Metabo DBF 457 Manual Original página 11

Wear personal protective equipment and always
wear safety glasses. By wearing personal protec-
tive equipment such as gloves, protective clothing,
a dust mask, non-skid safety shoes, a safety helmet
or ear protectors, to suit the type of device and its
use, you reduce the risk of injury. Wearing this
equipment is recommended.
Check the sanding head before each use. Do not
use if cracked or broken, or if it has been dropped.
Avoid direct contact with the sanding head to
prevent crushing or cutting your hands or other
body parts. To protect your hands, wear suitable
gloves.
Never operate the machine when no abrasive
(grinding medium) is installed.
There is a risk of electrostatic discharge if the
machine is used on plastic and other non-conduc-
tive materials.
Explosive or flammable dust or vapours may be
generated while you work on workpieces. There is
therefore a risk of explosion or fire. Always use a
dust extraction or dust suppression system that is
suitable for the material being processed.
4.4 Risks associated with recurring move-
ments
When working with the air tool, you may experience
an uncomfortable sensation in your hands, arms,
shoulders, neck or other body parts.
Make sure you are in a comfortable position to carry
out work with the air tool, check that the tool is held
securely, and avoid any awkward positions that
make it difficult, for example, to keep your balance.
If carrying out work over an extended period, you/
the operator should change position occasionally.
This should help to avoid fatigue and any
unpleasant sensation.
If the operator experiences persistent symptoms
such as feeling unwell, aches, pains or throbbing, a
prickling or burning sensation, loss of hearing, or
joint stiffening, these warning signs must not be
ignored. The operator should advise the employer
of these symptoms and consult a qualified doctor.
4.5 Risks associated with accessory parts
Disconnect the air tool from the air supply before the
mounted tool or accessory part is secured or
replaced.
Only use accessories that are designed for this
device and that fulfil the requirements and the spec-
ifications listed in these operating instructions.
Avoid any direct contact with the mounted tool both
during and after use because it may be hot or have
sharp edges.
The rated speed of the mounted tool must be at
least equal to the maximum speed marked on the
air tool. Accessories running faster than their rated
speed can break and fly apart.
4.6 Risks in the workplace
Slipping, tripping and falling are the main reasons
for accidents in the workplace. Pay attention to
surfaces that may have become slippery as a result
of using the air tool, and also watch that the air hose
does not cause someone to trip.
The air tool is not designed for use in explosive envi-
ronments and is not insulated against contact with
sources of electric power.
Ensure that the area where you wish to work is free
of power cables, gas lines or water pipes (e.g. using
a metal detector).
4.7 Risks associated with dust and vapours
The dust and vapours generated when the air tool is
used may carry health risks (e.g. cancer, birth
defects, asthma and/or dermatitis); it is therefore
imperative that a risk assessment is carried out in
relation to these risks and that suitable controls are
then implemented.
The risk assessment should take into account both
the dust generated while the air tool is used and any
existing dust that may be raised during operation.
The air tool must be operated in accordance with
the recommendations set forth in these instructions
and must be maintained in order to minimise the
release of dust and vapours.
The extracted air must be discharged in such a way
that, in a dust-filled environment, the minimum of
dust is raised.
If dust or vapours are generated, the main priority is
to control these at the location where they are
released.
All integral or accessory parts on the air tool that are
designed to collect, extract or prevent airborne dust
or vapours must be used and maintained in accord-
ance with the manufacturer's instructions.
To avoid increasing the amount of dust or vapours
generated unnecessarily, consumables and the
mounted tool must be selected, maintained and
replaced in accordance with these instructions.
Use protective breathing apparatus in accordance
with your employer instructions or in accordance
with health and safety regulations.
4.8 Risks associated with noise
Failure to use adequate ear protectors when the
noise level is high can result in lasting damage to
hearing, hearing loss and other problems, such as
tinnitus (ringing, whistling or buzzing in the ear).
It is vital to carry out a risk assessment in relation to
these risks and to implement appropriate control
measures that take the risks into account.
Appropriate risk control measures may include, for
example, the use of sound-insulating materials to
prevent the knocking sounds that occur on the
workpieces.
Use ear protection in accordance with your
employer instructions or in accordance with health
and safety regulations.
The air tool must be operated in accordance with
the recommendations provided in these instruc-
tions and must be maintained in order to avoid
unnecessarily raising the noise level.
To avoid increasing the noise level unnecessarily,
consumables and the mounted tool must be
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