Bosch GWS 180 Bedienungsanleitung Seite 20

a
b
Cutting Stone
The machine must be used only for dry cut-
ting/grinding.
The machine must be operated only with dust ex-
traction. In addition, wear a dust mask.
1 609 929 B76 • TMS • 30.11.00
Owners of the Bosch cut-
ting stand of the design in
figure A require the cap a
(optional extra set, order
no. 2 607 001 306).
Owners of the Bosch cut-
ting stand of the design in
figure B require the claw b
(optional extra set, order
no. 2 607 001 306).
The handle must
locked in the position
shown in figure C (with the
On/Off switch pointing
downwards). In any other
position the handle and
the handle unlocking lever
can become damaged by
the grinding dust deposit.
It is best to work with
a diamond cutting
disc. To ensure
against tilting,
cutting guide 23
with special protec-
tive vacuuming hood
must be used.
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.
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.
be
Rotating the Machine Head
Before any work on the machine itself, pull
the mains plug.
the
Unscrew completely the four screws.
Rotate the machine head carefully and without
removing from the housing to the new position.
Screw in the screws again and tighten.
English - 7
The machine head
can be rotated with
respect to the ma-
chine housing in 90°
steps. In this man-
ner, the on/off switch
can be brought to an
advantageous han-
dling position for
special working situ-
ations, e. g., for cut-
ting work with the
cutting guide 23/
cut-off stand (op-
tional extra) or for
left-handed persons.