Bosch GWS 21-180 H Bedienungsanleitung Seite 20

Cutting
When cutting, do not press, tilt or
oscillate. Work with moderate ad-
vancing that is adapted to the mate-
rial being worked.
Do not brake coasting cutting disks
with side pressure.
Cutting grinder Stand
With the cutting grinder stand 27 (optional extra),
work pieces of the same length can be cut at an-
gles of 0 to 45°.
The safety notes and operating instructions in the
respective operating instructions manual of the
angle grinder are to be strictly observed. Use only
original Bosch grinder stands.
21 • 1 609 929 C63 • TMS • 25.07.01
Important is the di-
rection in which cut-
ting is performed.
The machine must
always work opposite
to the direction of ro-
tation. Therefore,
never move the ma-
chine in the other di-
rection! Otherwise,
the danger exists of it
being pushed un-
controlled out of the
cut.
27
English - 7
Cutting Stone
The machine must be used only for dry
cutting/grinding.
Operate the machine with dust extraction only. In
addition, wear a dust mask.
Slide the machine with moderate advancing that
is adapted to the material to be worked (Figure).
For cutting especially hard material, e. g., con-
crete with high gravel content, the diamond cut-
ting disc can overheat and become damaged as
a result. This is indicated clearly by a ring of
sparks that rotates with the diamond cutting disc.
In this case, interrupt the cutting process and al-
low the diamond cutting disc to cool by running
frely at no-load speed for a short time.
Noticeable decreasing work progress and a rotat-
ing spark ring are indications of a diamond cutting
disc that has become dull. With brief cuts in an
abrasive material (e. g., chalky sand stone), it
can be sharpened again.
It is best to use a
diamond cutting disc.
As a safety measure
against jamming, use
the cutting guide 24
with the special
dust extraction wheel
guard.
The vacuum cleaner
must be approved for
the extraction of ma-
sonry dust.
Bosch provides suit-
able vacuum clean-
ers.
Switch on the ma-
chine and place the
front part of the cut-
ting guide on the
workpiece.