How To Use - Hitachi Koki DH 24PD3 Bedienungsanleitung

(1) Clean the shank portion of the drill bit.
(2) Insert the drill bit in a twisting manner into the tool
holder until it latches itself. (Fig. 1)
(3) Check the latching by pulling on the drill bit.
(4) To remove the drill bit, fully pull the grip in the
direction of the arrow and pull out the drill bit. (Fig. 2)
5. Installation of dust cup or dust collector (B)
(Optional accessories) (Fig. 3, Fig. 4)
When using a rotary hammer for upward drilling
operations attach a dust cup or dust collector (B) to
collect dust or particles for easy operation.
Installing the dust cup
Use the dust cup by attaching to the drill bit as shown
in Fig. 3.
When using a bit which has big diameter, enlarge the
center hole of the dust cup with this rotary hammer.
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:
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.
Insert dust collector (B) completely into the chuck
part of the main unit.
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 the
dust cup on the concrete surface. (When using dust
collector (B) attached to a drill bit that has more than
190 mm of overall length, dust collector (B) cannot
touch the concrete surface and will rotate. Therefore
please use dust collector (B) by attaching to drill bits
which have 166 mm, 160 mm, and 110 mm overall
length.)
Dump particles after every two or three holes when
drilling.
Please replace the drill bit after removing dust
collector (B).
6. Selecting the driver bit
Screw heads or bits will be damaged unless a bit
appropriate for the screw diameter is employed to
drive in the screws.
7. Confirm the direction of bit rotation (Fig. 5)
The bit rotates clockwise (viewed from the rear side)
by pushing the R-side of the push button. The L-side
of the push button is pushed to turn the bit
counterclockwise.

HOW TO USE

CAUTION:
To prevent accidents, make sure to turn the switch
off and disconnect the plug from the receptacle when
the drill pits and other various parts are installed or
removed. The power switch should also be turned
off during a work break and after work.
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.
However, the switch trigger can only be pulled in
halfway during reverse and rotates at half the speed
of forward operation.
The switch stopper is unusable during reverse.
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.
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.
English
mark. (Fig. 6)
12