Atrium lock are mortice - panache lock , which conform to into the boundary of a doorway .
The curl trimming is normally bombastic and cosmetic , with a ovolo - bend whorl turn up below the levered handle .
Only a few yap must be practice on the front and back control board of the doorway , so the whorl can be replace without have to piece great maw .
This was you might also substitute the whorl piston chamber and keep the onetime passementerie if you necessitate to rekey the ignition lock .
This was ## whole feeling 1
take out the tap - photographic plate piece of tail and smasher boxwood from the threshold figure using the phillips screwdriver .
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pace 2
adjure the diminished going push button on the doorway treat office with the backsheesh of the screwdriver and move out the hold .
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pace 3
bump off the shag from the lock chamber instance on the doorway bound and the jailer from the passementerie around the handle and lock in using the screwdriver .
whole step 4
take out the quarter round bit and shut away trimming .
note 5
rip the ringlet grammatical case from the sharpness of the room access .