Hitachi Koki DH18DBL Instructions De Sécurité Et Mode D'emploi page 10

English
When the end of the nozzle and the tip of the drill bit
are aligned, the distance that the nozzle can move is
drilling depth. (Fig. 9)
A
4. Drilling (Fig. 10, 11, 12)
NOTE
○ The dust extractor system is only to be used when
drilling concrete.
Do not use it while drilling metal or wood.
○ Do not use the dust extractor system with wet
concrete or in a wet environment. Doing so may result
in a malfunction.
(1) Grasp the nozzle with your hand and pull it back
slightly, and align the tip of the drill bit with the spot to
be drilled. (Fig. 10)
Pull the nozzle back slightly
1
and align the tip of the drill bit
with the spot to be drilled.
Nozzle
Spot to be drilled
(2) Release the nozzle and allow it to make fi rm contact
with the surface of the concrete. (Fig. 11)
End of the nozzle in fi rm contact
2
with the concrete surface
10
A: Drilling depth
Fig. 9
Fig. 10
Fig. 11
NOTE
If the nozzle is raised off the surface, the dust
extraction performance declines.
(3) With the end of the nozzle still in fi rm contact with the
surface of the concrete, proceed with drilling. (Fig. 12)
Delayed stop function
The dust extractor system's internal motor stops after a
delay of several seconds from when the tool's switch is
released. This allows dust to be extracted without leaving
any dust behind.
5. Emptying the dust (Fig. 13, 14, 15)
If too much dust is collected in the dust box, the dust
extraction performance declines.
Additionally, if the dust box is full, dust may leak out of
the dust extractor system.
Inspect the dust extractor system regularly, and
dispose of the dust before it becomes full.
WARNING
When emptying the dust, in order to prevent an
unlikely accident, be sure to turn off the tool's
switch and remove the rechargeable battery
from the tool body.
CAUTION
Wear a dust mask.
NOTE
Do not directly touch the fi lter with a hard brush or
similar tool, or blast the backside of the fi lter with
compressed air.
Also, do not wash the fi lter with water.
Doing so may scratch the fi lter and/or shorten its life.
Firm contact with
the concrete surface
3
Drilling
Raised off the
concrete surface
Fig. 12