Hilti TE 7 Manual De Instrucciones página 10

▶ Hold the power tool by insulated gripping surfaces, when performing an operation where the
cutting accessory may contact hidden wiring or its own cord. Cutting accessory 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 with rotary hammers
▶ 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
Personal safety
▶ Modification of the power tool is not permitted.
▶ Keep the grips dry, clean and free from oil and grease.
▶ Check that the side handle is fitted correctly and tightened securely. Always hold the tool securely
with both hands on the grips provided.
▶ Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers
during breaks between working.
▶ The power tool is not intended for use by debilitated persons who have received no special training.
▶ Keep the power tool out of reach of children.
▶ Avoid touching rotating parts. Switch the power tool on only after bringing it into position at the
workpiece. Touching rotating parts, especially rotating drill bits or other accessories, may lead to injury.
▶ 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. 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. 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.
▶ 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.
▶ Observe the national health and safety requirements.
Careful handling and use of power tools
▶ Secure the workpiece. Use clamps or a vice to secure the workpiece. The workpiece is thus held
more securely than by hand and both hands remain free to operate the power tool.
▶ Ensure that the accessory tools used have a mounting system that is compatible with the electric
tool and that they are secured in the chuck correctly.
▶ In the event of a power failure or interruption in the electric supply, switch the power tool off,
unplug the supply cord and release the switch lockbutton (if applicable). This will prevent accidental
restarting when the electric power returns.
Electrical safety
▶ 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 tool may
become live, for example, when an electric power line is damaged accidentally. This presents a serious
risk of electric shock.
▶ Check the tool's supply cord at regular intervals and have it replaced by a qualified specialist if
found to be damaged. If the 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 damaged. 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.
▶ Dirty or dusty power tools that have been used frequently for work on conductive materials should
be checked at regular intervals at a Hilti Service Center. Dust (especially dust from conductive
materials) or dampness adhering to the surface of the power tool may, under unfavorable conditions,
lead to electric shock.
4 English 428557
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