Wish I could find a manual for this thing. Or service instructions or anything.
Not much out there. It has hypoid gear oil in it, which I determined by sniffing and rubbing (thick fluid with sulfur smell) and there is what is probably a fill level bolt, but it's all guesswork.
There's a few Japanese stickers but they're mostly safety warnings, telling you to not stick your arm into the rotating blades, yo.
