Apparatus and method for starting a media line arranged on a union nut

The invention relates to a device (1) for cranking an on a media line (3) arranged in the union nut (5) with an extending along a longitudinal axis of the base body (7) which on one side a along the longitudinal axis through the longitudinal slot (9), and in its the interior has a receiving space (11) for receiving the media line (3), wherein the receiving space (11) at both ends (13, 17) seen of the base body (7) along the longitudinal axis of the end side open, and the longitudinal slot (9) is accessible and wherein the base body (7) at a first end (13) a nut (15) for receiving the nut (5) and at a second, the first end (13) along the longitudinal axis of the opposite end (17) an actuation contour (19 ) for a manual operation by a worker.