FX Lowering the Pressure on Huma Air Replacement 1st Regulator

[KvnMul83]

Bought a Huma-Air Replacement 1st Stage Regulator for FX M3

Can I lower the preset pressure on a Huma 1st Regulator for the FX M3 Impact?

It was sent it to me with the set pressure of 173 BAR;

 

[Shaky2]

They have plenty of information on their site to adjust it if its possible

 

[KvnMul83]

They have plenty of information on their site to adjust it if its possible

Having a hard time finding the right article; looking for FX IMPACT M3 First stage Regulator; I see INCREASE instructions; I want to DECREASE on this part

 

[weevil]

Turn the screw clockwise to decrease - 1/2 turn is around 30 bar