In our TD90 2013 model tractor, there is something like a pin sticking out from the inside, just below the oil pan, in the place coming from the forward shaft. During the last spraying, we observed that oil leaked from there when we operated the PTO. Does anyone know the reason for this, friends, what is that place under the crankcase, why does oil drip from there? When the weights are equal, nh gets it because nh’s differential gives load to all wheels, at least 3 wheels blow at once, other brands are crossed.