Hitachi DS12DVB2 [14/96] English
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Hitachi DS12DVB2 [14/96] English

Hitachi DS12DVB2 [14/96] English
English
13
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after
use. If such a battery is recharged immediately after
use, its internal chemical substance will deteriorate,
and the battery life will be shortened. Leave the
battery and recharge it after it has cooled for a while.
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. 6)
The tightening 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 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.
CAUTION:
䡬 The cap cannot be set between the numerals “1,
3, 5 ... 22” or the white dots.
䡬 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. 7).
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.
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. 6).
(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.
CAUTION:
䡬 The motor rotation may be locked to cease while
the unit is used as drill. While operating the driver
drill, take care not to lock the motor.
䡬 Too long hammering may cause the screw broken
due to excessive tightening.
3. Change rotation speed
Operate the shift knob to change the rotational
speed. Move the shift knob in the direction of the
arrow (see Figs. 8 and 9).
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:
䡬 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.
䡬 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).
䡬 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.
4. 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 6.
Work Suggestions
Wood
Drilling Steel Use for drilling purpose.
Aluminum
Machine screw Use the bit or socket matching the screw diameter.
Driving
Wood screw Use after drilling a pilot hole.
Table 6
01Eng_DS9DVB2_EE 08/4/16, 17:3213

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English 2 Avoid recharging at high temperatures A rechargeable battery will be hot immediately after use If such a battery is recharged immediately after use its internal chemical substance will deteriorate and the battery life will be shortened Leave the battery and recharge it after it has cooled for a while 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 6 The tightening 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 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 CAUTION O The cap cannot be set between the numerals 1 3 5 22 or the white dots O 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 7 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 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 6 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 CAUTION O The motor rotation may be locked to cease while the unit is used as drill While operating the driver drill take care not to lock the motor O Too long hammering may cause the screw broken due to excessive tightening 3 Change rotation speed Operate the shift knob to change the rotational speed Move the shift knob in the direction of the arrow see Figs 8 and 9 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 O 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 O 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 O 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 4 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 6 Table 6 Work Suggestions Wood Drilling Steel Use for drilling purpose Aluminum Driving 13 Machine screw Use the bit or socket matching the screw diameter Wood screw Use after drilling a pilot hole

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