PTO shaft drive

The power take-off gear (10) has a power take-off clutch (42), a hydraulic supply and a hydraulically actuated piston (52) for activating a clutch disk pack (46) of the power take-off clutch. The hydraulic supply has a hydraulic conduit that hydraulically connects the hydraulic cooler with the clutch disk pack. The clutch disk pack is hydraulically connected with a hydraulic reservoir.