Kubota b2650, bx2200, L3940 (gone), New Holland FWD TN85, RTV 900
I set mine at whatever rpm it takes to spin the back pto 540 rpm. I think it's about 2400 rpm. I'm not sure what the front pto speed is when the back is 540 but the torque should be the same. You can punch that rubber button to shift b/w engine rpm and pto rpm.