Specific Safety Rules And Symbols; General Safety Precautions; Basic Information Concerning Safety; Mechanical Hazards - Hilti UH 650 Mode D'emploi

When servicing a tool, use only identical replace-
ment parts. Follow instructions in the Maintenance
section of this manual. Use of unauthorized parts or
failure to follow Maintenance Instructions may create
a risk of electric shock or injury.

3. Specific safety rules and symbols

Hold tools by insulated gripping surfaces when per-
forming an operation where the cutting tool may
contact hidden wiring or its own cord. Contact with a
"live" wire will make exposed metal parts of the tool
"live" and shock the operator.
Wear ear protectors when using the tool for extended
periods. Prolonged exposure to high intensity noise can
cause hearing loss.
Personal protective equipment
The user and any other persons in the vicinity must wear
suitable eye protection, a safety helmet, ear protection
and protective gloves. They must also wear breathing
protection if no dust removal system is used.

3.1 Basic information concerning safety

CAUTION: To avoid the risk of electric shock, injury or
fire, the basic safety precautions listed below must always
be observed when using electric tools.
In addition to the information relevant to safety given in
each of the sections of these operating instructions, the
following points must be strictly observed at all times.
3.2 Safety precautions at the workplace
Ensure that the workplace is well ventilated.
●
Keep the workplace tidy. Objects which could cause
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injury should be removed from the working area.
Untidiness at the workplace can lead to accidents.
Secure the working area (cordon off if necessary).
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Wear breathing protection if the work creates dust.
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It is recommended that protective gloves and non-slip
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shoes are worn when working outdoors.
Do not allow other persons to tamper with the tool or
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the supply cord.
Avoid unfavorable body positions. Work from a secure
●
stance and stay in balance at all times.
Connect the dust removal system. If the tool is provided
●
with a means of removing and collecting dust, check
that this is connected correctly and used as intended.
To avoid tripping and falling when working, always
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lead the supply cord, extension cord and dust extrac-
tion hose away to the rear.
Concealed electric cables or gas and water pipes pre-
●
sent a serious hazard if damaged while you are work-
ing. Accordingly, check the area in which you are work-
ing beforehand (e.g. using a metal detector). External
Printed: 07.07.2013 | Doc-Nr: PUB / 5071287 / 000 / 00
metal parts of the tool may become live, for example,
when an electric cable is drilled into inadvertently.

3.3 General safety precautions

Do not use the tool for purposes for which it was not
●
intended. Use the tool only as directed and when it is
in faultless condition.
Avoid contact with rotating parts.
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Take the influences of the surrounding area into account.
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Do not expose the tool to rain or snow and do not use
it in damp or wet conditions.
Keep the grips clean, dry and free from oil and grease.
●
Do not use damaged insert tools.
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Use only insert tools designed for the application on
●
hand.
The side handle must be fitted at all times when the
●
tool is in use.
Check that the side handle is securely attached.
●
Always hold the tool securely with both hands on the
●
grips provided.
When not in use, the tool must be stored in a dry place,
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locked up or out of reach of children.
Switch the tool off before transporting it.
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Take care of your insert tools. Observe the instruc-
●
tions concerning lubrication and changing insert tools.
Check that moving parts function correctly without
●
sticking and that no parts are damaged. All parts must
be fitted correctly and fulfill all conditions necessary
for correct operation of the tool.

3.3.1 Mechanical hazards

Observe the instructions concerning care and main-
●
tenance.
Ensure that the insert tools used are equipped with
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the appropriate connection end system and that they
are properly fitted and secured in the chuck.
Wear protective gloves when handling sharp insert
●
tools in order to avoid cutting your hands or fingers.
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