Grinding Operations - Bosch GWS10-450 Operating/Safety Instructions Manual

tool, since torque from the motor can
cause the tool to twist.
Start the tool before applying to work and
let the tool come to full speed before
contacting the workpiece. Lift the tool from
the work before releasing the switch. DO
NOT turn the switch "ON" and "OFF" while
the tool is under load; this will greatly
decrease the switch life.
Side On-Off Switch
with Lock
The tool is switched "ON" by the side
switch located at the side of the motor
housing (Fig. 14). The switch can be locked
in the "ON" position, a convenience for long

grinding operations.

To turn the tool "ON" without locking it,
move the switch forward by applying
pressure ONLY at the REAR portion of the
switch. When pressure is released the
switch will return to "OFF" position.
TO LOCK THE SWITCH "ON", move the
switch forward and press the FRONT
portion.
TO UNLOCK THE SWITCH, simply press and
release the REAR portion of the slider.
Switch is spring loaded and will snap back
automatically.
Operating Instructions
Hold the tool with both
hands while starting the
Side
Switch
Paddle Switch
The paddle switch has a lock-off feature to
help prevent accidental startups.
TO TURN TOOL "ON", push lock-off switch
forward to unlock the paddle switch, then
squeeze paddle switch (Fig. 15).
TO TURN TOOL "OFF", release pressure on
paddle switch. The switch is spring loaded
and will return to the "OFF" position
automatically.
ON
OFF
Grinding Operations
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.
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
Fig. 14
by the job. Use disc grinding wheels for fast
grinding of structural steel, heavy weld
beads, steel casting, stainless steel and
other ferrous metals.
-19-
Before using a grinding
wheel, be certain that its
DISC GRINDING WHEELS
Fig. 15