Couple 46 F5 ?'s

[MyTwOfOrDs]

So I picked up this 46 3 ton. I'm fuzzy on a few things.

Fuel gauge sends a steady voltage and peeks gauge to full with new sender and wires

The non bearing bearing. Ya the one that holds the fan. How often and amount to oil? It already smoked and I had to bronze bush

Knob on floor to right of gas pedal?????????????????????????????????

THANK YOU