Hitachi DH 22PG Manual De Instrucciones página 11

3. Rotation only
This rotation hammer can be set to
rotation only mode by turning the change
lever to the mark (Fig. 9)
Change lever
Fig. 9
To drill a wood or metal material using
the separately sold drill chuck and chuck
adaptor, proceed as follows. Installing
drill chuck and chuck adaptor (Fig. 10):
(1) Attach the drill chuck to the chuck
adaptor.
(2) The part of the SDS-plus shank is the
same as the drill bit. Therefore, refer to
the item of "Mounting the drill bit" for
attaching it.
Front cap
Drill bit
Chuck adapter
Part of SDS-plus shank
CAUTION:
Application of force more than
necessary will not only reducing
drilling efficiency at all, but will
deteriorate the tip edge of the drill bit
and reduce the service life of the
rotary hammer in addition.
Drill bit may snap off while withdrawing
the rotary hammer from the drilled hole.
For withdrawing, it is important to use a
pushing motion.
Do not attempt to drill anchor holes or
holes in concrete with the main unit in
the rotation only function.
Grip
Fig. 10
Do not attempt to use the rotary
hammer in the rotation and hammering
function with the drill chuck and chuck
adaptor attached. This would seriously
shorten the service life of every
components of the machine.
4. When driving machine screws
(Fig. 11)
First, insert the bit into the socket in the
end of chuck adaptor (D).
Next, mount chuck adaptor (D) on the
main unit using procedures described in
6 (1), (2), (3), put the tip of the bit in the
slots in the head of the screw, grasp the
main unit and tighten the screw.
Bit
Socket
Chuck
adapter
(D)
CAUTION:
Exercise care not to excessively prolong
driving time, otherwise, the screws may
be damaged by excessive force.
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.
Do not attempt to use the rotary ham-
mer in the rotation and hammering func-
tion with chuck adaptor (D) and bit at-
tached.
5. When driving wood screws
(1) Selecting a suitable driver bit
Employ phillips screws, if possible, since
the driver bit easily slips off the heads of
slotted-head screws.
English
Front cap
Grip
Fig. 11
11