operations different from those intended could
result in a hazardous situation.
5.1.5 Service
a) Have your power tool serviced by a qualified
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
5.2 Additional safety precautions
5.2.1 Personal safety
a) Wear ear protectors. Exposure to noise can cause
hearing loss.
b) Use auxiliary handle(s), if supplied with the
tool. Loss of control can cause personal injury.
c) Hold power tool by insulated gripping surfaces,
when performing an operation where the cutting
accessory may contact hidden wiring or its own
cord. Cutting accessory contacting a "live" wire
may make exposed metal parts of the power tool
"live" and could give the operator an electric shock.
d) Always hold the power tool securely with both
hands on the grips provided. Keep the grips dry,
clean and free from oil and grease.
e) Hold power tool by insulated gripping sur-
faces when performing an operation where the
fastener may contact hidden wiring or its own
cord. Fasteners contacting a “live” wire may
make exposed metal parts of the power tool “live”
and could give the operator an electric shock.
f) Breathing protection must be worn if the power
tool is used without a dust removal system for
work that creates dust.
g) Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
h) Avoid touching rotating parts. Switch the power
tool on only after bringing it into position at the
workpiece. Touching rotating parts, especially
rotating insert tools, may lead to injury.
i) Always lead the supply cord and extension cord
away from the power tool to the rear while
working. This helps to avoid tripping over the
cord while working.
j) Children must be instructed not to play with the
appliance.
k) The appliance is not intended for use by chil-
dren, by debilitated persons or those who have
received no instruction or training.
l) Dust from material such as paint containing lead,
some wood species, minerals and metal may be
harmful. Contact with or inhalation of the dust
may cause allergic reactions and/or respiratory
diseases to the operator or bystanders. Certain
kinds of dust are classified as carcinogenic such
as oak and beech dust especially in conjunction
with additives for wood conditioning (chromate,
wood preservative). Material containing asbestos
must only be treated by specialists. Where the
use of a dust extraction device is possible it
shall be used. To achieve a high level of dust
collection, use a suitable vacuum cleaner of the
type recommended by Hilti for wood dust and/or
mineral dust together with this tool. Ensure that
the workplace is well ventilated. The use of a
dust mask of filter class P2 is recommended.
Follow national requirements for the materials
you want to work with.
5.2.2 Power tool use and care
a) Secure the workpiece. Use clamps or a vice
to secure the workpiece. The workpiece is thus
held more securely than by hand and both hands
remain free to operate the power tool.
b) Check that the insert tools used are compatible
with the chuck system and that they are secured
in the chuck correctly.
c) Switch the 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.
5.2.3 Electrical safety
a) Before beginning 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
presents a serious risk of electric shock.
b) Check the power tool’s supply cord at regular
intervals and have it replaced by a qualified
specialist if found to be damaged. If the power
en
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