2700 2200 PTO Shifter Speeds
Sitting on the seat there is a PTO shifter lever to the left of you and also a lever beside the main gearshift.
Lever to the left
Forward is Low
Backwards is High
Lever beside the shifter
Forward is One
Rearward is Two
Combine those two shifters to get a total of 4 different speeds. Low & Two should be closest to 540 RPM.