McCulloch Supercharger

[avantir3]

I have a McMulloch Supercharger with D O in the numbers. I was told this is direct oiling. I am asking if this blower has an oil pump inside it to pump oil without hooking up to engine. Someone asked me and I don't wish to take it apart as it is in good condition and turns firm and smooth. I was told to ask John Erb, but maybe someone else could answer this?

thanks

Roland