Use a screwdriver to remove all screws rather than a drill.
Remiving a mortise entrance lock from the door.
It may be very corroded and require a bit of persuasion to split the halves and remove from the deadbolt assembly.
Removing a mortise lock requires no more tools than for removing a regular knob door lock.
Removing a mortise lock.
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There may be a small pinhole holding the handle in place.
One of the few things graphite is good for is lubing the inside of a mortise lock body if it has a cylinder for a key lube with wd40 or similar light spray oil only no 3 in 1 no grease no silicone spray.
Key will spin without operating the deadbolt.
The lock is encased in this pocket making it a more secure locking method.
Remove the face plates prying them up with the screwdriver if needed.
Replace tailpiece on deadbolts and handle sets.
Replace the broken tail piece on key in knob or key in lever sets.
However many homeowners prefer the newer cylindrical type of lock set which doesn t require such a large pocket in a door.
Insert a straightened paper clip into this hole and apply pressure to release the interior handle.
Corrects the symptom where the key will spin without locking or unlocking the lock.
You need to remove the key set section as pictured on the left.
Remove the screws attaching the inside face plate to the edge of the door as well as the plates on the door faces.
A good way to clean out the lock body is with brake cleaner spray followed by wiping with a paper towel.
Pull the lock out of the edge of the door.
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Mortise locks may have wavered in popularity over the years but they remain a common way to secure a home.
If you re moving from a mortise lock to a knob set you ll need to first remove the mortise lock.
Insert the pin straight through the lock cylinder to reach the lock s release mechanism.