Abstract: The present invention relates to a process for positioning of empty tubes (2) on a tube conveying device (12) across from a grasping device (30), which is installed in particular on a service unit (3) capable of traveling alongside a plurality of adjoining spinning stations (10). The empty tube (2) conveyed by the tube conveying device (12) is stopped by a stop (4) in a defined position at the work station (10) where the empty tube (2) is needed. At the same time, a tilting moment in the direction of the tube conveying device (12) is exerted upon the empty tube (2) while it is braked. The tilting moment is applied to the empty tube (2) at its leading end (24) and is increased during braking of the empty tube. To carry out the process, a stop (4) can be moved on the service unit (3) into the conveying path of the empty tube conveyed by the tube conveying device (12), the stop (4) being associated with a tilting moment in the direction of the tube conveying device (12).