4. Take out the latch-cover screws and remove the latch-cover, latch-spring, and latch.
5. Take out the stop-screw and remove the stop.
6. Take off the carrier-ring.
De Bange Obturator.
7. Remove the spline-screw and take off the nut.
8. Take out the spindle.
9. Take out the spring.
10. Take off the obturator cups and pad.
Freyre Obturator.
7. Remove the spline-screw and take off the nut.