Maintenance - Makita DA6301 Betriebsanleitung

Holding tool (Fig. 4 & 5)
CAUTION:
This is a powerful tool. High torque is developed and it is
important that the tool be securely held and properly
braced.
Grasp the switch handle with one hand and the spade
grip with the other hand. When drilling a large hole with a
hole saw, etc., the side grip (auxiliary handle) should be
used as a brace to maintain safe control of the tool.
When drilling action is forward (clockwise), the tool
should be braced to prevent a counterclockwise reaction
if the bit should bind. When reversing, brace the tool to
prevent a clockwise reaction. If the bit must be removed
from a partially drilled hole, be sure the tool is properly
braced before reversing.
Switch action (Fig. 6)
The switch is reversible, providing either clockwise or
counterclockwise rotation. To start the tool, simply pull
the lower part of the switch for clockwise, the upper part
for counterclockwise. Release the switch to stop.
CAUTION:
• Before plugging in the tool, always check to see that
the switch actuates properly and returns to the "OFF"
position when released.
• Change the direction of rotation only when the tool
comes to a complete stop. Changing it before the tool
stops may damage the tool.
Speed change (Fig. 7)
To change the tool speed, pull the pin and slide the but-
ton to the desired position (High or Low). If the button
does not slide easily, turn the chuck in either direction
while sliding the button.
Drilling operation
• Drilling in wood
When drilling holes in the wood, use a wood drill with a
guide screw. The guide screw makes it bore naturally
by itself, so you do not need to apply any pressure to
the tool.
• Drilling in metal
To prevent the bit from slipping when starting a hole,
make an indentation with a center-punch and hammer
at the point to be drilled. Place the point of the bit in the
indentation and start drilling.
Use a cutting lubricant when drilling metals. The excep-
tions are iron and brass which should be drilled dry.
CAUTION:
• Pressing excessively on the tool will not speed up the
drilling. In fact, this excessive pressure will only serve
to damage the tip of your bit, decrease the tool perfor-
mance and shorten the service life of the tool.
• There is a tremendous force exerted on the tool/bit at
the time of hole break through. Hold the tool firmly and
exert care when the bit begins to break through the
workpiece.
• Always grip the small workpiece firmly with a vise or a
holding means.
• A stuck bit can be removed simply by setting the
reversing switch to reverse rotation in order to back out.
However, the tool will pull away easily unless you hold it
firmly before starting the tool.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Replacing carbon brushes (Fig. 8 & 9)
Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps.
To maintain product safety and reliability, repairs, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Center.
ACCESSORIES
CAUTION:
These accessories or attachments are recommended for
use with your Makita tool specified in this manual. The
use of any other accessories or attachments might
present a risk of injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita service center.
• Chuck key S13
• Hole saw 79 mm and 95 mm
5