New guy here. I know some may feel everything has been discussed about this topic but I have what is probably a dumb question. Assuming by having read the manual as well as an Operators manual , that the SAE 80 uses the same oil for both trans and hydraulic system. OK so I see the trans fill directly at top of case in front of seat on trans casing. I also see what appears to be a small (fill spout?) made into the hyd pump casting below the grip knob under the seat. Is it used to add , check the hyd fluid level at the pump? Or is the trans case the only area the SAE 80 is put in . Is that is the only reservoir for the complete hyd system as well as trans inclusive?? I find nothing in my manual or operator manual that actually mentions this. Appreciate the chance to ask someone here" in the know".