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Bosch GWS Professional 24-230 JBX Manual Original página 32

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OBJ_BUCH-769-005.book Page 32 Wednesday, July 15, 2009 11:24 AM
32 | English
Working Advice
Exercise caution when cutting slots in
structural walls; see Section "Information
on Structures ".
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.
After heavily straining the power tool, con-
tinue to run it at no-load for several minutes
to cool down the cutting/grinding tool.
Grinding and cutting discs become very hot
while working; do not touch until they have
cooled.
Do not use the power tool with a cut-off
stand.
Note: When not using for extended periods, pull
the mains plug out of the socket outlet. When
the mains plug is inserted and mains voltage is
given, the power tool, even when switched off,
still consumes a low amount of current.
Rough Grinding
Never use a cutting disc for roughing.
The best roughing results are achieved when
setting the machine at an angle of 30° to 40°.
Move the machine back and forth with moderate
pressure. In this manner, the workpiece will not
become too hot, does not discolour and no
grooves are formed.
Flap Disc
With the flap disc (accessory), curved surfaces
and profiles can be worked.
Flap discs have a considerably higher service
life, lower noise levels and lower sanding tem-
peratures than conventional sanding sheets.
Cutting Metal
For cutting metal, always work with the pro-
tection guard for cutting 10.
When cutting, work with moderate feed, adapt-
ed to the material being cut. Do not exert pres-
sure onto the cutting disc, tilt or oscillate the
machine.
Do not reduce the speed of running down cut-
ting discs by applying sideward pressure.
1 609 929 R45 | (15.7.09)
start at the smallest cross section.
Cutting Stone
For cutting stone, always work with the cut-
ting guide with dust extraction protection
guard 21.
The machine may be used only for dry cut-
ting/grinding.
For cutting stone, it is best to use a diamond
cutting disc. As a safety measure against jam-
ming, the cutting guide with dust extraction pro-
tection guard 21 must be used.
Operate the machine only with dust extraction
and additionally wear a dust protection mask.
The vacuum cleaner must be approved for the
extraction of masonry dust. Bosch provides suit-
able vacuum cleaners.
For cutting expecially hard material, e. g., con-
crete with high pebble content, the diamond
cutting disc can overheat and become damaged
as a result. This is clearly indicated by circular
sparking, rotating with the diamond cutting
disc.
The machine must
always work in an
up-grinding mo-
tion. Otherwise,
the danger exists
of it being pushed
uncontrolled out
of the cut.
When cutting pro-
files and square
bar, it is best to
Switch on the ma-
chine and place
the front part of
the cutting guide
on the workpiece.
Slide the machine
with moderate
feed, adapted to
the material to be
worked.
Bosch Power Tools

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