With all 3 valves closed your 0523 should 'peg' the 30psi gauge and if it continues to run should shatter the vanes due to excessive pressure (>30psi). I would check the vanes for excessive wear and a rebuild kit is likely needed or you have an air leak somewhere but that is doubtful since you can only build 9psi at the manifold. Check the front end caps to make sure they are hand tight and O rings are not cracked allowing air to escape. Air can escape from loose end caps.

Last edited by Bill Cody; 06/27/11 10:00 AM.

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