Hitachi DV18DCL2 [12/92] English
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Hitachi DV18DCL2 [12/92] English

Hitachi DV18DCL2 LiION [12/92] English
English
11
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 clutch dial 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 clutch dial, and a
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 clutch dial and line up the numbers “1,
3, 5 ... 22” on the clutch dial, or the dots, with the
triangle mark on the outer body. Adjust the clutch
dial 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 impact
driver drill, take care not to lock the motor.
䡬 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 “
” or the hammer mark “ ” with the
triangle mark on the outer body.
䡬 To make holes in the metal, wood or plastic, switch
to “Rotation (Rotation only)”.
䡬 To make holes in bricks or concrete blocks, switch
to “Impact (Impact + Rotation)”.
Table 4
CAUTION
䡬 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.
䡬 If it is hard to turn the clutch dial to hammer mark
“
” position, turn the chuck slightly in either
direction and then turn the clutch dial to hammer
mark “
” position again.
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
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 clutch dial is bitween “15”
and “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.
䡬 To extend the lifetime, the lithium-ion battery equips
with the protection function to stop the output.
Therefore, if the tool is overloaded, the motor may
stop. However, this is not the trouble but the result
of protection function. In this case, release the switch
of tool and eliminate the causes of overloading.
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 4.
Work Suggestions
Brick
Wood
Steel
Aluminum
Machine screw Use the bit or socket matching the screw diameter.
Driving
Wood screw Use after drilling a pilot hole.
Drilling Use for drilling purpose.Steel
01Eng_DV14DCL2_EE 12/4/09, 4:2311

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English 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 clutch dial 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 clutch dial and a 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 clutch dial and line up the numbers 1 3 5 22 on the clutch dial or the dots with the triangle mark on the outer body Adjust the clutch dial 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 impact driver drill take care not to lock the motor O 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 or the hammer mark T with the triangle mark on the outer body O To make holes in the metal wood or plastic switch to Rotation Rotation only O To make holes in bricks or concrete blocks switch to Impact Impact Rotation CAUTION O 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 O If it is hard to turn the clutch dial to hammer mark T position turn the chuck slightly in either direction and then turn the clutch dial to hammer mark T position again 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 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 clutch dial is bitween 15 and 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 O To extend the lifetime the lithium ion battery equips with the protection function to stop the output Therefore if the tool is overloaded the motor may stop However this is not the trouble but the result of protection function In this case release the switch of tool and eliminate the causes of overloading 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 4 Table 4 Work Suggestions Brick Drilling Wood Use for drilling purpose Steel Steel Aluminum Driving 11 Machine screw Use the bit or socket matching the screw diameter Wood screw Use after drilling a pilot hole

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