Abstract: A method is provided having the following steps: a) providing a drive-out device which has a drive-out punch that is actuated via a hydraulic cylinder; b) positioning the drive-out device between two adjacent wheel discs of the rotor such that a longitudinal axis of the drive-out punch is flush with the receiving groove of the blade to be driven out; c) adjusting a maximum pressure which can be applied to the hydraulic cylinder; d) extending the drive-out punch such that the drive-out punch presses against the blade root of the blade to be driven out with increasing pressure; e) reducing the pressure as soon as the pressure has reached the maximum pressure; and f) cyclically repeating the steps d) and e) until the blade has been removed from the receiving groove. A drive-out device is further provided.

Abstract: A method for cleaning a receiving groove formed on a rotor of an axial flow machine, the receiving groove serving to receive a blade root of a rotor blade is provided. In the method, an elongate base body of a machining tool, the base body having an abrasive surface at least in regions, is introduced into the receiving groove and therein is moved back and forth while machining is performed, wherein the outer contour of the base body is adapted to the contour of the receiving groove to be cleaned, in such a manner that when the base body is in the state inserted in the receiving groove it contacts the wall of the receiving groove in a substantially form-fitting manner such that it acts as a guide body during the back-and-forth movement. Also provided is a machining tool for carrying out the method.

Abstract: A method is provided having the following steps: a) providing a drive-out device which has a drive-out punch that is actuated via a hydraulic cylinder; b) positioning the drive-out device between two adjacent wheel discs of the rotor such that a longitudinal axis of the drive-out punch is flush with the receiving groove of the blade to be driven out; c) adjusting a maximum pressure which can be applied to the hydraulic cylinder; d) extending the drive-out punch such that the drive-out punch presses against the blade root of the blade to be driven out with increasing pressure; e) reducing the pressure as soon as the pressure has reached the maximum pressure; and f) cyclically repeating the steps d) and e) until the blade has been removed from the receiving groove. A drive-out device is further provided.