Hitachi DH 24PD Instrucciones De Manejo página 11

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3. Using the dust-collecting adapter and dust bag.
Using this unit with the dust-collecting adapter and
dust bag attached creates a more hygienic working
environment free of flying dust. Attach as shown in
Fig. 7. The unit can be used as an ordinary hammer
drill when the dust-collecting adapter and dust bag
are not attached.
(1) Attaching the dust-collecting adapter and the dust
bag.
a) Attaching the dust-collecting adapter.
Loosen the knob on the side handle and insert the
attachment rod on the dust-collecting adapter in
the mounting hole.
The adapter can be inserted from either direction A
or B (see Fig. 8). Insert and push in the hose in the
hose attachment hole of the main unit until it
reaches the inner surface (depth 15 mm) and confirm
that it is firmly fixed. (see Fig. 9).
b) Attaching the dust bag.
Insert the dust bag firmly in the dust bag attachment
hole on the main unit and fasten securely (see Fig.
10).
CAUTION
The dust-collecting adapter and dust bag is made
for use when drilling concrete. Do not use for
drilling holes in metal or wood.
(2) Adjusting the dust-collecting adapter.
a) Adjusting the position of the dust-collecting adapter.
After firmly inserting the drill bit, loosen the wing
bolt and drill bit tip and the end of the dust-
collecting adapter in contact with each other (see
Fig. 11).
b) Setting the hole-drilling depth.
Move the stopper to determine the stroke. The
stroke is the hole-drilling depth (see Fig. 11).
The maximum hole-drilling depth when using the
dust-collecting adapter is 100 mm.
It is possible when using the dust-collecting adapter
to use HITACHI drill bits up to a overall length of 216
mm. A hole-drilling depth of 45 mm will allow dust-
collecting when the overall length of the drill bit is
116 mm.
(3) Drilling holes
When drilling holes, secure the main unit so that the
end of the dust-collecting adapter contacts with the
contrete surface perfectly during drilling. Dust-
collecting effectiveness is reduced if the adapter is not
in contact with the surface (see Fig. 12).
(4) Removing dust
Excessive dust in the dust bag will reduce dust-
collecting effectiveness. Remove dust from the dust
bag regularly.
Remove the dust bag from the main unit, pull out the
rail and throw away the dust and clean (see Fig. 12).
4. When not using the dust-collecting adapter
When removing the dust-collecting adapter and the
dust bag to use as a normal hammer drill, insert the
provided cap in the hose attachment hole. (see Fig.
14). After removing the dust bag, the air blowing out
from the attachment hole is reduced and no air will
blow onto your face.
5. Rotation only
Remove the dust-collecting adapter as it cannot be
used. Insert the provided cap in the hose attachment
hole.
The hammer drill can be set to rotation only mode by
rotating the change lever fully clockwise to the
mark. (Fig. 15)
To drill wood or metal material using the drill chuck
and chuck adapter (optional accessories), proceed as
follows.
Installing drill chuck and chuck adapter: (Fig. 16)
(1) Attach the drill chuck to the chuck adapter.
(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.
CAUTIONS:
Application of force more than necessary will not only
expedite the work, but will deteriorate the tip edge of
the drill bit and reduce the service life of the hammer
drill in addition.
Drill bits may snap off while withdrawing the hammer
drill 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 machine set in the rotation only function.
Do not attempt to use the hammer drill in the rotation
and striking function with the drill chuck and chuck
adapter attached. This would seriously shorten the
service life of every component of the machine.
6. When driving machine screws (Fig. 17)
First, insert the bit into the socket in the end of the
chuck adapter (D).
Next, mount chuck adapter (D) on the main unit using
procedures described in 4 (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.
CAUTIONS:
Exercise care not to excessively prolong driving time,
otherwise, the screws may be damaged by excessive
force.
Apply the hammer drill perpendicularly to the screw
head when driving the 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 hammer drill in the rotation
and striking function with the chuck adapter and bit
attached.
7. When driving wood screws (Fig. 17)
(1) Selecting a suitable driver bit
Employ plus-head screws, if possible, since the driver
bit easily slips off the heads of minus-head screws.
(2) Driving in wood screws
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.
After rotating the hammer drill at low speed for a while
until the wood screw is partly driven into the wood,
squeeze the trigger more strongly to obtain the
optimum driving force.
CAUTION:
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.
8. How to use the drill bit (taper shank) and the taper
shank adapter
(1) Mount the taper shank adapter to the hammer drill.
(Fig. 18)
English
10

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