I have this air cleaner (see attached) I've always thought it to be an oil bath, but I can't seem to figure out how to "load" the oil. It doesn't separate to reveal an internal bowl like some I've seen. I want to use it on my 216 but need some instruction!

Thoughts?
Attachments
IMG_6592.jpg (299.05 KB, 226 downloads)
IMG_6591.jpg (362.47 KB, 223 downloads)
IMG_6593.jpg (296.33 KB, 223 downloads)