Hitachi DH 18DBL Handling Instructions Manual page 36

English
3. Mounting the drill bit (Fig. 7, 8)
CAUTION
To prevent accidents, make sure to turn
the switch off .
NOTE
When using tools such as drill bits, etc., make
sure to use the genuine parts designated by
our company.
(1) Clean the shank portion of the drill bit.
(2) Insert the drill bit in a twisting manner into the
tool holder until it latches itself. (Fig. 7)
The grip need not be adjusted during bit
installation.
(3) Check the latching by pulling on the drill bit.
(4) To remove the drill bit, fully pull the grip in the
direction of the arrow and pull out the drill bit. (Fig. 8)
4. Installation of dust cup or dust collector (B) (Optional accessories)
(Fig. 9, Fig. 10)
When using a rotary hammer for upward drilling operations attach
a dust cup or a dust collector (B) to collect dust or particles for
easy operation.
○ Installing the dust cup
Use the dust cup by attaching to the drill bit as shown in Fig. 9.
When using a bit which has big diameter, enlarge the center hole
of the dust cup with this rotary hammer.
○ Installing dust collector (B)
When using dust collector (B), insert dust collector (B) from the tip
of the bit by aligning it to the groove on the grip. (Fig. 10).
CAUTION
○ The dust cup and dust collector (B) are for exclusive use of
concrete drilling work. Do not use them for wood or metal
drilling work.
○ Insert dust collector (B) completely into the chuck part of the
main unit.
When turning the rotary hammer on while dust collector
(B) is detached from a concrete surface, dust collector (B)
will rotate together with the drill bit. Make sure to turn on
the switch after pressing dust cup on the concrete surface.
When using dust collector (B) attached to a drill bit that has
more than 190 mm of overall length, dust collector (B) cannot
touch the concrete surface and will rotate. Therefore, please
use dust collector (B) by attaching to drill bits which have
166 mm, 160 mm, and 110 mm overall length.
Part of
SDS-plus
shank
Drill bit
Drill bit
36
Grip
Front
cap
Fig. 7
Grip
Fig. 8
Dust cup
Fig. 9
Dust
collector (B)
Fig. 10