Hilti VC 40 Mode D'emploi page 31

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 element.
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, gripping 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.
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 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.
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8.6 Care of the appliance
CAUTION
Disconnect the supply cord plug from the power out-
let.
Never operate the appliance when the ventilation slots
are blocked. Clean the ventilation slots carefully using a
dry brush. Clean the outside 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 negatively 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.
For vacuum cleaners of the class M, please note: The
appliance must be handled for cleaning and maintenance
in a way that avoids exposing maintenance personnel
and other persons to any hazards. Use filtered forced
ventilation. Wear personal protective equipment. Clean
the maintenance area in a way that prevents 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 con-
taminated parts which cannot be satisfactorily 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 subjected 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 appliance 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 necessary, the appliance should be repaired by Hilti
Service.
8.8 Checking the appliance after care and
After carrying out cleaning and maintenance, check that
the vacuum cleaner has been correctly reassembled and
that it operates faultlessly.
Test each of the functions.
maintenance
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