Removing X stepper

[robertjenkins]

Hi
I need to remove/replace the X stepper on my micromill
I have removed the four screws that hold it in place, and it now rotates freely about the thread. But I can't see how to disconnect it from the thread (if that's what I need to do). There is a nut on the thread near the motor that I can turn but it doesn't seem to loosen the stepper. There is also a plastic cone, the fat end of which is on the motor, the thin end of which is at the thread. I feel that I should be able to remove but I don't know how.
The link in one of the sticky posts here to sherline that apparently shows the details is broken.

[MadeForThat]

On the "cone" that the motor is inserted into, there should be a small plastic plug on the top. If you pull this plug out you can undo the set screws on the coupler between the color and the leadscrew

[robertjenkins]

Thanks. Do you mean in the "wall" of the cone rather than either end? There are no plastic plugs but maybe they've already been removed because there is a small hole in each one. But the hole (on the X stepper) is facing downwards and I can't see what is beyond the hole. Feeling around with an Allen key I can't engage with anything. Can I disconnect the whole X table to get a better look?

[robertjenkins]

Scrub that - I've removed the whole mill from the case and have managed to disconnect the stepper