anyone know what the screw is for under the reg.gauge,,small grub screw in the center.(i took it out to clean bore) & now my reg.gauge will not show psi???
i removed, cleaned the bore where it lives & replaced..now no psi on gauge..my question is why is it there? how do you adjust?? just leave loose enough to let air to reg??my reg goes up 20-30-bar over nite...i am just grasping for straws,,,,, thanks