Hello dear people, we also took over a compressor with us when taking over a workshop, which throws without complaint and powerfully. I would now like to make an oil change. However, I did not have a manual about it, nor did I get an answer on request from the manufacturer Chiron in Tuttlingen. It’s understandable… the part has now already been on the hump for a few years. The previous owner had definitely made a change, but I can’t reach it. o simple. The filling quantity should be indicated on the crankcase if I see it correctly. And I suspect that the oil drain screw is the one that has a red dot on the side of the photo. Maybe someone has a similar compressor or even a chiron, and could help me if that fits. Next problem would be the oil…because unfortunately I don’t have any documents and I don’t find any manuals on compressors with a similar machine, I’m now at a loss what kind of oil ic h. Maybe someone can say something. I would be very grateful to you. Greetings Ben