Originally Posted by
merziac
The "fixed" cup ALWAYS comes out for proper service of the cup and BB shell threads, inspect, clean and torque, period.
Any other version is neither complete or correct.
I don't agree. The fixed cup is poorly designed for easy removal, and if it is a chromed steel cup in a steel frame, there is nothing happening between them that needs servicing. Everything necessary for bearing service can be accomplished with it intact, and that is the way bike shops do it.
Risking damaging the frame and cup is pointless.