Makita DS4012 User Manual

5
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Installing top grip (auxiliary handle)
015405
Screw the top grip on the tool securely.
Installing or removing drill bit
1
015406
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 r e m o ve t he b it , t ur n t he c h uc k ke y co un t e rc l o c k wi se
in just one hole, then loosen the chuck by hand.
After using the chuck key, be sure to return to the
original position.
OPERATION
015407
Drilling operation
Always use the top or back grip (auxiliary handle) and
firmly hold the tool by top or back grip and switch handle
during operations.
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 p re ve nt th e bit f r o m s li ppin g wh en st art in g a h o le ,
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
1
001145
1. Limit mark
1. Chuck key

Makita DS4012 Specifications

General

Drilling	Yes
Screwdriving	-
Idle speed (max)	600 RPM
Idle speed (min)	0 RPM
Chuck capacity (max)	- mm
Drilling diameter in wood (max)	36 mm
Drilling diameter in steel (max)	13 mm
Amperage	8.5 A
Power source	AC

Weight and Dimensions

Depth	340 mm
Width	83 mm
Height	390 mm
Weight	2800 g