51Maintenance and Care5.5.2 Adjust Sweeping TrackAn adjustment device allows adaptionto different sweeping conditions. Thesweeper roller has to be adjusted fornormal use and with regard to a low de-gree of wearing as described in the fol-lowing.Check the sweeper adjustment on levelground as follows:Before checking:Mark level surface for checkingsweeper adjustment by chalk(1000 x 300 mm).Drive sweeping roller over un-derline floorspace.Check inflation pressure oftyres (6bar).Air tyres only.• Secure machine by engaging park-ing brake.• Lower sweeper roller and let it rundry.• Lift sweeper roller and forward theSweepmaster B1200 RH a bit.With the correct sweeper adjustmentthe prallel sweeping marks have tobe appear on the floor (sweepingtrack).The sweeping track width is to be70 mm with the Sweepmaster B1200RH.The sweeping track width can be ad-justed at the star-shaped knob (Fig. 16/1) as follows:• Stop machine and pull key switch.• Engage parking brake.• Open seat hood.• Turn star-shaped knob (Fig. 16/1)to the left = wider sweeping tackto the right = smaller sweeping track(Sweeper adjustment sticker (Fig.16/2)Fig.16• Check sweeping trackWith one full turn of the knob,the track widens or broadensby approx. 10mm.When exeeding the sweepingtack width the sweeper rollerwearing increases as well asthe load of the drive.21