Hitachi DH 24PD2 Bedienungsanleitung Seite 12

English
1. Switch operation
The rotation speed of the drill bit can be controlled
steplessly by varying the amount that the trigger
switch is pulled. Speed is low when the trigger switch
is pulled slightly and increases as the switch is pulled
more. Continuous operation may be attained by
pulling the trigger switch and depressing the stopper.
To turn the switch OFF, pull the trigger switch again
to disengage the stopper, and release the trigger
switch to its original position.
2. Rotation + hammering
This rotary hammer can be set to rotation and
hammering mode by pressing the push button and
turning the change lever to the
(1) Mount the drill bit.
(2) Pull the trigger switch after applying the drill bit tip to
the drilling position (Fig. 7).
(3) Pushing the rotary hammer forcibly is not necessary
at all. Pushing slightly so that drill dust comes out
gradually is sufficient.
CAUTION:
When the drill bit touches construction iron bar, the
bit will stop immediately and the rotary hammer will
react to revolve. Therefore grip the side handle and
handle tightly as shown in Fig. 7.
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. 8. The unit can be used as an ordinary rotary
hammer 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. 9). 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. 10).
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. 11).
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. 12).
b) Setting the hole-drilling depth.
Move the stopper to determine the stroke. The
stroke is the hole-drilling depth (see Fig. 12).
The maximum hole-drilling depth when using the
dust-collecting adapter is 100 mm.
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(3) Drilling holes
When drilling holes, secure the main unit so that the
end of the dust-collecting adapter contacts with the
concrete surface perfectly during drilling. Dust-
collecting effectiveness is reduced if the adapter is
not in contact with the surface (see Fig. 13).
(4) Removing dust
Excessive dust in the dust bag will reduce dust-
mark (Fig. 6). 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. 14).
4. When not using the dust-collecting adapter
When removing the dust-collecting adapter and the
dust bag to use as a normal rotary hammer, insert
the provided cap in the hose attachment hole. (see
Fig. 15). 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.
This rotary hammer can be set to rotation only mode
by pussing the push button and turning the change
lever to the
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. 17)
(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.
CAUTION:
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
rotary hammer in addition.
Drill bits 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 machine set in the rotation only
function.
Do not attempt to use the rotary hammer 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. 18)
First, insert the bit into the socket in the end of 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.
CAUTION:
Exercise care not to excessively prolong driving time,
otherwise, the screws may be damaged by excessive
force.
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.
mark (Fig. 16).