Ingersoll Rand 185 blowing air out of pressure relief valve

1987 Ingersoll Rand 185 blowing air out of pressure relief valve.

The air compressor is starting fine but when i push the air button the pressure relief valve blows out air and oil

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Seperator
by: Carls421

You need to replace your seperator filter, its blocked and wont let air through it which causes the safety valve to blow

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Another solution
by: Anonymous

Had same issue diaphragm in unloader was torn cost about 60$ now works perfect.

Of course had to adjust regulator as well.

Could see where if regulator not working properly could cause same issue.

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IR 185 continuously builds air…
by: Anonymous

what if it’s not the diaphragm in the regulator? And has new separator filter and still keeps building air.

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Safety Valve
by: Carl

Depends on which safety valve you’re talking about…
The one inside the compressor or the one on the air receiver (tank)

Existing Ingersoll Rand P185 tow behind compressor pages:

• Ingersoll Rand P185 Tow Behind Compressor Parts, Manuals, Information
• Use ATF in a P-185
• Adjust air pressure on an I/R 185
• I/R 185 cuts out under load
• I-R 185 bogs down and dies
• Ingersoll Rand 185 pumping oil with air
• P-185 stalling
• I/R 185 shutting down
• Ingersoll Rand P185WJD parts catalogue
• I/R 185 spitting hydraulic oil
• Ingersoll Rand 185 intermittent shut down
• Ingersoll Rand P185 running hot & oil is dark
• Ingersoll Rand P-185 ran out of fuel and now won’t start

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