Working Advice; Cutting Metal - Bosch GWS 7-100 Professional Notice Originale

16 | 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.
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 13.
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.
1 619 P07 393 | (22.7.09)
Cutting Stone
For cutting stone, always work with the cut-
ting guide with dust extraction protection
guard 20.
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 20 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.
al, e. g., concrete 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 cut-
ting 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
start at the small-
est cross section.
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.
For cutting expe-
cially hard materi-
Bosch Power Tools