Hitachi Koki USA DH 24PC - Manual (Page 14)

14
English
CAUTION:
⅜ Exercise care not to excessively prolong driving time, otherwise, the screws
may be damaged by excessive force.
⅜ Apply the rotary hammer perpendicularly to the screw head when driving a
screw; otherwise, the screw head or bit will be damaged, or driving force will
not be fully transferred to the screw.
⅜ Do not attempt to use the rotary hammer in the rotation and striking function
with chuck adaptor (D) and bit attached.
5. When driving wood screws (Fig. 10)
(1) Selecting a suitable driver bit
Employ phillips screws, if possible, since the driver bit easily slips off the heads
of slotted-head screws.
(2) Driving in wood screws
⅜ Prior to driving in wood screws, make pilot holes suitable for them in the wooden
board. Apply the bit to the screw head grooves and gently drive the screws into
the holes.
⅜ After rotating the rotary hammer at low speed for a while until a wood screw in
partly driven into the wood, squeeze the trigger more strongly to obtain the
optimum driving force.
CAUTION:
⅜ Exercise care in preparing a pilot hole suitable for the wood screw taking the
hardness of the wood into consideration. Should the hole be excessively small
or shallow, requiring much power to drive the screw into it, the thread of the
wood screw may sometimes be damaged.
6. Striking only
This rotary hammer can be set to strik-
ing only mode by pressing the push
button and turning the change lever to
mark. (Fig. 11)
(1) Mount the bull point or cold chisel.
(2) Press the push button and set the
change lever to middle of mark and
mark. (Fig. 12)
Then rotation is released, turn the grip
and adjust the cold chisel to desired po-
sition. (Fig. 13)
(3) Turn the change lever to mark. (Fig.
11)
Then bull point or cold chisel is locked.
Change Lever
Push
button
Fig. 11
Fig. 12
Push
button
Change Lever