Makita DA6301 Manual De Instrucciones página 5

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Speed change (Fig. 2)
To change the speed, pull the pin and slide the button to
the "L" position for low speed or the "H" position for high
speed. If the button does not slide easily, turn the chuck
slightly in either direction while sliding the button.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Spade grip (Fig. 3 & 4)
The spade grip can be installed in either of the positions
as shown in the figure. To change the location of the
spade grip from one position to the other, loosen the hex
bolts with a wrench and turn the spade grip to another
position. Then tighten the hex bolts securely.
Installing or removing drill bit (Fig. 5)
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.
OPERATION
Holding tool (Fig. 6 & 7)
CAUTION:
• This is a powerful tool. High torque is developed and it
is important that the tool should 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.
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 excep-
tions are iron and brass which should be drilled dry.
All manuals and user guides at all-guides.com
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 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 hid-
den 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. 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,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
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.
• Drill bits
• Hole saws
• Chuck key
5

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