slide 114 which is engaged by an adjusting screw 116 rotatably supported on the holder 112 with the aid of the combination of the guide slide 114 and adjusting screw 115 received therein the guide rail 10 can be aligned precisely parallel to the cylinder axis of the swift arrangement 100 by a corresponding actuation of the adjusting screw 116 of the fastening devices 110 fastened to the two axial ends of the guide rail 10 since the two axial ends of the guide rail 10 can be moved back and forth in the radial direction by actuation of the adjusting screws 116 as is illustrated by the double arrow 119 in fig4 a during this adjusting process the cleaning portion 56 of the cleaning element 40 is retracted by actuation of the eccentric lever 60 as illustrated in a dashed line in fig4 a after adjustment of the guide rail 10 the slide 20 is moved to one of the axial ends of the all steel sawtooth arrangement 100 subsequently the guide rail 10 and thus also the cleaning portion 56 is advanced by actuation of the adjusting screws 116 of the fastening devices 110 until the tip of the cleaning portion 56 is positioned one to two millimeters above the tips of the all steel sawtooth arrangement 100 for monitoring the correct position of the cleaning portion 56 relative to the all steel sawtooth arrangement 100 a sensing gauge 120 see fig4 a can be guided between the all steel sawtooth arrangement 100 and the cleaning portion 56.