Hitachi Koki G 12SA3 Instrucciones De Seguridad Y Manual De Instrucciones página 13

GRINDER OPERATION
1. Hold the grinder firmly by its housing
and side handle (Fig. 1).
The grinder produces a counterforce which
must be controlled by firmly holding onto
the grinder.
2. Turn the grinder "on". (Fig. 3)
While holding the grinder firmly, use one
finger to slide the switch to the "on"
position.
3. Use light grinding pressure.
There is no need to press hard when
grinding. Usually the grinder's own weight
is sufficient to allow the required light
contact with the surface to be ground.
WARNING:
4. Use proper grinding angle.
Grind only with the wheel's edge by lifting the grinder 15° to 30°, as shown in Fig. 4.
CAUTION: Do not use the entire surface of the depressed center wheel. Use only the
edge of the depressed center wheel.
5. Move the grinder in the proper direction.
When using a new depressed center wheel
in direction A (Fig. 4), the wheel edge may
cut into the workpiece. In this case, grind
in direction B (Fig. 4).
Once the wheel edge is worn, the workpiece
can be ground in both directions.
NOTE: The wheel provided (resinoid wheel) is
rated as Class A grain and # 36 grain
size. It is most suitable for heavy
grinding of steel and other types of
materials.
6. Adjust operation to desired finish.
For a fine finish, decrease pressure by lifting slightly. Grind slowly and at the appropriate
speed.
CAUTION: The revolving depressed center wheel will create air turbulence.
Do no lay the grinder down in areas of dust or dirt until it has come to a
complete stop.
Do not press the grinder forcibly against the surface to be ground. Heavy
pressure can result in wheel breakage and serious injury. It can also
damage the surface being ground or damage the grinder's motor.
ON OFF
Fig. 3
A B
Fig. 4
English
Switch
15°~30°
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