Nilfisk-ALTO R 580 B - Manual (Page 14)

ENGLISH USER MANUAL
12 FLOORTEC R 580 B 146 2601 000(1)2005-03 A
MAIN BROOM HEIGHT CHECK AND
ADJUSTMENT
1. Check the main broom for proper ground clearance,
proceeding as follows:
–
Drive the machine on a level ground;
– Keep the machine stationary and rotate the main
broom for a few seconds;
– Stop and lift the main broom, then move the
machine;
– Check that the main broom print (1, Fig. D), along
its length, is from 2 to 4 cm wide.
If the print (1) is not within specifications, it is
necessary to adjust the broom height, proceeding
as described in the following steps.
2. To stop the machine, turn the ignition switch (18, Fig.
B) to “0” position.
3. Remove the screw with a screwdriver, then release
the fastener (6, Fig. C).
4. Open the left door (5, Fig. C).
5. Loose the locknut (2, Fig. E).
6. Turn the handwheel (1, Fig E) and remind that:
–
to decrease the pressure of the broom on the
ground, it must be screwed.
– to increase the pressure of the broom on the
ground, it must be unscrewed.
7. Screw the locknut (2, Fig. E).
8. Perform step 1 again to check the proper adjustment
of the main broom height from the ground.
9. When the broom is too worn to be adjusted, replace it
as shown in the next paragraph.
10. Engage the retainer (6, Fig. C) and close the left door
(5).
MAIN BROOM REPLACEMENT
1. Drive the machine on a level ground and activate the
parking brake using the pedal and the lever (26 and
19, Fig. B).
2. Turn the ignition switch (18, Fig. B) to “0” position.
3. Open the hood (1, Fig. V) and disconnect the battery
connector (4, Fig. V).
4. Disengage the retainer (8, Fig. C) and open the right
door (7).
5. Unscrew and remove the knobs (1, Fig. F).
6. Remove the broom compartment cover (1, Fig. G).
7. Remove the broom (1, Fig. H).
8. Check that the drive hub (1, Fig. I) is free from dirt or
foreign materials (ropes, rags, etc.) accidentally
rolled up.
9. The new broom must be installed with the bristles
rows positioned as shown in the figure (2, Fig. I).
10. Install the new broom (3, Fig. I) on the machine and
ensure that its mesh (4) correctly fits on the related
drive hub (1).
11. Reinstall the broom compartment cover (1, Fig. G)
and screw the knobs (1, Fig. F).
12. Engage the retainer (8, Fig. C) and close the right
door (7).
13. Carry out the main broom height check and
adjustment, as described in the previous paragraph.
NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.
WARNING!
Before opening the left door (5, Fig. C)
switch the machine off to prevent the belts
and pulleys rotation.
NOTE
When the handwheel is completely
unscrewed, you have reached the maximum
pressure of the broom on the ground.
NOTE
If it is not possible to adjust the print (1, Fig. D)
correctly, because the ground pressure at the
ends of the broom is different, refer to the
Service Manual for the related adjustment
procedure.
NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.
WARNING!
It is advisable to use protective gloves
when replacing the main broom because
there can be cutting debris between the
bristles.