3 Lead Reversing Motor

Got this from the scrap yard, need some info on the motor like how do I hook up a manual switch for it, what type of switch, etc. Unless it was on a fairly long run I don't get why it used #10 wire for only 4 amps. Why is there no ground wire, was it relying on the flex conduit for the ground? . All made in USA; had a short section of 1/4" stainless cable on the drum. Pretty nice unit; if possible I want to make some sort of shop lift with it.

thanks, Brian

Electra-Gear...

3 Lead Reversing Motor