Goodness, that brings back good memeories. I bought my first one of these in 1969 when I was living in Tehran. At the time, it had no motor, but sat on the rails of the Emco Rec combi woodworking kit, and was driven off a shaft from the unit's single 3/4 HP motor. Two years later, having sold the combi and moved to Bonn, I bought the stand-alone Emco-Rex B20, and used it until 2003(!) when I sold it for more than I originally paid for it. It never gave me a single problem, and the width of the jointer compensated for the short tables.
The manual went with the machine, but I'd be glad to try to help with any questions.
Cheers and congratulations, Garrett