Hilti TE 300-AVR Mode D'emploi Original page 12

▶ Keep bystanders, children and visitors away while operating a power
tool.
▶ 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.
▶ Use a dust removal system and suitable vacuum cleaner whenever
possible. Dust from materials, such as paint containing lead, some wood
species, concrete/masonry/stone containing silica, and minerals as well
as metal, may be harmful.
▶ Make sure that the workplace is well ventilated and, where necessary,
wear a respirator appropriate for the type of dust generated. Contact with
or inhalation of the dust may cause allergic reactions and/or respiratory
or other diseases to the operator or bystanders. Certain kinds of dust
are classified as carcinogenic such as oak and beech dust, especially
in conjunction with additives for wood conditioning (chromate, wood
preservative). Material containing asbestos may be handled only by
specialists.
▶ Observe the national health and safety requirements.
Electrical safety
▶ Before beginning work, check the working area for concealed electric
cables or gas and water pipes. External metal parts of the power tool may
give you an electric shock if you damage an electric cable accidentally.
▶ Check the power tool's supply cord at regular intervals and have it re-
placed by a qualified specialist if found to be damaged. If the power tool's
supply cord is damaged it must be replaced with a specially-prepared
and approved supply cord available from Hilti Customer Service. Check
extension cords at regular intervals and replace them if found to be dam-
aged. Do not touch the supply cord or extension cord if it is damaged
while working. Disconnect the supply cord plug from the power outlet.
Damaged supply cords or extension cords present a risk of electric
shock.
Careful handling and use of electric tools
▶ Secure the workpiece. A workpiece clamped in a vice or secured by
some other clamping device is more secure than when held only by
hand.
▶ Ensure that the accessory tools used have a mounting system that is
compatible with the power tool and that they are secured in the chuck
correctly.
▶ Switch the electric tool off and unplug the supply cord in the event of an
interruption in the electric supply in order to avoid inadvertent restarting
when the power returns.
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