Hatsan BullBoss regulator

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Good day all. I am having a bit of a hard time trying to understand exactly how to adjust the hatsan regulator. It says to turn the screw with slot clockwise for less output pressure and counterclockwise to increase output pressure. I see that the nut can also be turned and that which way I turn the nut the spring washers either expand or compress. Is there a specific way to adjust the reg. I’m trying to achieve an output pressure of 100 bars thereabouts. Thanks