reproductive harm; or serious and permanent res-
piratory or other injury.
Some examples of these
chemicals are: lead from lead-based paints, crys-
talline silica from bricks, concrete and 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 of work.
To reduce exposure to these
chemicals, the operator and bystanders should
work in a well-ventilated area, work with ap-
proved safety equipment, such as respiratory pro-
tection appropriate for the type of dust generated,
and designed to filter out microscopic particles
and direct dust away from the face and body.
Avoid prolonged contact with dust. Wear protec-
tive clothing and wash exposed areas with soap
and water.
Allowing dust to get into your mouth,
eyes, or to remain on your skin may promote absorp-
tion of harmful chemicals.
5.7.2 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 accor-
dance 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.
5.7.3 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.
c)
Dirty or dusty power tools which have been used
frequently for work on conductive materials
should be checked at regular intervals at a Hilti
Service Center.
Under unfavorable circumstances,
dampness or dust adhering to the surface of
the power tool, especially dust from conductive
materials, may present a risk of electric shock.
d)
When working outdoors with an electric tool
check to 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
interrupter reduces the risk of electric shock.
e)
Use of a ground fault circuit interrupter (GFCI)
with a maximum tripping current of 30 mA is
recommended.
5.7.4 Work area
a)
Ensure that the workplace is well lit.
b)
Ensure that the workplace is well ventilated.
Ex-
posure to dust at a poorly ventilated workplace may
result in damage to the health.
5.7.5 Personal protective equipment
The user and any other persons in the vicinity must
wear ANSI Z87.1-approved eye protection, a hard
hat, ear protection, protective gloves and breathing
protection while the machine is in use.
en
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Printed: 02.04.2014 | Doc-Nr: PUB / 5169271 / 000 / 01