workpiece. Touching rotating parts, especially
rotatinginsert tools, may lead to injury.
e) Alwayslead the supply cord and extension cord
away from the power tool to the rear while
working. This helps to avoid tripping over the
cordwhile working.
f) Childrenmust be instructed not to play with the
powertool.
g) The power tool is not intended for use by chil-
dren,by debilitated persons or those who have
receivedno instruction or training.
h) WARNING: Some dust created by grinding,
sanding, cutting and drilling contains chem-
icals known to cause cancer, birth defects,
infertility or other reproductive harm; or seri-
ous and permanent respiratory or other injury.
Someexamples of these chemicals are: lead from
lead-based paints, crystalline silica from bricks,
concreteand other masonry products and natural
stone, arsenic and chromium from chemically-
treated lumber. Your risk from these exposures
varies, depending on how often you do this type
ofwork. To reduce exposure to these chemicals,
the operator and bystanders should work in a
well-ventilatedarea, work with approved safety
equipment, such as respiratory protection ap-
propriate for the type of dust generated, and
designedto filter out microscopic particles and
directdust away from the face and body. Avoid
prolonged contact with dust. Wear protective
clothingand wash exposed areas with soap and
water. Allowing dust to get into your mouth,
eyes, or to remain on your skin may promote
absorptionof harmful chemicals.
5.3.2Power tool use and care
a) Secure the workpiece. Use clamps or a vice
to secure the workpiece. The workpiece is thus
heldmore securely than by hand and both hands
remainfree to operate the power tool.
b) Checkthat the insert tools used are compatible
withthe chuck system and that they are secured
inthe chuck correctly.
c) Switchthe power tool off and unplug the supply
cord in the event of a power failure or inter-
ruption in the electric supply. This will prevent
accidental restarting when the electric power re-
turns.
5.3.3Electrical safety
a) Beforebeginning work, check the working area
(e.g. using a metal detector) to ensure that
no concealed electric cables or gas and water
pipes are present. External metal parts of the
power tool may become live, for example, when
an electric cable is damaged accidentally. This
presentsa serious risk of electric shock.
b) Check the power tool’s supply cord at regular
intervals and have it replaced by a qualified
specialistif found to be damaged. If the power
tool’s supply cord is damaged it must be re-
placed with a specially-prepared supply cord
available from Hilti Customer Service. Check
extensioncords at regular intervals and replace
themif found to be damaged. Do not touch the
supply cord or extension cord if it is damaged
whileworking. Disconnect the supply cord plug
fromthe power outlet. Damaged supply cords or
extensioncords present a risk of electric shock.
c) Dirty or dusty power tools which have been
used frequently for work on conductive mater-
ials should be checked at regular intervals at
a Hilti Service Center. Under unfavorable cir-
cumstances, dampness or dust adhering to the
surface of the power tool, especially dust from
conductivematerials, may present arisk of elec-
tricshock.
d) When working outdoors with an electric tool
checkto ensure that the tool is connected to the
electric supply by way of a ground fault circuit
interrupter (GFCI) with a rating of max. 30 mA
(tripping current). Use of a ground fault circuit
interrupterreduces the risk of electric shock.
e) Use of a ground fault circuit interrupter (GFCI)
with a maximum tripping current of 30 mA is
recommended.
5.3.4Work area safety
a) Ensurethat the workplace is well lit.
b) Ensure that the workplace is well ventilated.
Exposureto dust at a poorly ventilated workplace
mayresult in damage to the health.
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