Oil overfilled on new compressor

by Erin
(South Africa )

50lt, 2hp compressor oil sight glass

50lt, 2hp compressor oil sight glass

Hi Bill. I purchased a 50lt, 2hp compressor.


Nowhere in the operating manual did it say how much oil to add or that the oil level should be within the red circle on the clear plastic level indicator.

I proceeded to fill the sump right to the top of the indicator. I ran the compressor for approximately 15 minutes at various intervals just to test.

It didn't sound right to me so I stopped and googled the filling process(which I should have done in the first place). I removed the sump plug and drained to the correct level.

My question is, will I have damage from running it for 15 minutes with the oil overfilled?

Thanks, regards Erin. South Africa

Comments for Oil overfilled on new compressor

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Jul 28, 2016
Oil overfilled on new compressor
by: Erin

Much obliged Bill! All the best.

Jul 28, 2016
Compressor break in
by: Bill

No, if their manual doesn't specify it, then it's possible that they've done the break in already.

Use it, and deal with any issues that crop up, as they do.

Good luck.

Jul 28, 2016
Oil overfilled on new compressor
by: Erin

Hi Bill. Firstly, thank you for replying to my question so promptly.

The user manual does not mention anything about opening the drain valve and running with it open for a break in period. It only mentions opening the valve after use periodically(more than an hours use)to drain any condensate from the receiver?

Would you suggest that I run it with the drain valve open for 30 minutes for good measure anyhow?
Again, thank you for your time and advise.

Regards, Erin

Jul 27, 2016
Oil damaged compressor?
by: Bill

Fifteen minutes with too much oil in the compressor sump doesn't sound enough, to me, to do serious damage.

The proof is in the running.

Is the "doesn't sound right" gone, or is there still something about the sound you don't like?

What did your manual say about the air compressor break in period? Quite often it suggests running the compressor with the tank drain open for 30 minutes as a break in.

Not doing that if it was suggested may also have contributed to your unusual sounding compressor.

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