Yes, they're overfilled. You all guilted me into opening up the top and draining out the excess. I usually run them slightly over the mark due to slower reaction times (oh, crap, I guess that's too much) and a general apathy towards gearbox levels. The lower box was overfilled to the top of the window which worked out to 4oz. and the top one was the same level over but the gearbox is larger and that worked out to about 12oz over. I did find that the two main bearings are lubricated by oil being flung off the gears to the top where the oil drips into two holes which weep onto the gears - very precise. One was slightly blocked with swarf so that was good to find and clean out but otherwise the gearbox looked perfect. I could be wrong but I doubt there's too much issue with the gearbox being slightly overfilled. It's not exactly spinning at the speed of a motorcycle transmission and they last for years.
The upside is that I needed to top up the oil on the cold saw and now I have some extra.
Gregor
The upside is that I needed to top up the oil on the cold saw and now I have some extra.
Gregor