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Hitachi DS 9 DVF 2 Manual

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6
English
HOW TO USE
1. Confirm the cap position (See Fig. 4)
The tighthening torque of this unit can be adjusted
according to the cap position, at which the cap is
set.
(1) When using this unit as a screwdriver, line up the
one of the numbers “1, 3, 5 … 22” on the cap, or
the black 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.
CAUTION:
⅜ The cap cannot be set between the numbers “1,
3, 5 … 22” or the black dots.
⅜ Do not use with the cap set at the black line between
numbers “22” and 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 damaged.
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.
The unit indicates the tightening torque with the
numbers “1, 3, 5 … 22” on the cap, and the black
dots. The tightening torque 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 align the numbers “1, 3, 5 …
22” on the cap, or the black 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.
CAUTION:
⅜ The motor rotation may be locked to cease while
the unit is used as a drill. While operating the driver
drill, take care not to lock the motor.
⅜ Too long hammering may cause the screw broken
due to excessive tightening force.
3. Change rotation speed
Operate the shift knob to change the rotation 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:
⅜ When changing the rotation speed with the shift
knob, confirm that the switch is off.
Changing the speed while the motor is rotating will
damage the gears.
⅜ When setting the shift knob to “HIGH” (high speed)
and the position of the cap is “17” to “22”, it may
happen that the clutch does not engage and that
the motor is locked. In such a case, please set the
shift knob to “LOW” (low speed).
BATTERY REMOVAL/INSTALLATION
1. Battery removal
Hold the handle tightly and push the battery latch
(1 pc. or 2 pcs.) to remove the battery. (See Figs.
1 and 2)
CAUTION:
Never short-circuit the battery.
2. Battery installation
Insert the battery while observing its direction. (See
Fig. 2)
CHARGING
Before using the driver drill, charge the battery as
follows.
1. Insert the battery into the charger.
Insert the battery firmly while observing its direction,
until it contacts the bottom of the charger. (See
Figs. 1 and 3)
CAUTION:
The UC9SD, UC12SD and UC14SD models are
the exclusively designed chargers. These cannot
charge batteries except the specified batteries.
It is possible to insert the batteries other than
the specified into the chargers and some of
them may light up the pilot lamps. However,
you are requested to exercise utmost caution
not to charge batteries other than specified ones
because these can not only be charged but also
such actions can result in the malfuntion of
chargers.
2. Connect the charger power cord to the receptacle.
Connecting the power cord will turn on the charger
(the pilot lamp lights up).
CAUTION:
If the pilot lamp does not light up, pull out the
power cord from the receptacle and check the
battery mounting condition.
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 battery 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.
… 7 …


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