Nilfisk-ALTO 91WS - Manual (Page 25)

1-24 American-Lincoln
91 WS
2
3
1 4
CO622fr
TO REPLACE THE MAIN BROOM
The main broom should be replaced when the bristles become worn to less than 2". The main broom is held in
place by a single threaded knob. This feature provides for easy removal and installation of the main broom
without the need for special tools or equipment. Follow the instructions below for main broom removal and
replacement.
1. Park the sweeper on a smooth level surface. Turn the key switch “OFF”. Place the main broom lever in the
“SWEEP” position.
2. Gain access to the main broom by opening the broom compartment door located on the left side of the
machine.
3. Remove the main broom idler hub [Item 2] by loosening the threaded knob [Item 1] .
4. Grasp the main broom [Item 3] and remove it from the drive hub [Item 2].
5. Insert replacement broom [Item 3] into the broom compartment. Pay special attention to the slots on the
broom. It may be necessary to rotate the broom so the tabs on the drive hub align with the slots on the
broom.
6. Reinstall the idler hub [Item 2] to the broom and over the locator stud [Item 4] and screw provided for the
threaded knob [Item 1].
7. Install the threaded knob and close the broom door and engage the door latch.
8. Re-Check main broom sweep pattern.
SERVICE INSTRUCTIONS
MAIN BROOM SERVICE INSTRUCTIONS-CONT.
C0622 FIGURE 15