may pose a risk of cutting into hidden power
cables or your own machine cable. Contact
with live cables transfers an electric current
to metallic machine components and causes
electric shocks.
– Keep the power cable away from rotating parts.
If you lose control, the power cable could be cut
or become stuck and your hand or arm could be
drawn into the rotating parts.
– Never set the machine down until the tool has
stopped completely. Turning tools can catch on
the storage surface, causing you to lose control
of the machine.
– Never allow the machine to operate while car-
rying it at your side. The rotating tool can catch
on your clothing by accident and cause serious
cutting injuries.
– Clean the air vent slits on your machine on a
regular basis. The cooling air fan sucks the dust
into the machine and excessive deposits of metal
dust can result in electrical hazards.
– Never operate the machine near combustible
materials. Sparks can ignite these materials.
– Never use tools that have to be liquid-cooled.
Water and other liquid coolants can cause po-
tentially fatal electric shocks.
Cause and prevention of kickbacks
A kickback is a sudden reaction to jamming or
catching of a rotating disc, a support plate, a brush
or other accessory. Jamming or catching results
in a rapid standstill of the rotating accessory,
whereby, as a counter-reaction, an out-of-control
machine is accelerated around the jamming point
in a direction of rotation opposed to the accessory.
If, for example, a sanding disc is jammed or
caught by the workpiece, the disc circumference
can dig into the workpiece surface at the jam-
ming point, causing the disc to be expelled. The
disc can either fl y towards or away from the user,
depending on the direction of rotation of the disc
at the jamming point. This can also cause sanding
discs to break. A kickback is the result of misuse
of the machine and/or incorrect method of work
or operation and can be avoided by closely ob-
serving the following precautionary measures.
– Always hold the machine fi rmly and position
your body and arms such that you can control
any kickback force. Always use the auxiliary
handle, if included in the delivery, to ensure opti-
mum control over kickbacks or reaction torques
during start-up. The user can control reaction
torques or kickbacks if suitable precautionary
measures are taken.
– Never place your hands near rotating tools.
Tools can kick back over your hand.
– Never position your body in the area in which
the machine moves in the event of a kickback.
A kickback accelerates the machine in the di-
rection of rotation opposed to the disc at the
jamming point.
– Take extra care when working in corners, on
sharp edges, etc. Avoid kickbacks and prevent
the tool from seizing. Corners, sharp edges
or a jump back tend to cause the rotating tool
to catch, thus leading to a loss of control or a
kickback.
Special safety instructions for fi ne sanding
– Do not use excessively large sanding discs
when fi ne sanding. Observe the specifi cations
of the manufacturer when selecting abrasive
discs. A sanding disc that is too large and pro-
trudes over the sanding pad represents a cutting
injury hazard and can cause catching, disc tears
or kickbacks.
Additional Safety Warnings
– Hold the machine fi rmly with both hands and
assume a stable stance when performing work.
Hold the machine with both hands to guide more
securely.
– If potentially explosive or self-igniting dust is
produced during sanding, the processing in-
structions of the material manufacturer must
be observed under all circumstances.
– Harmful/toxic dusts can be produced during
your work (e.g. lead-containing paint, some
types of wood and metal). Contact with these
dusts, especially inhaling them, can represent
a hazard for operating personnel or persons in
the vicinity. Comply with the safety regulations
that apply in your country. Connect the electric
power tool to a suitable extraction system. To
protect your health, wear a P2 protective mask.
– Never use machines with a damaged cable. Do
not touch damaged cables and pull the plug
from the mains power supply if the cable be-
comes damaged during work. Damaged cables
increase the risk of electric shock.
– Use a maximum of two extension pipes on the
machine.
9