Prior To Operation; How To Use - Hitachi DV 12DV Mode D'emploi

English
About 1 hour is required to fully charge the battery
at a temperature of about 20°C. The pilot lamp goes
off to indicate that the batterry is fully charged.
The battery charging time becomes longer when a
temperature is low or the voltage of the power
source is too low.
When the pilot lamp does not go off even if more
than two hours have elapsed after starting of the
charging, stop the charging and contact your
HITACHI AUTHORIZED SERVICE CENTER.
CAUTION
If the battery is heated due to direct sunlight, etc.,
just after operation, the charger pilot lamp may
not light up. At that time cool the battery first,
then start charging.
3. Disconnect the charger power cord from the
receptacle.
4. Hold the charger tight and pull out the battery.

PRIOR TO OPERATION

1. Setting up and checking the work environment
Check if the work environment is suitable by
following the precautions.

HOW TO USE

1. Confirm the cap position (see Fig. 4)
The three modes of screwdriver, drill and impact
drill can be switched by the position of the cap in
this unit.
(1) When using this unit as a screwdriver, line up the
one of the numbers "1, 3, 5 ... 22" on the cap, or
the white dots, with the triangle mark on the outer
body.
(2) When using this unit as a drill, align the cap drill
mark " " with the triangle mark on the outer
body.
(3) When using this unit as an impact drill, align the
cap hammer mark " " with the triangle mark on
the outer body.
CAUTIONS
The cap cannot be set between the numerals "1,
3, 5 ... 22" or the white dots.
Do not use with the cap numeral between "22" and
the white line at the middle of the drill mark. Doing
so may cause damage. (See Fig. 5)
2. Tightening torque adjustment
(1) Tightening torque
Tightening torque should correspond in its intensity
to the screw diameter. When too strong torque is
used, the screw head may be broken or be injured.
Be sure to adjust the cap position according to the
screw diameter.
(2) Tightening torque indication
The tightening torque differs depending on the type
of screw and the material being tightened.
Work
Brick
Wood
Drilling
Steel
Aluminum
Machine screw
Driving
Wood screw
7
The unit indicates the tightening torque with the
numbers "1, 3, 5 ... 22" on the cap, and a white
dots. The tightening toque at position "1" is the
weakest and the torque is strongest at the highest
number. (See Fig. 4)
(3) Adjusting the tightening torque
Rotate the cap and line up the numbers "1, 3, 5,
... 22" on the cap, or the white dots, with the
triangle mark on the outer body. Adjust the cap in
the weak or the strong torque direction according
to the torque you need.
CAUTIONS
The motor rotation may be locked to cease while
the unit is used as drill. While operating the impact
drill, take care not to lock the motor.
Too long hammering may cause the screw broken
due to excessive tightening.
3. Rotation to Impact changeover (See Fig. 4)
The "Rotation (Rotation only)" and "Impact (Impact
+ Rotation)" can be switched by aligning the drill
mark "
triangle mark on the outer body.
To make holes in the metal, wood or plastic, switch
to "Rotation (Rotation only)".
To make holes in bricks or concrete blocks, switch
to "Impact (Impact + Rotation)".
CAUTION
If an operation which is normally performed at the
"Rotation" setting is performed at "Impact " setting,
the effect of making holes does not only increase
but it may also damage the bit or other parts.
4. Change rotation speed
Operate the shift knob to change the rotational
speed. Move the shift knob in the direction of the
arrow (see Figs. 6 and 7).
When the shift knob is set to "LOW", the drill
rotates at a low speed. When set to "HIGH", the
drill rotates at a high speed.
CAUTION
When changing the rotational speed with the shift
knob, confirm that the switch is off.
Changing the speed while the motor is rotating will
damage the gears.
When setting the shift knob to "HIGH" (high speed)
and the position of the cap is "17" or "22", it may
happen that the clutch does not engaged and that
the motor is locked. In such a case, please set the
shift knob to "LOW" (low speed).
If the motor is locked, immediately turn the power
off. If the motor is locked for a while, the motor
or battery may be burnt.
5. The scope and suggestions for uses
The usable scope for various types of work based
on the mechanical structure of this unit is shown
in Table.1.
Table 1
Use for drilling purpose.
Use the bit and socket matching the screw diameter.
Use after drilling a pilot hole.
" or the hammer mark " " with the
Suggestions