Don't know how much oil is needed. No manual.

by Bradley D
(Oztralia)

G'day and thanks for a great website.

I've got a single cylinder 3HP belt drive air compressor. Not sure on the tank capacity but you might be able to tell from the pic I've included.

I don't have a manual and have used all available keywords on the compressor to try and locate one- to no avail.

It doesn't have a dip stick but, as you can see, it does have a oil window with a mark in the center. The red cap on the cylinder is where the oil goes in.

I was wondering how much oil I should put in it when I do an oil change? The oil level is currently halfway up the oil window, in line with the center circular mark.

Thank you kindly.
Bradley D.

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Bill says...

Bradley, while I cannot be sure, I can tell you that on my sight glass the "full" level is the center of the glass.

If your oil level is there, I think you should be OK. Don't let the level fall too far below the center point, and for goodness sake, don't overfill it. That causes problems too.

Cheers,

Bill