fabo farmers, what kind of tractor?

Do I understand it right that the pto's are always live? How do you hook up the attachments to them then? I assumed you had to move a lever or ???? to make them live.

Live PTO does have a lever to engage/disengage, but some tractors, (8N Ford for example), will disconnect the PTO when the transmission is in neutral/clutch depressed. Not very advantageous when you need to keep you PTO equipment running with the tractor stopped. By the way, the MF 135 should have power steering. That's a must have for any loader work.