Thread: Need help wiring a new pigtail and motor on compressor

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Hi All,
I just picked up a Rol-Air industrial compressor, There is no model number that I can find on it, but it was build in 1977, Its a 1 1/2 hp with a 20gal? tank.
My problem is the motor was bad, and there was no "pigtail" cord on it, so I bought a New Baldor 3 Phase 1HP 1725RPM Industrial Motor model BM3116T. The problem is I have an old pigtail from a dryer I was going to use, it has 3 wires and the plug in looks like this
L Only the "L" is backwards.
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Now my question is there are 4 screws where it hooks up. They are "Line" "Load" "Load" "Line". Now what wire hooks up where for both the pigtail and for the motor? And do I need a newer pigtail with the 4 wire? or is the 3 wired pigtail fine?

Compressor looks like this

Thanks
Tim