A method for cleaning, by means of a cleaning unit, an application unit for applying a coating agent or impregnation agent,
- the application unit comprising a container for the coating agent or impregnation agent and a transfer wheel rotatably arranged in the container, wherein a part of the transfer wheel protrudes out of an opening of the container;
- the cleaning unit comprising a hood designed to cover the opening of the container during a cleaning operation, the hood having a receiving region for receiving has the part of the transfer wheel that protrudes out of the container opening;
- the application unit and the cleaning unit being arranged movably relative to one another, the application unit and the cleaning unit being movable relative to one another from a production position, in which the hood of the cleaning unit is away from the container opening of the application unit, and a cleaning position, in which the hood of the cleaning unit covers the container opening of the application unit.