Slide off interior knob remove rose remove screws to take off mounting plate not shown knob ready for disassembly note cotter pin remove cotter pins some use a wire clip depress latch retractor and slide sleeve off sometimes you have to turn to get it to slide off.
How to remove a door lock cylinder without a key.
Some trim may even twist off by hand.
Since we don t have the key for this tumbler we have to remove the pins the hard way.
Pull the two halves apart out of the hole in the door.
In just three quick steps you can remove an existing cylinder lock for re keying or replacement.
That will allow you access to the pin springs the top pins and the bottom pins.
These are the screws that hold the lock and the door together.
Pry the trim from around the handle or lever using a flat screwdriver.
Look for screws hidden underneath.
Start by using your phillips head screwdriver to remove any visible screws from the interior side of the door.
To remove a cylinder lock you ll need just a few basic tools.
You can see the pin springs sticking out in pic 2.