Ubermann UAG04CHI Manual Del Operador página 34

OPERATION
Operating the Grinder
See Figure 8, page 15.
Always carefully select and use grinding wheels that are
recommended for the material to be ground. Make sure that
the minimum operating speed of any accessory wheel selected
is 9,000 /min. or more. The grinding wheel provided with the
grinder is suitable for grinding welds, preparing surfaces to be
welded, grinding structural steel, and grinding stainless steel.
To operate the grinder:
• Secure all work in a vise or clamp to a workbench.
DANGER:
Never use the grinder with the guard removed. It has been
designed for use only with the guard installed. Attempting to
use grinder with guard removed will result in loose particles
being thrown against the operator resulting in serious personal
injury.
• Hold the grinder in front and away from you with both hands,
keeping the grinding wheel clear of the workpiece.
• Turn on the grinder and let the motor and grinding wheel build
up to full speed.
• Lower the grinder gradually until the grinding wheel contacts
the workpiece.
• Keep the grinder tilted at an angle from 5 to 15 degrees from
the work surface.
WARNING:
To prevent loss of control and possible serious personal injury,
always operate the grinder with both hands, keeping one hand
on the side handle.
• Move the grinder continuously at a steady, consistent pace.
If the grinder is held in one spot too long, it will gouge and cut
grooves in the workpiece. If the grinder is held at too sharp an
angle, it will also gouge the workpiece because of concentration
of pressure on a small area.
• Use just enough pressure to keep the grinder from chattering
or bouncing. When too much pressure is applied, the overload
LED will flash. If the pressure isn't relieved, the tool will
automatically shut off.
NOTE: Heavy pressure will decrease the grinder' s speed and
put a strain on the motor. Normally the weight of the tool
alone is adequate for most grinding jobs. Use light pressure
when grinding jagged edges or loose bolts where there is the
potential for the grinder to snag on the metal edge.
• Lift the grinder away from the workpiece before turning off
the grinder.
11 - English