Use a phillips head screwdriver to unfasten the two or three screws located on the inside knob plate.
How to change a lock from an original door.
Cylindrical door locks for entry doors are internal keyed locking mechanisms.
They utilize an internal lock that interacts with the trim of the.
Step by step instructions on how to change a door lock.
Remove the screws from the old lock on the inside of the door.
Then remove each side s door knob by pulling them away from the door.
All you need is a screwdriver and the replacement lock.
The most comprehensive method of ensuring security it involves removing the existing lock from the door including the handle if it s a handle lock combo and then installing a brand new lock in.
Remove the latch assembly doorknob.
It is as simple as changing 3 screws removin.
Remove the two screws from the latch assembly on the side of the door.
For rekeying the lock cylinder the locksmith must bring the lock to the unlocking position.
Dump out the old pins insert the new key and use tweezers or small needle nose pliers to match the new colored pins to the color code on the special instruction sheet.
If your new lock is the same brand and model as the old one you may be able to keep your existing latch plate and strike plate.
You may also need to use a wire tool or a paper clip.
How to change the lock cylinder in an entry door.
Remove the strike plate on the door jamb as well.