Makita dcg 230-d Operating Instructions Manual page 32

CAUTION
The insert tool may get hot during use. Wear protective
gloves when changing insert tools.
WARNING
Reduce the load on the power tool by avoiding tilt-
ing the disc in the kerf when cutting. The disc may
otherwise break, or the power tool may kick back or stall.
CAUTION
Improve the blood circulation in your fingers by re-
laxing your hands and exercising your fingers during
breaks between working.
WARNING
Keep inflammable materials away from the working
area.
7.1 Switching on / off
7.1.1 Switching on
WARNING
Test new cutting or grinding discs by allowing them
to run at maximum speed in a protected area for at
least 30 seconds.
1. Plug the supply cord into the power outlet.
2. Slide the on / off switch forward and then press it as
far as it will go.
7.1.2 Switching off
Release the on / off switch.
7.2 Restart interlock
NOTE
If the power tool is unplugged from the electric supply
while the on / off switch is pressed and subsequently
plugged back into the electric supply, the power tool will
not restart.
7.3 Adjusting the grip 6
WARNING
Do not attempt tp adjust the position of the grip while
the tool is running. Check to ensure that the grip is
engaged in one of the three possible positions.
To allow the power tool to be used comfortably in all
positions, the grip can be pivoted through 90° to the left
and the right.
1. Disconnect the supply cord plug from the power
outlet.
2. Release the locking lever by pulling it back.
3. Pivot the grip to the left or right as far as it will go.
4. Secure the grip in position by closing the locking
lever.
NOTE The power tool cannot be switched on as
long as the grip is not locked in one of the three
possible positions.
7.4 Working with the power tool
NOTE
Apply only moderate pressure.
NOTE
The direction in which the cut is made is important. The
disc must always cut in counter-rotating mode. Failure
to observe this point presents a risk of the cutting disc
being forced uncontrollably out of the kerf.
NOTE
Special discs should be used for working on non-ferrous
metals (e.g. aluminium).
NOTE
When the power tool is used in conjunction with the DC-
EX hood and a suitable vacuum cleaner, the volume of
dust emitted can be greatly reduced.
NOTE
The cutting disc may overheat and suffer damage when
cutting very hard mineral materials with a high hard
pebble content. A trail of sparks right round the circum-
ference of the cutting disc is a sure indication of this. In
this case, the cutting operation should be interrupted and
the cutting disc allowed to cool by running the power tool
under no load for a short time.
NOTE
A decrease in the rate of cutting progress may be an
indication of blunt/dull segments. The segments can be
resharpened by making a few cuts in an abrasive material
(Hilti sharpening plate or sand-lime block).
7.5 Rough grinding
CAUTION
Never use cutting discs for grinding.
When rough grinding, maximum efficiency is achieved
when the power tool is held with the disc at an angle
of 30° to the work surface. Excessive pressure applied
while grinding will damage the power tool, increase disc
wear and reduce grinding efficiency.
en
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