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Bosch GWS18V-45C Instrucciones De Funcionamiento Y Seguridad página 17

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160992A3WF 08-18 GWS18V-45C.qxp_GWS 8/28/18 1:07 PM Page 17
SELECTING GRINDING WHEELS
maximum safe operating speed is not
exceeded by the nameplate speed of the
grinder. Do not exceed the recom mended
wheel diameter.
DISC GRINDING WHEELS
Grinding wheels should be carefully selected in
order to use the grinder most efficiently. Wheels
vary in type of abrasive, bond, hardness, grit
size and structure. The correct type of wheel to
use is determined by the job. Use disc grinding
wheels for fast grinding of structural steel,
heavy weld beads, steel casting, stainless steel
and other ferrous metals.
GRINDING TIPS
Efficient grinding is achieved by controlling the
pressure and keep ing the angle between wheel
and workpiece at 10° to 15°. If the wheel is flat,
CUTTING METAL
Using the optional Type 41/1A wheel guard,
it is possible to perform limited cutting on
small stock such as metal tubes, piping or
rebar. When cutting, work with moderate
feed, adapted to the material being cut. Do
not exert side pressure onto the cutting disc,
tilt or oscillate the tool. When cutting profiles
and square bar, it is best to start at the
smallest cross section.
Grinding Operations
Before using a grinding
wheel, be certain that its
Cutting Operations
Do not use this grinder for
cutting masonry.
the tool is difficult to control. If the angle is too
steep, the pressure is concentrated on a small
area causing burning to the work surface.
pressure on the wheel will
slow grinding action and put dangerous
stresses on the wheel.
When grinding with a new wheel be certain to
grind while pulling tool backwards until wheel
becomes rounded on its edge. New wheels
have sharp corners which tend to "bite" or cut
into work piece when pushing forward.
• Always follow precautions for kickback.
• Do not apply side pressure to cutting wheel
to reduce wheel speed.
• The tool should always be used so that
sparks are directed away from user.
-17-
Excessive or sudden

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