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Idiomas disponibles
Operating Instructions
Clamp the workpiece if it does not remain
stationary due to its own weight.
Do not strain the machine so heavily that it
comes to a standstill.
Grinding and cutting discs become very hot
while working; do not touch until they have
cooled.
Rough Grinding
The best roughing results are
achieved when setting the machine
at an angle of 30° to 40°. Move the
machine back and forth with moder-
ate pressure. In this manner, the
workpiece will not become too hot,
does not discolour and no grooves
are formed.
Never use a cutting disc for roughing.
Flap Disc
With the flap disc (accessory), curved surfaces
and profiles (contour sanding) can be worked.
Flap discs have a considerably higher service life
than sanding sheets, lower noise level and lower
sanding temperatures.
Cutting
When cutting, do not press, jam or
oscillate the machine. Work with
moderate feed, adapted to the ma-
terial being machined
Do not reduce the speed of running down cutting
discs by applying sideward pressure.
16
The direction in which
the cutting is per-
formed is important.
The machine must al-
ways
work
in
an
up-grinding
motion.
Therefore,
never
move the machine in
the
other
direction!
Otherwise, the danger
exists
of
it
being
pushed uncontrolled
out of the cut.
Cutting Grinder Stand
With the cutting grinder stand 19 (accessory),
work pieces of the same length can be cut at an-
gles of 0 to 45°.
When cutting profiles and square pipes, it is best
to start with the smallest cross section.
Cutting Stone
The machine must be used only for dry
cutting/grinding.
It is best to use a diamond cutting disc. As a
safety measure against jamming, use the cutting
guide 18 with the special dust extraction protec-
tion guard.
Operate the machine with dust extraction only. In
addition, wear a dust mask.
Slide the machine with moderate feed, adapted to
the material to be worked (Figure).
For cutting especially hard material, e. g., con-
crete with high pebble content, the diamond cut-
ting disc can overheat and become damaged as
a result. This is clearly indicated by circular spark-
ing, rotating with the diamond cutting disc.
In this case, interrupt the cutting process and al-
low the diamond cutting disc to cool by running
freely at no-load speed for a short time.
Noticeable decreasing work progress and circular
sparking are indications of a diamond cutting disc
that has become dull. Briefly cutting into abrasive
material (e. g., lime-sand brick) can resharpen the
disc.
The vacuum cleaner
must be approved for
the extraction of ma-
sonry dust.
BTI provides suitable
vacuum cleaners.
Switch on the ma-
chine and place the
front part of the cut-
ting guide on the
workpiece.
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