Metabo KT 18 Manual Original página 15

teeth are not engaged into the material. If a saw
blade binds, it may walk up or kickback from the
workpiece as the saw is restarted.
d) Support large panels to minimise the risk of
blade pinching and kickback. Large panels tend
to sag under their own weight. Supports must be
placed under the panel on both sides, near the line
of cut and near the edge of the panel.
e) Do not use dull or damaged blades.
Unsharpened or improperly set blades produce
narrow kerf causing excessive friction, blade
binding and kickback.
f) Blade depth and bevel adjusting locking
levers must be tight and secure before making
the cut. If blade adjustment shifts while cutting, it
may cause binding and kickback.
g) Use extra caution when sawing into existing
walls or other blind areas. The protruding blade
may cut objects that can cause kickback.
4.3 Guard function
a) Check the guard for proper closing before
each use. Do not operate the saw if the guard
does not move freely and enclose the blade
instantly. Never clamp or tie the guard so that
the blade is exposed. If the saw is accidentally
dropped, the guard may be bent. Check to make
sure that the guard moves freely and does not touch
the blade or any other part, in all angles and depths
of cut.
b) Check the operation and condition of the
guard return spring. If the guard and the spring
are not operating properly, they must be
serviced before use. The guard may operate
sluggishly due to damaged parts, gummy deposits,
or a build-up of debris.
c) Assure that the base plate of the saw will not
shift while performing a "plunge cut". Blade
shifting sideways will cause binding and likely kick
back.
d) Always observe that the guard is covering
the blade before placing the saw down on
bench or floor. An unprotected, coasting blade will
cause the saw to walk backwards, cutting whatever
is in its path. Be aware of the time it takes for the
blade to stop after switch is released.
4.4 Additional safety instructions
Do not use any abrasive wheels.
Keep your hands away from the rotating tool!
Remove debris and similar material only when the
machine is at a standstill.
Wear a suitable dust protection mask.
Wear ear protectors.
Wear protective goggles.
Only turn the lever (14) with the battery pack
removed/ mains plug pulled and the motor section
pivoted up completely.
Do not reduce the speed of the saw blade by
pressing on the sides.
The movable motor section must move freely,
automatically, easily and exactly back into its end
position. It must not be clamped in place for sawing.
When sawing materials that generate large
quantities of dust, the machine must be cleaned
regularly. Make sure that the safety appliances, e.g.
the movable motor section, are in perfect working
order.
Materials that generate dusts or vapours that may
be harmful to health (e.g. asbestos) must not be
processed.
Check the workpiece for foreign bodies. When
working, always make sure that no nails or other
similar materials are being sawed into.
If the saw blade blocks, turn the motor off
immediately.
Do not try to saw extremely small workpieces.
During machining, the workpiece must be firmly
supported and secured against moving.
Clean gummy or glue-contaminated saw
blades. Contaminated saw blades cause
increased friction, jamming of the saw blade and
increase the risk of kickback.
Avoid overheating of the saw tooth tips. Avoid
melting of the material when sawing plastic.
Use a saw blade that is suitable for the material
being sawn.
For cleaning (e.g. the extraction channel) switch the
machine off, wait until the saw blade comes to a
standstill and remove the battery pack/ pull the
mains plug.
Remove the battery pack from the machine / pull the
mains plug out of the socket before making any
adjustments, changing tools, carrying out
maintenance or cleaning.
Reducing dust exposure:
WARNING - Some dust created by power
sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to
cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
- Lead from lead-based paints,
- crystalline silica from bricks and cement and other
masonry products, and
- arsenic and chromium from chemically treated
lumber.
Your risk from these exposures varies, depending
on how often you do this type of work. To reduce
your exposure to these chemicals, work in a well-
ventilated area, and work with approved safety
equipment, such as those dust masks that are
specially designed to filter out microscopic
particles.
This also applies to dust from other materials, such
as some timber types (like oak or beech dust),
metals, asbestos. Other known diseases are e.g.
ENGLISH en
15