I got one of these for free. I don't know how old it is, other than
Hobart made it. When plugged in, it won't turn on. It doesn't trip the
breaker, so it doesn't look like the brushes are at fault; I checked
those anyhow and they don't seem to be worn down to stubs -- not that I
really know if they are good anymore. I'm thinking either the power
supply or the motor is busted. My bet is on the motor, of course.

I'm not very certain how to get to the motor without breaking something.
I try to verify something is the way it seems to be before I try to
force it, so here I am. I got the mixer top removed from the base, and
the back part of the top is off. I got the metal wrap-around removed;
it's the piece that shows the speed settings, and has the logo on it. I
think this exposes a two piece assembly. It seems to budge a little if
I wedge a screwdriver in there, but it certainly doesn't just open up.
Do I wedge that open, or is there something else I am supposed to do first?