How to remove the oldest wooden door locks

First of all, you need to use a plum screwdriver to remove the panel of the security door lock, and remove the lock cap, and then use a hammer to knock the lock around, so that you can remove the lock cylinder, if you need to install a new security door locks, you should prepare in advance the appropriate size of the lock cylinder and lock, replace the new lock cylinder and lock, the set screws will be Tighten the fixing screws after replacing the new lock cylinder and lock body.