how to chnage pressure

[jokerplayer22]

hey i just got my AIR and i was woundering how to change pressure and see it. I looked through the online manual and turned lcd screen on to output..... and turned the grub screw but it still said lo-p so i was woundering do i need air in the tank for it to read????????? please help me im new to the AIR Thanks

[Emmit]

yes there must be air in the tank for it to read out...with no air how are you going to know what your pressures are???

[jokerplayer22]

i figured that out thanks though

[fox_boy338]

if i tighten the allen screw of the front of the tank will it raise or lower the pressure?

[Emmit]

it is labeled on the retaining nut on the front of the reg

however the answer is in causes the pressure to be raised.