the line of cut and near the edge of the workpiece on
both sides of the wheel.
f)
Use extra caution when making a "pocket cut"
into existing walls or other blind areas.
The pro-
truding wheel may cut gas or water pipes, electrical
wiring or objects that can cause kickback.
5.6 Additional safety instructions
5.6.1 Personal safety
a)
Wear ear protectors.
Exposure to noise can cause
hearing loss.
b)
Always hold the power tool securely with both
hands on the grips provided. Keep the grips dry,
clean and free from oil and grease.
c)
Breathing protection must be worn if the power
tool is used without a dust removal system for
work that creates dust.
d)
Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
e)
Avoid touching rotating parts. Switch the power
tool on only after bringing it into position at the
workpiece.
Touching rotating parts, especially rotat-
ing insert tools, may lead to injury.
f)
Always lead the supply cord and extension cord
away from the power tool to the rear while work-
ing.
This helps to avoid tripping over the cord while
working.
g)
Children must be instructed not to play with the
power tool.
h)
The power tool is not intended for use by children,
by debilitated persons or those who have received
no instruction or training.
i)
Before beginning the work, check the hazard clas-
sification of the dust that will be produced. Use
an industrial vacuum cleaner with an officially
approved protection classification in compliance
with locally applicable dust protection regula-
tions.
j) 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 special-
ists.
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. Fol-
low national requirements for the materials you
want to work with.
5.6.2 Power tool use and care
a)
Grinding discs must be stored and handled care-
fully in accordance with the manufacturer’s in-
structions.
b)
Check that the grinding disc is fitted in accord-
ance with the manufacturer’s instructions.
c)
If use of a spacer ring or other intermediate part is
specified and the part is supplied with the grinding
disc, check to ensure that the part is fitted.
d)
Before use, check that the cutting disc has been
fitted correctly and the clamping nut tightened.
Then allow the power tool to run for 60 seconds
under no load while holding it securely. Switch off
the power tool immediately if significant vibration
or any other faults are noticed. Should this occur,
examine the power tool in order to determine the
cause.
e)
Never use the power tool without the guard.
f)
The workpiece must be fixed securely in place.
g)
Do not use cutting discs for grinding.
h)
After disc breakage, or if the power tool is
dropped, falls or suffers other mechanical
damage, it must be checked at a Hilti Service
Center.
i)
Take steps to ensure that flying sparks from the
power tool do not present a hazard, i.e. by striking
yourself, other persons or inflammable materials.
Adjust the position of the guard accordingly.
j)
In case of an interruption in the electric supply:
Switch the power tool off and unplug the supply
cord.
This will prevent accidental restarting when the
electric power returns.
5.6.3 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 spe-
cialist if found to be damaged. If the machine’s
supply cord is damaged it must be replaced with
a specially-prepared and approved supply cord
available from Hilti Customer Service. Check ex-
tension cords at regular intervals and replace
them if found to be damaged. Do not touch the
supply cord or extension cord if it is damaged
while working. Disconnect the mains plug from
the power outlet.
Damaged supply cords or exten-
sion cords present a risk of electric shock.
en
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Printed: 02.04.2014 | Doc-Nr: PUB / 5169257 / 000 / 01
