Hilti SCW 22-A, Manual, Page: 27 / 456

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434723 English 21
additives for wood conditioning (chromate, wood preservative). Material containing asbestos may be
handled only by specialists. Use a dust removal system whenever possible. To achieve a high level
of dust collection, use a suitable vacuum cleaner. When indicated, wear a respirator appropriate
for the type of dust generated. Ensure that the workplace is well ventilated. Follow national
requirements for the materials you want to work with.
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Before beginning the work, check the hazard classification 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 regulations.
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Observe the national health and safety requirements.
Electrical safety
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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.
Careful handling and use of batteries
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Observe the special guidelines applicable to the transport, storage and use of lithium-ion batteries.
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Do not expose batteries to high temperatures and keep them away from fire. There is a risk of
explosion.
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Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over
80°C (176°F). This presents a risk of fire, explosion or injury through contact with caustic substances.
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Never continue to use or attempt to charge damaged batteries, e.g. batteries with cracks, broken
parts, bent or pushed-in / pulled-out contacts).
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Do not use the battery as a power source for other unspecified power tools or appliances.
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If the battery is too hot to touch it may be defective. In this case, place the power tool in a non-
flammable location, well away from flammable materials, where the battery can be kept under
observation and allowed to cool down. Contact Hilti Service after the battery has cooled down.
2.4 Additional safety instructions for circular saws
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Bring the saw blade into contact with the workpiece only when the circular saw is switched on.
➥ The path of the saw must be free of obstructions above and below the workpiece. Do not saw into
screws, nails or similar objects.
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Never work overhead with a circular saw.
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Never attempt to brake the saw blade by applying lateral pressure.
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Avoid overheating the tips of the saw blade teeth.
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Always use a saw blade that this suitable for the material you are going to saw.
2.5 Battery use and care
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Observe the special regulations and instructions applicable to the transport, storage and use of Li-ion
batteries.
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Do not expose batteries to high temperatures, direct sunlight or fire.
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Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over 80 °C.
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Do not use or charge batteries that have suffered mechanical impact, have been dropped from a height
or show signs of damage. In this case, always contact your Hilti Service .
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If the battery is too hot to touch it may be defective. In this case, place the product in a non-flammable
location, well away from flammable materials, where it can be kept under observation and allowed to
cool down. In this case, always contact your Hilti Service .