Hitachi Koki USA DH 24PC - Manual (Page 11)

11
English
6. Mounting the drill bit (Fig. 2)
(1) To attach a drill bit (SDS-plus shank),
fully pull the grip in the direction of the
arrow as shown in Fig. 2 and insert the
drill bit as far as it will go while manu-
ally turning.
(2) By releasing the grip, the drill bit will
be secured.
(3) To remove the drill bit, fully pull the grip
in the direction of the arrow and pull
out the drill bit.
7. Installation of dust cup or dust col-
lector (B) (Optional accessories)
(Fig. 3, Fig. 4)
When using a rotary hammer for up-
ward drilling operations attach a dust
cup or dust collector (B) to collect dust
or particles for easy operation.
⅜ Installing the dust cup
Use the dust cup by attaching to the
drill bit a shown in Fig. 3.
When using a bit which has big diam-
eter, enlarge the center hole of the dust
cup with this rotary hammer.
⅜ 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. 4)
CAUTION:
⅜ 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.
⅜ Insert dust collector (B) completely into the chuck part of the main unit.
⅜ 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 7-15/
32" (190 mm) of overall length, dust collector (B) cannot touch the concrete
surface but rotates. Therefore please use dust collector (B) by attaching to drill
Fig. 2
Dust Cup
Fig. 4
Dust Collector (B)
Fig. 3
Part of SDS-plus
shank
Front cap
Grip
Drill bit