Hilti DC180-S Operating Instructions Manual Download Page 7

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fully for perfect functioning in keeping with the intend-
ed purpose before using the electric tool/machine fur-
ther. Check whether the moving parts function proper-
ly, whether they aren’t sticking, whether any parts are
broken, whether all other parts work properly and are
fitted correctly, and make sure that all other conditions
which can influence operation and running of the elec-
tric tool/machine are as they should be. Damaged guards
and protective devices and parts must be repaired prop-
erly by an authorized service workshop or replaced pro-
vided that nothing else is stated in the operating instruc-
tions. Damaged switches must also be replaced by a
Hilti service centre. Never use electric tools/machines
which cannot be switched on and off by the switch.

■

Caution! For your own safety’s sake, only use origi-

nal Hilti accessories and attachments which are speci-
fied in the operating instructions. The use of accessories
or insert tools or attachments other than those speci-
fied in the operating instructions can result in personal
injury to you.

■

Only have repairs carried out by recognized electri-

cal specialists. This electric tool/machine complies with
respective safety regulations. Repairs may only be car-
ried out by a Hilti service centre. Only original Hilti spare
parts may be used otherwise an accident hazard for the
operator can exist.

■

When working on electrically conductive mate-

rials, conductive dust may collect inside an electric tool,
causing leakage of electric voltage and a possible risk
of electric shock. Work of this kind, for example, includes
drilling through steel reinforcement in concrete ceilings.
Electric tools or machines used for applications of this
kind must be inspected at regular, short intervals by a
recognised specialist or at a Hilti service workshop in
order to ensure that no hazardous deposits of conduc-
tive dust are present inside the tool and to confirm the
integrity of the tool’s electrical insulation.

Special safety precautions

■

Check that the tool is switched off before plugging
the supply cord into the mains socket.

■

The side handle must always be fitted when the tool
is in use.

■

Always guide the supply cord away to the rear of the
tool.

■

Always wear goggles, ear protectors and a respira-
tory protection mask when carrying out grinding and
cutting work.

■

Wear protective gloves and sturdy footwear.

■

For safety reasons, the disc guard, hand guard and

auxiliary handle must always be fitted when the angle
grinder is in use.

■

The O-ring must always be in place on the clamping
flange.

■

The mounting bore of grinding and cutting discs must
fit on the centering collar of the clamping / mounting
flange without any play. Do not use reducers or adaptors.
Before switching on the tool, check that the grinding /
cutting disc is fitted correctly and that it can rotate freely.

■

Use only grinding and cutting discs that are approved
for use at the maximum permitted no-load speed of
the tool.

■

Observe the disc manufacturer's instructions when
fitting and using grinding / cutting discs.

■

New grinding/cutting discs should be tested by run-
ning the tool with the disc for at least 30 seconds.

■

Grinding/cutting discs that are damaged, run out of
true or vibrate must not be used.

■

Prevent movement of the workpiece by clamping it
securely in place.

■

Do not clamp the tool in a vice.

■

A dust extraction system equipped with a stone dust
filter, e.g. the Hilti TDA-VC 40/60 vacuum cleaner,
must be used when grinding or cutting stone.

■

The tool may be used for dry grinding / cutting only.

■

Grinding or cutting materials containing asbestos is
not permitted.

■

Caution: Take care to avoid concealed electric
cables, gas and water pipes. For example, a met-

al detector may be used to check the area where the
work is to be carried out.

■

Grinding or cutting metal causes sparks to fly. Ensure
that persons are not at risk as a result. Due to possi-
ble fire hazards, ensure that there are no flammable
materials in the immediate vicinity (within the area
where sparks fly). Do not use the tool in areas where
there is a risk of explosion.

■

Observe the direction of rotation of the disc. Always
hold the tool so that sparks and dust fly away from
the body.

■

Caution: The grinding or cutting disc continues to
rotate even after the tool has been switched off.

■

Do not attempt to brake the grinding / cutting disc by
applying lateral pressure after the tool has been
switched off.

■

Use of a ground fault interrupter switch (30 mA)

can increase operator safety and is recommended

in certain conditions, e.g. in extremely humid or damp
surroundings or where the tool is exposed to con-
ductive dust.

■

After a power cut: Switch off the tool and unplug the
supply cord.