daveyclimber
Well-Known Member
I have a quadrigage and the 600 psi guage will not indicate when unit is hooked up to diagnostic fittings. I have removed the guage and plumbed it to an air supply and it appears to work fine independently. I noticed there are valves inside the body of the unit so each guage isnt damaged by overpressure. Looks like a screw and spring. Are these adjustable or able to be recalibrated?