Ingersoll Rand MM75 air compressor has low exhaust pressure
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I’m seeking advice from all the experts here. We have two Ingersoll Rand MM75 air compressors at our station, and they are switched over every week. The air compressor that has been in use this week suddenly started showing low exhaust pressure. (Normally, one MM75 and one R90i compressor operate simultaneously at our site; when the MM75 with the low exhaust pressure is switched off, the problem disappears, so we believe it’s a fault with that particular unit.) There are no alarm messages from the compressor, and after shutting it down for inspection, we found that the oil level was a bit low. Even after adding more compressor oil, the issue persisted. I hope the experts can advise me on how to resolve this problem
First, check whether there is any issue with the oil quality； Second, check whether there are any leaks in the air supply line ； Third, check whether the air filter is dirty or clogged, etc ； Fourth, take a look at the minimum pressure valve ； Is there a problem with the startup pressure setting of the fifth controller? ；
Thank you, teacher. I’ll check as you suggested – the oil quality, air leaks, and the rebound pressure have already been checked before. I’ll take the device apart to examine the filter as well
The air filter is dirty; I just took care of it