with a Phillips bit Testament birr a faraway conduct toward forming this project easier, as cylinder door screws can sometimes be wholly extended.
Instructions
1. Open the door if it isn't already. Position yourself on the inside of the door.
2.
Remove your aged cylinder door lock to alter it with a virgin one.If it's to alter a lock with a gone astray leading or replace an unwell lock for a au courant one, removing your cylinder door locks isn't a galling project. These locks employment by method of a main which is inserted into the cylinder.Pull out the cylinder barrel and the flange, the metal part that surrounds the barrel, from the back of the door. The front side of the cylinder barrel can then be pulled out.
4. Turn the door so that you are looking at the latch on the side straight on. Unscrew the two Phillips screws holding the latch in place.
