919.176930 What amount of oil for this compressor 20 gal, 3hp

What is the amount of oil this uses? Can not locate the manual. This model is from 1986.


Can this model be adjusted to begin cycling at 90psi? It currently cycles on at 80 psi.
TIA






Bill answers...

I'm surprised that there's no indicator on your compressor as to the oil level. Check carefully for a sight glass or dipstick of some kind. Most units have some way to tell.

Sorry, no way I can tell you how much oil it requires.

As to the cut-in pressure setting, most pressure switches are adjustable. You'll have a high pressure setting and a low pressure setting nut under the pressure switch cover. They are likely covered with a "sticky" to prevent their adjustment.

If you can't find that, take your unit to the local compressor repair shop and ask them which of the two nuts you adjust for the cut-in pressure increase.

I don't recommend that you change factory settings, however. They are set there for a reason.

Good luck,

Bill

Comments for 919.176930 What amount of oil for this compressor 20 gal, 3hp

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Jan 27, 2011
Oil Capacity.
by: Bob

the oil capacity for the compressor is 16 oz.

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oil leaking out of fill cap

by JR
(Mesquite, Texas)


when i start my air compressor model 15310, oil leaks out from top of fill cap. what causes this?
Air compressor has never been used.
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Bill says...

JR, you may have over filled the oil or you may have a plugged oil fill cap vent.

What does the dip-stick tell you in terms of amount of oil in the sump?

Cheers,

Bill

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Oil change - I want to do an oil change

I want to do an oil change, but there is no dipstick.

It leaks water also.

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Bill says...

I don't know what not having the dipstick has to do with the oil change. At the base of the compressor pump will, likely, be a plug which, when removed, allows all the oil to leak out.

If there is no sight glass, and you are not sure how much nice clean new oil you need to add, keep the oil that drains out and measure that amount. Maybe add just a tiny bit more to make up for the oil that didn't drain.

What leaks water, and where?

Bill

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After a hour of running the room has a haze and odor.

by Luke
(Wisconsin)

I bought a new compressor and after about an hour of running there is a slight haze in the room. I have checked the oil, air filter, and made sure there are no leaks.

I have also notice that everything in the room is now covered with a black residue.

The unit purchased was a Modlel No. 921.16474 - 27 Gallon.

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Bill says...

Luke, what is it that you are using the compressed air for?

It is likely that oil is getting into the air stream, and blowing out into your room with the compressed air.

The problem may disappear after more use as the compressor wears in.

Likely cause of the oil in the air is the cylinder to piston seals are leaking, and / or overfilling of the oil sump, assuming it is an oil lubed compressor.

The oil haze (if that is what it is) isn't good to breathe, so for now, you should be wearing some sort of breathing filter to take out the oil aerosols so you don't ingest them.

Good luck.

Bill




Oil lubricated, singe stage, Belt Drive, Electric.

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