A friend of mine is going to give me an old Dayton 8F047 which I would like to recycle, but it is now obsolete and I cannot find anything other than a schematic which is reproduced below.
It looks like a separately excited DC motor aka "universal motor", which also works with AC, and I'd just need to wire the auxiliary and main windings in series to make it work I think. I assume the start switch (which is really illustrated like that...) is a physical external button (please shout if it is an internal component essential to how it works), but I can't make sense of the so-called "protector" (which is illustrated as a circle) which is in the way of the main winding, so I'm confused now. I don't want to try things randomly and burn it...
I found this and that on the internet, but I don't know how grounding either end of the auxiliary without supplying it with any power can change its direction, and I don't know what's inside the UL Limit.
What is this type of motor and how am I supposed to control it?