[hdwarner]

make sure where it goes into tank there is a check valve , otherwise it will leak out of the compressor head when not running , and some check valves you can buy via grainger industrial if they still carry them have a built in blow off for easy starting
or your pressure switch may have a pressure relief

what this does is downloads the residual pressure in the compressore head for easier starting
i notice the motor is a duel capacitor so it is a single phase unit , i reccomend if possible to wire 220 volts for less amperes means less money out of pocket in electricity

now whats your plans to have a pneumatic hammer to forge with?