Hilti VC 20-UM Manual Original página 33

attachment points before emptying the con-
tainer and before transporting the vacuum
cleaner.
7.8.1 Emptying dry dust from the waste
material container
7.8.1.1 Before emptying the waste
material container, proceed as
follows:
1. Disconnect the supply cord plug from the
power outlet.
2. Lift the vacuum cleaner top section away
from the waste material container and
place it on a level surface.
7.8.1.2 After emptying the waste material
container, proceed as follows:
CAUTION
When fitting the top section of the vacuum
cleaner, take care to avoid pinching your
fingers or damaging the supply cord.
8 Care and maintenance
CAUTION
For vacuum cleaners of the class M, please
note: CAUTION: This appliance contains
harmful dust. The vacuum cleaner may be
emptied (including disposal of the dust
container) or serviced only by trained
persons wearing the appropriate protective
equipment. Do not operate the appliance if
the filter system is incomplete.
8.1 Automatic filter element cleaning
NOTE
Do not attempt to clean the filter element by
knocking it against a hard object and do not
use pointed instruments. This will reduce the
life of the filter element.
NOTE
Do not use compressed air to clean the fil-
ter element. This may cause tears in the filter
material.
NOTE
The condition of the filter will deteriorate with
use. It should be replaced at least every 6
months and more frequently if the appliance is
subject to heavy use.
Fit the vacuum cleaner top section onto the
waste material container and close the two
catches.
7.8.2 Emptying the waste material
container when no dust bag is fitted
(collecting liquids)
NOTE
The material collected must be disposed of in
accordance with the applicable regulations.
1. Hold the container by the grip areas
provided and tip it over to empty out its
contents.
2. Clean the edge of the waste material con-
tainer with a damp cloth.
The appliance is equipped with a filter clean-
ing system which removes most of the dust
adhering to the filter element.
The filter element is cleaned automatically by a
blast of air (a pulsating noise is heard).
NOTE
The filter element cleaning system functions
only when a suction hose is connected.
8.2 Changing the filter element
CAUTION
Never use the appliance without a filter ele-
ment.
8.2.1 Removing the filter element 6
1. Disconnect the supply cord plug from the
power outlet.
2. Open the filter cover catches.
3. Open the filter cover.
4. Carefully remove the filter element, grip-
ping it at the areas provided in the holder.
8.2.2 Fitting the filter element 7
1. Clean the sealing surface with a cloth.
2. Fit the new filter element.
en
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