How to adjust pressure cut off IR 375 ?
by Rory Mahaney
IR 375 Diesel driven, screw compressor; pressure switch adjustment:
Compressor runs great.
Recently replaced pressure tank filter to resolve blotter test issues (oil in the blast air) and it fixed the problem.
I want to set the performance pressure to 145psi. Currently, I have to keep the air outlet valve open to prevent the pressure release valve from popping off at max pressure on the gauge (150psi) and spraying hydraulic fluid everywhere.
How do I adjust the pressure cutoff, and is there anyway to test the electronic pressure sensor located near it in the same line on top of the hyd/air pressure tank?