A device for cleaning the surface of a tool for the forming of the surface of a large-area fiber composite material body using a highly-pressurized cleaning liquid, comprising - a nozzle support rotatably mounted on a central bearing, - at least one jet nozzle held in an arm (5, 6) of the nozzle support, from which the highly-pressurized cleaning liquid exits during operation, - a control unit for controlling the pressure of the cleaning liquid to be applied, - wherein the nozzle support is enclosed by a housing, which is provided with an opening toward the surface to be cleaned of the tool, - wherein the housing is attached to a suction unit, using which an interior of the housing, in which the nozzle support is arranged, can be suctioned off, - wherein the interior of the housing is connected via a pressure valve to an external environment, - wherein a shape-flexible liquid-tight seal (20, 21) is arranged at the end of the housing forming the opening, using which seal the space between the nozzle support and the surface to be cleaned of the body can be sealed off from the external environment, - wherein the housing has a double-walled lateral surface, having an intermediate chamber formed between an outer wall and an inner wall, wherein a shape-flexible seal (20, 21) is arranged in each case on the outer wall and the inner wall, characterized in that - the control unit has at least two pressure range settings, wherein in a first pressure range setting, the pressure of the cleaning liquid exiting from the at least one jet nozzle is set in such a way that fiber composite material residues are removable from a surface of the tool coated using a release agent without damaging the release agent and, in a second pressure range setting, the pressure of the cleaning liquid exiting from the at least one jet nozzle is set in such a way that the release agent is removable from the surface of the tool using the at least one jet nozzle - wherein the outer wall and/or the inner wall is designed as rotatable about an axis of rotation (Dz) of the nozzle support. - a nozzle support rotatably mounted on a central bearing, - at least one jet nozzle held in an arm (5, 6) of the nozzle support, from which the highly-pressurized cleaning liquid exits during operation, - a control unit for controlling the pressure of the cleaning liquid to be applied, - wherein the nozzle support is enclosed by a housing, which is provided with an opening toward the surface to be cleaned of the tool, - wherein the housing is attached to a suction unit, using which an interior of the housing, in which the nozzle support is arranged, can be suctioned off, - wherein the interior of the housing is connected via a pressure valve to an external environment, - wherein a shape-flexible liquid-tight seal (20, 21) is arranged at the end of the housing forming the opening, using which seal the space between the nozzle support and the surface to be cleaned of the body can be sealed off from the external environment, - wherein the housing has a double-walled lateral surface, having an intermediate chamber formed between an outer wall and an inner wall, wherein a shape-flexible seal (20, 21) is arranged in each case on the outer wall and the inner wall, - the control unit has at least two pressure range settings, wherein in a first pressure range setting, the pressure of the cleaning liquid exiting from the at least one jet nozzle is set in such a way that fiber composite material residues are removable from a surface of the tool coated using a release agent without damaging the release agent and, in a second pressure range setting, the pressure of the cleaning liquid exiting from the at least one jet nozzle is set in such a way that the release agent is removable from the surface of the tool using the at least one jet nozzle - wherein the outer wall and/or the inner wall is designed as rotatable about an axis of rotation (Dz) of the nozzle support.