Piste grooming vehicle having - a longitudinally extending support frame, - a tracked chassis mounted on the support frame, - a setting device mounted on the support frame at the front or rear, - an attachment device coupled to the setting device and configured for grooming and/or preparing a snow piste and movable relative to the support frame by means of a setting movement of the setting device, - and an energy supply unit configured for supplying the tracked chassis and/or the attachment device with operating energy, - characterized in that a quick-connecting system is provided having a first connecting device mounted on the setting device and a second connecting device mounted on the attachment device, wherein the first connecting device and the second connecting device are pivotable relative to each other about a pivot axis, and wherein the quick-connecting system is changeable without tools between a connected state in which the first connecting device and the second connecting device are mechanically connected to one another and a disconnected state in which the connection is cancelled, - in that the quick-connecting system has a hydraulic quick-coupling with a first hydraulic coupling unit and a second hydraulic coupling unit for hydraulic connection of the attachment device to the energy supply unit without tools, - in that the first connecting device has the first hydraulic coupling unit, in that the second connecting device has the second hydraulic coupling unit, and in that the two hydraulic coupling units (17, 27) are connectable to one another without tools in a fluid-transferring manner and disconnectable from one another by means of changing the quick-connecting system between the connected and the disconnected state, - and in that the first hydraulic coupling unit and the second hydraulic coupling unit are connectable to one another and disconnectable from one another solely by means of the relative pivot movement of the two connecting devices (12, 13) about the pivot axis. - a longitudinally extending support frame, - a tracked chassis mounted on the support frame, - a setting device mounted on the support frame at the front or rear, - an attachment device coupled to the setting device and configured for grooming and/or preparing a snow piste and movable relative to the support frame by means of a setting movement of the setting device, - and an energy supply unit configured for supplying the tracked chassis and/or the attachment device with operating energy, - characterized in that a quick-connecting system is provided having a first connecting device mounted on the setting device and a second connecting device mounted on the attachment device, wherein the first connecting device and the second connecting device are pivotable relative to each other about a pivot axis, and wherein the quick-connecting system is changeable without tools between a connected state in which the first connecting device and the second connecting device are mechanically connected to one another and a disconnected state in which the connection is cancelled, - in that the quick-connecting system has a hydraulic quick-coupling with a first hydraulic coupling unit and a second hydraulic coupling unit for hydraulic connection of the attachment device to the energy supply unit without tools, - in that the first connecting device has the first hydraulic coupling unit, in that the second connecting device has the second hydraulic coupling unit, and in that the two hydraulic coupling units (17, 27) are connectable to one another without tools in a fluid-transferring manner and disconnectable from one another by means of changing the quick-connecting system between the connected and the disconnected state, - and in that the first hydraulic coupling unit and the second hydraulic coupling unit are connectable to one another and disconnectable from one another solely by means of the relative pivot movement of the two connecting devices (12, 13) about the pivot axis.