Makita 6176D Manual de instruções - Página 9

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Makita 6176D Manual de instruções

MAINTENANCE

Drilling operation
002138
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 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.
•
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.
CAUTION:
•
Always be sure that the tool is switched off before
attempting to perform inspection or maintenance.
To maintain product SAFETY and RELIABILITY, repairs, any
other maintenance or adjustment should be performed by
Makita Authorized or Factory Service Centers, always using
Makita replacement parts.
Nominal diameter of
wood screw (mm)
3.1 (1/8")
3.5 (9/64")
3.8 (5/32")
4.5 (11/64")
Recommended size
of pilot hole (mm)
2.0 - 2.2 (5/64" - 3/32")
2.2 - 2.5 (3/32" - 3/32")
2.5 - 2.8 (3/32" - 7/64")
2.9 - 3.2 (7/64" - 1/8")
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