Ryobi G-2240 Owner's Operating Manual page 12

Secure all work before beginning a grinding
operation.
Secure small workpieces in a vise or clamp to a
workbench.
DANGER. Never use your 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.
WARNING. Never use your grinder
without wearing eye protection.
Following this rule will reduce the risk of
serious personal injury.
The key to efficient operation begins by controlling
the pressure and surface contact between the
grinding wheel and workpiece. Flat surfaces are
ground at an acute angle, normally between 5 to 15
degrees.
For maximum control, hold the grinder in front and
away from you with both hands, keeping the
grinding wheel clear of the workpiece. Start your
grinder and let the motor and grinding wheel build
up to full speed. Gradually lower grinder until the
grinding wheel contacts the workpiece.
For best results keep the grinder tilted at an angle
from 5 to 15 degrees, Fig.8, and continuously
moving at a steady, consistent pace. Move the
grinder back and forth or up and down over the
work area. Keep the grinder moving so that an
excessive amount of material is not removed from
one area. 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. Heavy pressure will
decrease its 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 your grinder off.
OPERATION
11
5º TO 15º 5º TO 15º
Fig. 8