Insert a straightened paper clip into this hole and apply pressure to release the interior handle.
How to change office door lock.
Use a phillips head screwdriver to unfasten the two or three screws located on the inside knob plate.
This allows you to pull the door knobs off the door from both sides.
In apartment complexes this is now the most common way of changing locks on a door.
The prices of exterior door locks and interior door locks vary simply because they are meant to secure different things.
Regardless the type of lock that you want to change will play a huge role in the final cost to change locks.
Remove the two screws from the latch plate on the edge of the door and remove the latch from the opening.
To bump a lock the bump key is inserted into the keyway and pressure is applied via a hammer or a screwdriver.
Straighten a paper clip and insert it into the hole.
Exterior door locks tend to be exposed to much more than just foot traffic.
This is the easiest way to rekey your door if you re giving the cylin.
Remove the screws from the old lock on the inside of the door.
The pressure exerted on the bump key causes the key pins to push the driver pins above the shear line.
Begin by removing the screws from the door knob on the interior side of your door.
There may be a small pinhole holding the handle in place.
Apply a bit of pressure to the paper clip to trigger a release button inside the hardware.
Examine the handle and trim on the interior side of the door.
Then remove each side s door knob by pulling them away from the door.
Insert the pin straight through the lock cylinder to reach the lock s release mechanism.
Once triggered the lever or lock trim can be removed from the door.
This is a video on how to replace the key cylinder in a commercial storefront door.
In some cases door latch plate mortises might need to be cut or enlarged.
If any screws are exposed during this process remove them to release the lock and remove it from the door.