Nilfisk-Advance America IVB 7-H Manuel D’Utilisation

Page de 19
08
english
IVB 3-H
IVB 5-H
IVB 7-H
4.4 Acoustic 
warning
For safety reasons, an acoustic 
warning sounds if the air speed 
in the suction hose drops to be-
low 20 m/s. See section “Trou-
bleshooting”.
4.5 
Cleaning the filter 
element (IVB 3-H)
Only after picking up harmless dust 
using the waste bag.
If suction performance drops:
1. Set the suction power to 
maximum.
2.  Close the nozzles or suction 
hose opening with the palm 
of your hand.
3.  Press the button to start filter 
cleaning three times. The re-
sulting stream of air removes 
attached dust from the slats 
of the filter elements.
To ensure that suction performance 
is always at its best, the filter ele-
ment is automatically cleaned dur-
ing operation. We recommend com-
plete cleaning if the filter element 
becomes extremely dirty.
NOTE:
If the acoustic signal sounds again 
after repeated cleaning, replace the 
filter element (see section 7.2.4).
Only after picking up harmless dust 
using the waste bag.
1.  Switch off the vacuum clean-
er
2.  Close the nozzles or suction 
hose opening with the palm 
of your hand.
NOTE:
If the acoustic signal sounds again 
after repeated cleaning, replace the 
filter element (see section 7.2.3).
1
2
x3
Push & Clean
Filter Cleaning System
0
I
auto
4.6 
Cleaning the filter 
element (IVB 5-H/
IVB 7-H)
3.  Turn the switch to position „I“ 
and let the cleaner operate 
for approx. 10 seconds with 
the suction hose opening 
closed.