General safety rules – Hilti WSR900-PE User Manual

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2. General safety rules


Read and understand all instructions.
Failure to follow all instructions listed below may result
in electric shock, fire and/or serious personal injury.


2. Work Area

Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
Do not operate power tools in explosive atmos-
pheres, such as in the presence of flammable
liquids, gases, or dust.
Power tools create sparks
which may ignite the dust or fumes.
Keep bystanders, children and visitors away while
operating a power tool.
Distractions can cause you
to lose control.

3. Electrical Safety

Double Insulated tools are equipped with a polarized
plug (one blade is wider than the other.) This plug
will fit in a polarized outlet only one way. If the plug
does not fit fully in the outlet, reverse the plug. If it
still does not fit, contact a qualified electrician to
install a polarized outlet. Do not change the plug in
any way.
Double Insulation Z eliminates the need for
the three wire grounded power cord and grounded power
supply system.

Applicable only to Class II tools.

Avoid body contact with grounded surfaces such
as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your
body is grounded.
Don’t expose power tools to rain or wet condi-
Water entering a power tool will increase the
risk of electric shock.
Do not abuse the cord. Never use the cord to carry
the tools or pull the plug from an outlet. Keep cord
away from heat, oil, sharp edges or moving
parts. Replace damaged cords immediately.
Damaged cords increase the risk of electric shock.
When operating a power tool outside, use an out-
door extension cord marked «W-A» or «W».
cords are rated for outdoor use and reduce the risk
of electric shock.

4. Personal Safety

Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a tool while tired or under the influence of
drugs, alcohol, or medication.
A moment of inat-
tention while operating power tools may result in
serious personal injury.

Dress properly. Do not wear loose clothing or
jewelry. Contain long hair. Keep your hair, cloth-

ing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in mov-
ing parts.

Avoid accidental starting. Be sure switch is off
before plugging in.
Carrying tools with your finger
on the switch or plugging in tools that have the
switch on invites accidents.

Remove adjusting keys or wrenches before
turning the tool on.
A wrench or a key that is left
attached to a rotating part of the tool may result in
personal injury.

Do not overreach. Keep proper footing and bal-
ance at all times.
Proper footing and balance
enables better control of the tool in unexpected situ-

Use safety equipment. Always wear eye protec-
Dust mask, non-skid safety shoes, hard hat or
hearing protection must be used for appropriate

5. Tool Use and Care

Use clamps or other practical way to secure and
support the workpiece to a stable platform.
ing the work by hand or against your body is unsta-
ble and may lead to loss of control.

Do not force tool. Use the correct tool for your
The correct tool will do the job better
and safer at the rate for which it is designed.

Do not use tool if the switch does not turn it on or
Any tool that cannot be controlled with the
switch is dangerous and must be repaired.

Disconnect the plug from the power source before
making any adjustments, changing accessories,
or storing the tool.
Such preventive safety measur-
es reduce the risk of starting the tool accidentally.

Store idle tools out of reach of children and other
untrained persons.
Tools are dangerous in the
hands of untrained users.

Maintain tools with care. Keep cutting tools sharp
and clean.
Properly maintained tools with sharp
cutting edges are less likely to bind and are easier to

Check for misalignment or binding of moving
parts, breakage of parts and any other condition
that may affect the tools operation. If damaged,
have the tool serviced before using.
Many acci-
dents are caused by poorly maintained tools.

Use only accessories that are recommended by
the manufacturer for your model.
Accessories that

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