Recently bought an M4050 and now bottom light on three light display on left of instrument panel has come on. I don't have a book and the lable is gone so I don't know which light it is. According to a blow up of the part on the kubota site, the bottom is the PTO, but I am not sure and that may be wrong. Everything seems to be working, and I am only worried that it might be the oil, although the motor is not knocking or rattling (at least not yet). Does anyone know which light is which on that panel? I would appreciate the help.