Prior To Operation; How To Use - Hitachi DH 30PC2 Handling Instructions Manual

APPLICATIONS
Rotation and hammering function
Drilling anchor holes
Drilling holes in concrete
Drilling holes in tile
Rotation only function
Drilling in steel or wood
(with optional accessories)
Tightening machine screws, wood screws
(with optional accessories)
Hammering only function
Light-duty chiselling of concrete, groove digging
and edging

PRIOR TO OPERATION

1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position. If
the plug is connected to a receptacle while the power
switch is in the ON position, the power tool will start
operating immediately, which could cause a serious
accident.
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be kept
as short as practicable.
4. Mounting the drill bit (Fig. 1)
CAUTION
To prevent accidents, make sure to turn the switch off
and disconnect the plug from the receptacle.
NOTE
When using tools such as bull points, drill bits, etc.,
make sure to use the genuine parts designated by our
company.
(1) Clean the shank portion of the drill bit.
(2) To attach a drill bit (SDS-plus shank), fully pull the
grip in the direction of the arrow as shown in Fig.
1 and insert the drill bit as far as it will go while
manually turning.
(3) By releasing the grip, the drill bit will be secured.
(4) To remove the drill bit, fully pull the grip in the
direction of the arrow and pull out the drill bit.
5. Installation of dust cup (Optional accessories) (Fig. 2)
When using a rotary hammer for upward drilling
operations attach a dust cup 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. 2.
When using a bit which has big diameter, enlarge the
center hole of the dust cup with this rotary hammer.
CAUTION
The dust cup is for exclusive use of concrete drilling
work. Do not use them for wood or metal drilling work.
Dump particles after every two or three holes when
drilling.
6. Selecting the driver bit
Screw heads or bits will be damaged should an
inappropriate bit for the screw diameter be employed
to drive in the screws.
7. Selecting the function mode
You can switch functions to the 3 modes of
"hammering only, "rotation + hammering", and
"rotation only" by turning the change lever while
pressing the push button. Set the ▲ mark position
of the change lever to that of the mode to be used.
CAUTION:
Before operating the change lever, check and make
sure that the motor has stopped.
A failure can occur if it is operated while the motor
is running.
To operate the change lever, press the push button,
and release the lock of the change lever. Also, check
and make sure after operation that the push button
has returned and that the change lever has been
locked.
Switch the change lever without mistake. If it is
used at a position halfway, there is a fear that the
service life of the switching mechanism may be
shortened.

HOW TO USE

CAUTION
To prevent accidents, make sure to turn the switch off and
disconnect the plug from the receptacle when the drill bits
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.
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
Turn the grip slightly and confirm that the clutch has
been engaged with a click.
(1) Mount the drill bit.
(2) Pull the trigger switch after applying the drill bit tip to
the drilling position (Fig. 4).
(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. 4.
3. Rotation only
This rotary hammer can be set to rotation only mode
by pressing the push button and turning the change
lever to the mark (Fig. 5).
Turn the grip slightly and confirm that the clutch has
been engaged with a click.
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. 6)
English
mark (Fig. 3).
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