Nilfisk-ALTO S12 - Manual (Page 12)

Page -12- CLARKE TECHNOLOGY Symphony Upright Vacuum Operator's Manual
Steel Core Brush
WARNING: Turn off the switch and disconnect
unit from electrical supply before replacing
brush strips.
1. New brush strips inserts are supplied in sets. To
replace, first disconnect the machine from the
electrical outlet.
2. Remove the brush roll, see the section "How to
Replace the Belt."
3. Take the rubber end cab cover (figure 6, item A) from
the end of the brush roll and unscrew the locknut
(figure 9, item B).
4. Remove end cap (figure 9, item C) and bearing
retainer (figure 9, item D).
5. Push the exposed end of the shaft (figure 9, item E)
through the opposite end of the brush roll.
6. Pull out the worn brush strip (figure 9, item F) with
pliers and slide in a new one of the same length,
inserting the rounded end first.
7. Fit the track on either side of the brush strip securely
into the brush roll slot.
8. Replace the second brush strip from the opposite end
of the brush roll.
9. Return shaft (figure 9, item E) and align the
indentation of the bearing retainer (figure 10, item D)
with the brush strip on both ends. Seat firmly.
10. Position the end cap (figure 9, item C) with the flat
side of the center hole over the flat side of the
threaded shaft (figure 9, item E).
11. Tighten locknut (figure 9, item B).
12. Add the end cap cover (figure 9, item A) flat side down
and secured over the four end cap projections.
13. When properly assembled, the brush roll should rotate
freely between the two end caps.
14. Check the condition of the belt; change if necessary.
Replace the roll belt bottom plate, see the section
"How to Replace the Belt".
Lubrication
Do not oil the motor. The motor in this machine is
permanently lubricated and sealed. Do not oil the motor at
any time.
Electrical Maintenance
WARNING: Electric repairs and maintenance
must be done by authorized personnel only.
Return the machine to a Alto Authorized
repair location.
MAINTENANCE (CONT.)
Figure 9
Figure 10
A B C D
F
E
D