Oil-lubricated rotary vane vacuum pump

An oil-lubricated rotary vane vacuum pump comprising:

• a rotary vane unit having a rotary vane chamber and a rotary vane rotor,
• an oil separator device having a housing and being configured for separating gas and oil, by an air/oil separating element,
• wherein the air/oil separating element has a filter element which has a plug-in ring at an end that can be is plug-connected on a housing side to the rotary vane unit, which plug-in ring is designed for radial sealing and axial displaceability in an associated housing receptacle, and the filter element has a moulding for bayonet mounting, which moulding faces an end associated with an outer wall of the housing,
• wherein a mounting wall of the housing, extending at a distance from the outer wall of the housing, is designed to interact with the moulding of the filter element and to form the bayonet mounting,
• wherein a separate cover is provided, which permits a mounting opening, associated with the filter element, in the outer wall of the housing to be closed, and wherein the cover form-fittingly interacts with the filter element to secure the filter element against rotation.