Hilti SF 4-A22 Manual page 12

liquid contacts eyes, additionally seek medical help. Liquid ejected
from the battery may cause irritation or burns.
▶ Do not use a battery pack or tool that is damaged or modified.
Damaged or modified batteries may exhibit unpredictable behaviour
resulting in fire, explosion or risk of injury.
▶ Do not expose a battery pack or tool to fire or excessive temperature.
Exposure to fire or temperature above 130° C (265 °F) may cause
explosion.
▶ Follow all charging instructions and do not charge the battery pack
or tool outside the temperature range specified in the instructions.
Charging improperly or at temperatures outside the specified range may
damage the battery and increase the risk of fire.
Service
▶ Have your power tool serviced by a qualified repair person using
only identical replacement parts. This will ensure that the safety of the
power tool is maintained.
▶ Never service damaged battery packs. Service of battery packs should
only be performed by the manufacturer or authorized service providers.
2.2 Drill safety warnings
Safety instructions for all operations
▶ Hold the power tool by insulated gripping surfaces, when performing
an operation where the cutting accessory or fasteners may contact
hidden wiring. Cutting accessory or fasteners contacting a "live" wire
may make exposed metal parts of the power tool "live" and could give
the operator an electric shock.
Safety instructions when using long drill bits
▶ Never operate at higher speed than the maximum speed rating of
the drill bit. At higher speeds, the bit is likely to bend if allowed to rotate
freely without contacting the workpiece, resulting in personal injury.
▶ Always start drilling at low speed and with the bit tip in contact with
the workpiece. At higher speeds, the bit is likely to bend if allowed
to rotate freely without contacting the workpiece, resulting in personal
injury.
▶ Apply pressure only in direct line with the bit and do not apply
excessive pressure. Bits can bend causing breakage or loss of control,
resulting in personal injury.
2.3 Additional safety instructions
▶ Use the product and accessories only when they are in perfect working
order.
▶ Never tamper with or modify the product or accessories in any way.
▶ Before beginning work, check the working area for concealed electric
cables or gas and water pipes. External metal parts of the product could
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