SW4000 USER MANUAL - Nilfisk PARTS - Nilfisk-Advance

USER MANUALENGLISHMAIN BROOM HEIGHT CHECK AND ADJUSTMENTNOTEBrooms with harder or softer bristles are available.This procedure is applicable to all types of brooms.1. Check the main broom distance from the ground, accordingto the following procedure:• Drive the machine on a level ground.• Engage the parking brake.• Lower the main broom and turn it pressing theaccelerator pedal for approx. one minute. Do notoperate the broom continuously in order not to overheatthe drive motor braked.• Stop and lift the main broom, then move the machineand switch it off.• Check that the main broom print (A, Fig. 4), along itslength, is 2 to 4 cm wide.If the print (A) is not within specifications, adjust the mainbroom height according to the following procedure.2. Turn the knob (A, Fig. 5) as shown below:• to increase the print width, turn the knob counterclockwise• to decrease the print width, lift the broom with the lever(63) and then turn the knob clockwise2 - 4 cm0,8 - 1,6 inFigure 4AP100593NOTEThe knob can be used both to adjust the print and toadjust the broom according to the bristle wear.3. Perform step 1 again to check that the main broom is at thecorrect distance from the ground.4. When the broom is too worn to be adjusted, replace it asshown in the next paragraph.BNOTEAfter the main broom height has been adjusted,check that the broom overload warning light (75)does not flash in the first minutes of operation.Otherwise the pressure on the floor must be reducedby means of the adjusting knob (62).NOTEIf it is not possible to adjust the print (A, Fig. 4)properly, because the pressure on the floor at theends of the broom is different, refer to the ServiceManual.Figure 5P1005941464815000 - SW4000 23