Cornelius 130R 3500 pressure relief valve

[cherbie]

Vintage Scuba Team,

Good afternoon.  I posted a few months ago and you were very helpful.  However I have been unable to correct my issue primarily because I am clueless about the unit.

I have a Cornelius 130R 3500.  It used to fill to 3100 PSI and now it only fills to 2500 PSI before the pressure release valve opens.  I am confident it is a relatively east adjustment based on prior input.

Does anyone have a  Cornelius 130R 3500?  Does anyone have a schematic?  I have been unable to find one.

Any input or advice would be apprecaited.

Thank you,
Chris

[SeaRat]

Chris, please try a search of these threads. I seem to remember this topic from about ten years ago here. Maybe Duckbill can also have some input.

John