Nilfisk-Advance America IVB 5-M, IVB 7-M Acoustic warning, 4.5Cleaning the filter element IVB 3-M

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”.

IVB 3-M IVB 5-M IVB 7-M

english

4.5Cleaning the filter element (IVB 3-M)

If the acoustic signal sounds again after repeated cleaning, replace the filter element (see section 7.2.5).

1 auto	0	2	x3
	I

Push & Clean

Filter Cleaning System

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.

4.6Cleaning the filter element (IVB 5-M/7-M)

To ensure that suction perform- ance is always at its best, the filter element is automatically cleaned during operation. We recommend complete cleaning if the filter ele- ment becomes extremely dirty.

After picking up harmless dust us- ing the waste bag.

1.Switch off the vacuum clean- er

2.Close the nozzles or suction hose opening with the palm of your hand.

3.Turn the switch to position „I“ and let the cleaner operate for approx. 10 seconds with the suction hose opening closed.

1) Option depending on model 07