Hilti VC 20-UM Manual Original página 34

3. Close the filter cover by pivoting the cover
catch forward.
4. Close the filter cover catches.
8.3 Opening the appliance for checking
1. Engage the castor brakes.
2. Disconnect the supply cord plug from the
en
power outlet.
3. Open the two catches.
4. Lift the vacuum cleaner top section away
from the waste material container and
place it on a level surface.
8.4 Checking the waste material level
Check the cut-out contacts and clean them
with a brush if necessary (if dirty).
8.5 Closing the appliance
CAUTION
When fitting the top section of the vacuum
cleaner, take care to avoid pinching your
fingers or damaging the supply cord.
1. Check the seal at the vacuum cleaner top
section and also clean this with a cloth.
2. Fit the vacuum cleaner top section onto
the waste material container.
3. Close the two catches.
8.6 Care of the appliance
CAUTION
Disconnect the supply cord plug from the
power outlet.
Never operate the appliance when the ventil-
ation slots are blocked. Clean the ventilation
slots carefully using a dry brush. Clean the out-
side of the appliance at regular intervals with a
cloth. Do not use a spray, high-pressure water-
jet system, steam pressure cleaning equipment
or running water for cleaning. This may negat-
ively affect the electrical safety of the appliance.
Always keep the grip surfaces of the appliance
free from oil and grease. Do not use cleaning
agents which contain silicone.
34
For vacuum cleaners of the class M, please
note: The appliance must be handled for clean-
ing and maintenance in a way that avoids ex-
posing maintenance personnel and other per-
sons to any hazards. Use filtered forced vent-
ilation. Wear personal protective equipment.
Clean the maintenance area in a way that pre-
vents hazardous substances escaping into the
surrounding environment.
Vacuum off the outer surfaces of the appliance,
wipe it clean or seal it in suitable container
or material before removing it from an area
contaminated with hazardous substances. This
will help to avoid distribution of the hazardous
dust deposited on it.
When maintenance or repairs are carried out, all
contaminated parts which cannot be satisfact-
orily cleaned must be packed in impermeable
bags and disposed of in compliance with the
applicable disposal regulations.
A vacuum cleaner of the class M must be sub-
jected to a technical inspection by Hilti Service
or a trained person at least once a year to
check, for example, for damage to the filter,
air leakage, and to ensure correct operation of
controlling devices.
8.7 Maintenance
WARNING
Repairs to the electrical section of the ap-
pliance may be carried out only by trained
electrical specialists.
Check all external parts of the appliance for
damage at regular intervals and check that all
controls operate faultlessly. Do not operate the
appliance if parts are damaged or when the
controls do not function faultlessly. If neces-
sary, the appliance should be repaired by Hilti
Service.
8.8 Checking the appliance after care and
maintenance
After carrying out cleaning and maintenance,
check that the vacuum cleaner has been cor-
rectly reassembled and that it operates fault-
lessly.
Test each of the functions.