Hilti VC 20-UM Manual Original página 32

1. Disconnect the supply cord plug from the
power outlet.
2. Open the two catches.
3. Lift the vacuum cleaner top section away
from the waste material container.
4. Carefully remove the paper dust bag col-
lar from the adapter and remove the filter
en
fleece.
5. Close the slider at the dust bag collar (place
the cover over the filter fleece).
6. Clean the waste material container with a
cloth.
7. Fit a new dust bag / filter fleece in the waste
material container.
8. Fit the vacuum cleaner top section onto
the waste material container.
9. Close the two catches.
7.4.2 Changing the plastic dust bag 4
CAUTION
The material collected must be disposed of
in accordance with the applicable regula-
tions.
1. Disconnect the supply cord plug from the
power outlet.
2. Open the two catches.
3. Lift the vacuum cleaner top section away
from the waste material container.
4. Use a cable tie to close the plastic dust
bag below the punched holes.
5. Remove the plastic dust bag.
6. Clean the waste material container with a
cloth.
7. Fit a new plastic dust bag (see instruc-
tions printed on it) in the waste material
container.
8. Fit the vacuum cleaner top section onto
the waste material container.
9. Close the two catches.
7.5 Picking up liquids
CAUTION
Never use the appliance without a filter ele-
ment.
7.5.1 Before picking up liquids
1. Remove the dust bag from the waste ma-
terial container.
2. Check to ensure that the electrodes of the
level monitoring system are clean. Clean
them with a brush if necessary.
32
7.5.2 When picking up liquids
If possible, use a separate filter element for wet
applications.
NOTE
If possible, use a Hilti PES filter element.
If foaming occurs, switch the appliance off
immediately and empty the container.
The appliance switches itself off automatically
when the liquid in the container reaches the
maximum level.
7.5.3 After picking up liquids 5
1. Open the two catches.
2. Lift the vacuum cleaner top section away
from the waste material container.
3. Empty the container and clean it out by
hosing it down with water, clean the elec-
trodes with a brush and clean the filter
element by wiping it with the hand after
first allowing it to dry.
4. Leave the vacuum cleaner top section and
the container standing separately so that
the container can dry.
7.6 Audible signal (VC 20‑UM/ VC 40‑UM)
For safety reasons, an audible warning signal
is emitted when the air speed in the hose
drops below 20 m/s. Please refer to the
"Troubleshooting" section for possible causes
of this problem.
7.7 After finishing work
1. Switch off the electric tool.
2. Turn the control switch to the "OFF" posi-
tion.
3. Disconnect the supply cord plug from the
power outlet.
4. Coil up the supply cord and hang it on the
hook.
5. Empty the container and clean the appli-
ance by wiping it with a damp cloth.
6. Coil up the suction hose.
7. Store the appliance in a secure, dry place
where it is inaccessible to unauthorized
users.
7.8 Emptying the waste material container
CAUTION
To avoid injury, remove the power condi-
tioner and any loose accessories from their