Not sure if your model has this, but my grand has a 3 pt shut off valve located at the base of the seat, right at your heals (open station tractor). If the control knob gets spun to the closed position - you have no 3pt control.
ok i found that there is a in line screen that was plugged. I flushed the system cleaned the screen and i now have the 3 point working .
such a simple fix !!
:thumbsup: