Abstract: The invention relates to a clutch operating unit for engine-driven vehicles, the clutch of which can be operated arbitrarily as well as depending on a torque/speed difference occurring at the clutch. The clutch operating unit comprises an actuator on the gear box side and the engine side. On the actuator, chutes and counter chutes and contact surfaces are formed which mutually engage; the chutes, counter chutes and contact surfaces transmitting a drive torque when the actuators are rotated in a rotating direction over the contact surfaces and, when the actuators are rotated in reverse rotating direction, converting the rotating movement into an axial movement of an actuator by means of the chutes and counter chutes, the axial movement effecting the releasing of the clutch. The clutch operating unit is characterized in that the actuator (2, 5) on the engine side along with its outer bushing is arranged coaxially and rotatably relative to a gear box input shaft.