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EN 46091-1 Pressure Regulator Adjustment

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Some EN 46091-1 regulators may have the adjusting knob riveted in place. The rivet head must be drilled out with a 5/16 inch drill bit before adjustment. Do not drill more than 1/8 inch in depth, or just enough to remove the rivet head. The rivet shaft does not have to be removed from the regulator.

  1. Connect the EN 47603  compression gauge adapter to the EN 46091-1  gauge set outlet and connect shop air to the EN 46091-1  air shutoff valve.
  2. Open the shutoff valve, then slowly adjust the regulator on the EN 46091-1  until the gauge reads 69 kPa (10 psi).
  3. Close the air supply valve and remove the EN 47603  from the gauge assembly.
  4. The gauge set is now calibrated to perform the test.
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