I have a b3200 Kubota, I'm having issues when I lift it kicks back and if I have the tiller hooked up for weight I have to lift it every 10-15 min , anyone else experience this?
Is the handle moving or is the 3pt bleeding down?
Make sure the feedback rod for the 3pt is intact and working correctly also, had this problem on an older kubota B7200 and adjusting the feedback rod correctly fixed the dropping issue.
Not sure if the adjustment procedure is listed in the owner manual or if you'll have to get a workshop manual.
That model of tractor also had some jerky 3pt issues when new but should hold position.