Metabo KFM 9-3 RF Manual Original página 13

4.1 Kickback and Related Warnings
Kickback is the sudden response to an accessory
pinching or jamming while rotating. Pinching or
snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled
power tool to be forced in the direction opposite of
the accessory's rotation at the point of the binding.
For example, if an indexable insert is snagged or
pinched by the workpiece, the edge of the insert that
is entering into the pinch point can dig into the
surface of the material causing the insert to climb
out or kick out. The indexable insert may either jump
toward or away from the operator, depending on
direction of the indexable insert holder at the point
of pinching. Indexable inserts may also break under
these conditions.
Kickback is the result of power tool misuse and/or
incorrect operating procedures or conditions It can
be prevented if suitable precautionary measures
are taken as described below.
a) Maintain a firm grip on the power tool and
position your body and arm to allow you to
resist kickback forces. The operator can control
kickback forces, if proper precautions are taken.
b) Use special care when working corners,
sharp edges etc. Avoid bouncing and snagging
the accessory. Corners, sharp edges or bouncing
have a tendency to snag the rotating accessory and
cause loss of control or kickback.
c) Always feed the bit into the material in the
same direction as the cutting edge is exiting
from the material (which is the same direction
as the chips are thrown). Feeding the tool in the
wrong direction causes the cutting edge of the bit to
climb out of the work and pull the tool in the direction
of this feed.
d) Prevent any jamming of the indexing insert
or excessive pressure. Do not set the chamfer
height greater than the permitted maximum.
Overstressing the indexable insert increases the
loading and susceptibility to twisting or binding of
the indexable insert in the cut and the possibility of
kickback or breakage of the indexable insert.
e) Do not position your hand in line with and
behind the indexable insert. When the indexable
insert, at the point of operation, is moving away from
your body, the possible kickback may propel the
spinning indexable insert and the power tool directly
at you.
Turn/replace blunt indexable inserts or inserts
where the coating is worn in due time. Blunt
indexable inserts increase the risk of the machine
getting jammed and climb out.
4.2 Additional Safety Instructions:
Hold the power tool by insulated gripping
surfaces, because the cutter may contact its
own cord. Cutting a "live" wire may make exposed
metal parts of the power tool "live" and shock the
operator.
Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
WARNING – Always wear protective
goggles.
Wear ear protectors.
Wear a suitable dust protection mask.
Wear suitable work clothes.
Ensure that nobody gets injured by
catapulted foreign bodies.
Keep persons nearby and pets at a safe
distance to the device.
Keep away hair, loose clothing, fingers and
other body parts. They can get caught and
sucked in. Use a hair net for long hair.
Warning from rotating tools
Always wear protective goggles, gloves, and sturdy
shoes when working with this tool.
Danger of injury from sharp edges. Wear protective
gloves.
Indexable inserts, holders for indexable inserts,
workpiece and chips can be hot after work. Wear
protective gloves.
Wear ear protectors when working for long
periods of time. High noise levels over a
prolonged period of time may affect your hearing.
Use only sharp, undamaged indexable inserts.
The workpiece must lay flat and be secured against
slipping, e.g. using clamps. Large workpieces must
be sufficiently supported.
Ensure that sparks produced during work do not
constitute a risk to the user or others and are not
able to ignite flammable substances. Areas at risk
must be protected with flame-resistant covers.
Always keep a fire extinguisher on hand when
working in areas prone to fire risk.
Always hold the machine with both hands on the
intended handles, take a secure stance and
concentrate on the work.
Keep your hands away from the milling area and
from the tool.
Do not touch the rotating tool! Remove chips and
similar material only with the machine at a standstill.
Press the spindle locking button (2) only when the
motor is off.
Damaged, eccentric or vibrating tools must not be
used.
Do not work overhead.
Reducing dust exposure:
WARNING - Some dust created by power
sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to
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