Drilling Operation; Maintenance - Makita 6305 Betriebsanleitung

Indicator lamp (Fig. 2)
The green power-ON indicator lamp lights up when the
tool is plugged to the mains. If the indicator lamp is lit but
the tool does not start even if the tool is switched ON, the
carbon brushes may be worn out, or the motor or the
switch may be defective. If the indicator lamp does not
light up, the mains cord or the indicator lamp may be
defective. When the mains cord is defective, the tool
neither starts nor lights the indicator lamp. When the
indicator lamp is defective, the tool starts without the
indicator lamp lighting up.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing side grip (auxiliary handle)
CAUTION:
• Always be sure that the side grip is installed securely
before operation. (Fig. 3)
Screw the side grip on the tool barrel securely.
For work with a side grip at the other different angles,
another type of side grip (auxiliary handle) is available as
an optional accessory. Follow the installation procedure
below.
Installing or removing drill bit (Fig. 4)
To install the bit, place it in the chuck as far as it will go.
Tighten the chuck by hand. Place the chuck key in each of
the three holes and tighten clockwise. Be sure to tighten
all three chuck holes evenly.
To remove the bit, turn the chuck key counterclockwise in
just one hole, then loosen the chuck by hand.
After using the chuck key, be sure to return to the original
position.
Depth gauge (Fig. 5)
The depth gauge is convenient for drilling holes of uniform
depth.
Loosen the side grip and remove it. Fit the convex on the
stopper holder to the concave on the tool barrel. Insert the
side grip into the stopper holder and screw the side grip.
Insert the depth gauge into the hole in the stopper holder.
Adjust the depth gauge to the desired depth and then
tighten the side grip firmly. (Fig. 6)
Side grip assembly (optional accessory)
(Fig. 7)
Install the side grip assembly so that the teeth on the grip
fit in between the protrusions on the tool barrel.
Then tighten the grip by turning clockwise at the desired
position. It may be swung 360° so as to be secured at any
position.
NOTE:
• The depth gauge cannot be used at the position where
the depth gauge strikes against the tool body.
OPERATION
Holding tool (Fig. 8 & 9)
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.
Grasp the rear handle and the front grip firmly when
starting or stopping the tool, since there is an initial and
final reaction.
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.

Drilling operation

Drilling in wood
When drilling in wood, the best results are obtained with
wood drills equipped with a guide screw. The guide screw
makes drilling easier by pulling the bit into the workpiece.
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
exceptions 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
performance and shorten the service life of the tool.
• There is a tremendous twisting force exerted on the
tool/bit at the time of hole breakthrough. Hold the tool
firmly and exert care when the bit begins to break
through the workpiece.
• A stuck bit can be removed simply by setting the
reversing switch to reverse rotation in order to back
out. However, the tool may back out abruptly if you do
not hold it firmly.
• Always secure small workpieces in a vise or similar
hold-down device.
• Avoid drilling in material that you suspect contains
hidden nails or other things that may cause the bit to
bind or break.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
Replacing carbon brushes (Fig. 10)
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.
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