I have the milwaukee ma957 regulator and on the instructions to set up it tells to turn the adjustment knob counter clockwise till loose and have the needle valve closed and then open the cylinder knob slowly. When I do, this just leaks(blows) out all the co2 by the opening pictured below. Is this suppose to happen? it still does this even with the needle valve opened and the bubbles will just stream out. Am I doing something wrong or is this unit broken. Before when I tried to adjust the low pressure gauge psi to lower it as I turned the knob more to the clockwise the air would come out of the hole.