16 ENGLISH
Drilling in wood or metal
CAUTION:
Hold the tool firmly and exert care
when the drill bit begins to break through the
workpiece.
There is a tremendous force exerted on
the tool/drill bit at the time of hole break through.
CAUTION:
A stuck drill 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.
CAUTION:
Always secure workpieces in a
vise or similar hold-down device.
NOTICE:
Never use “rotation with hammering”
when the drill chuck is installed on the tool.
The
drill chuck may be damaged.
Also, the drill chuck will come off when reversing the
tool.
NOTICE:
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 drill
bit, decrease the tool performance and shorten the
service life of the tool.
Set the action mode changing knob to the symbol.
For DHR280/DHR282
Optional accessory
Attach the chuck adapter to a keyless drill chuck to
which 1/2"-20 size screw can be installed, and then
install them to the tool. When installing it, refer to the
section “Installing or removing drill bit”.
1
2
►
1.
Keyless drill chuck
2.
Chuck adapter
For DHR281/DHR283
Use the quick change drill chuck as standard equip-
ment. When installing it, refer to "changing the quick
change chuck for SDS-plus".
Hold the ring and turn the sleeve counterclockwise to
open the chuck jaws. Place the bit in the chuck as far as
it will go. Hold the ring firmly and turn the sleeve clock
-
wise to tighten the chuck.
1
2
►
1.
Sleeve
2.
Ring
To remove the bit, hold the ring and turn the sleeve
counterclockwise.
Diamond core drilling
NOTICE:
If performing diamond core drilling
operations using “rotation with hammering”
action, the diamond core bit may be damaged.
When performing diamond core drilling operations,
always set the change lever to the position to use
"rotation only" action.
Beating dust on the filter
Optional accessory
CAUTION:
Do not turn the dial on the dust
case while the dust case is removed from the
dust collection system.
Doing so may cause dust
inhalation.
CAUTION:
Always switch off the tool when
turning the dial on the dust case.
Turning the dial
while the tool is running may result in the loss of
control of the tool.
By beating the dust on the filter inside the dust case,
you can keep the vacuum efficiency and also reduce
the number of times to dispose of the dust.
Turn the dial on the dust case three times after col-
lecting every 50,000 mm
3
of dust or when you feel the
vacuum performance declined.
NOTE:
50,000 mm
3
of dust equivalents to drilling 10
holes of ø10 mm and 65 mm depth (14 holes of ø3/8″
and 2″ depth).
