Before Use - Hilti AG 125-A22 Mode D'emploi

b) Dirty or dusty power tools that have been used fre-
quently for work on conductive materials should
be checked at regular intervals at a Hilti Service
Center. Under unfavorable circumstances, damp-
ness or dust adhering to the surface of the tool,
especially dust from conductive materials, may lead
to damage to the tool.
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5.3.4 Battery use and care
a) Observe the special instructions applicable to the
transport, storage and use of Li-ion batteries.
b) Do not expose batteries to high temperatures or
fire. This presents a risk of explosion.
c) Do not disassemble, squash or incinerate batter-
ies and do not subject them to temperatures over
80°C. A risk of fire, explosion or injury through con-
tact with caustic substances may otherwise result.
d) Do not use batteries other than those approved
for use with the applicable power tool or appli-
ance. Use of other batteries or use of the battery for
purposes for which it is not intended presents a risk
of fire and explosion.
e) Do not charge or continue to use damaged bat-
teries (e.g. batteries with cracks, broken parts,
bent or pushed-in and/or pulled-out contacts).

6 Before use

WARNING
Never use the power tool without the guard.
6.1 Battery use and care
NOTE
Battery performance drops at low temperatures. Use the
tool only after fully charging the battery. This ensures
that maximum battery capacity is available. Change to
a second battery as soon as a drop in performance is
noticed. Recharge the battery immediately so that it is
ready for reuse.
Store the battery in a cool, dry place. Never store the
battery where it is exposed to direct sunlight or sources
of heat, e.g. on heaters / radiators or behind a motor
vehicle windscreen. Batteries that have reached the end
of their life must be disposed of safely and correctly to
avoid environmental pollution.
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f) If the battery gets too hot to touch, this may indicate
that it is faulty. Place the tool in a location where
it can be kept under observation, well away from
flammable materials, and allow it to cool down.
Contact Hilti Service after the battery has been
allowed to cool.
5.3.5 Work area safety
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.
5.3.6 Personal protective equipment
The user and any other persons in the vicinity must
wear suitable eye protection, a hard hat, ear protec-
tion, protective gloves and breathing protection while
the power tool is in use.
6.2 Charging the battery
DANGER
Only used the specified Hilti battery packs and Hilti
battery chargers which are listed under "Accessor-
ies".
6.2.1 Charging a new battery for the first time
Charge the battery fully before using it for the first time.
6.2.2 Charging a previously used battery
Ensure that the outer surfaces of the battery are clean
and dry before inserting it in the corresponding charger.
Read the operating instructions for the charger for further
information about the charging procedure.
Lithium-ion battery packs are ready to use at any time,
even when only partially charged. Charging progress