n) Never operate the appliance when it is
dirty or wet. Dust (especially dust from
conductive materials) or dampness ad-
hering to the surface of the appliance
may, under unfavorable conditions, lead
to electric shock. Dirty or dusty appli-
ances should thus be checked at a Hilti
en
service center at regular intervals, espe-
cially if used frequently for working on
conductive materials.
o) Check to ensure that the supply cord
does not lie in a puddle of water.
p) Do not use the power outlet or accessor-
ies when the hands are wet.
5.2.7 Material picked up
a) Do not use the appliance to pick up flam-
mable or explosive dusts or dusts which
present a health hazard (magnesium or
aluminium dust, asbestos, etc.).
b) A vacuum cleaner of the dust class M is
suitable for picking up dry, non-flammable
dusts, wood chips or shavings, mineral
dusts containing quartz and hazardous sub-
stances with an exposure limit value of
6 Before use
6.1 Using the vacuum cleaner
CAUTION
The mains voltage must comply with the
specification given on the type identification
plate. Ensure that the appliance is discon-
nected from the electric supply.
DANGER
Connect the appliance only to properly
earthed/grounded power sources.
CAUTION
Always check to ensure that the vacuum
cleaner is standing securely. Engage the
castor brakes.
36
≧0.1mg/m³. The vacuum cleaner must be
equipped with a filter suitable for the
hazard classification of the dusts to be
picked up.
c) Do not use the appliance to pick up
flammable, explosive or aggressive li-
quids (coolants and lubricants, gasoline,
solvents, acids (pH<5), alkalis (pH>12.5)
etc.)
d) Switch the appliance off immediately if
foam or liquids escape from it.
e) Avoid contact with alkaline or acidic
liquids. If contact accidentally occurs,
flush with water. In the event of the
liquid coming into contact with the eyes,
rinse the eyes with plenty of water and
consult a doctor.
f) Wear protective gloves when using the
vacuum cleaner to pick up hot materials
with a max. temperature of 60°C.
g) Do not pick up objects or materials that
could cause injury by piercing through
the dust bag (e.g. pointed or sharp ob-
jects).
5.2.8 Thermal
Do not use the vacuum cleaner to pick up
hot materials with a temperature of over
60°C (glowing cigarettes, hot ash, etc.).
CAUTION
When fitting the top section of the vacuum
cleaner, take care to avoid pinching your
fingers or damaging the supply cord.