Hitachi DV 14DVA Manuel D'instructions page 16

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5. Confirm the cap position (see Fig. 9 and 10)
Triangle
mark
Fig. 9
Cap
Hammer mark
Triangle mark
Fig. 10
6. Tightening torque adjustment
(1) Tightening torque
Tightening torque should correspond in its intensity to the screw diameter. When too
strong power 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 (See Fig. 9)
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 – 5" on the cap. The
tightening torque at position "1" is the weakest and the torque is strongest at the highest
number.
(3) Adjusting the tightening torque (See Fig. 9)
Rotate the cap and line up the numbers "1 – 5" on the cap, 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:
The motor rotation may be locked to cease while the unit is used as drill. While operating
the hammer drill, take care not to lock the motor.
When setting the shift knob to "HIGH" (high speed) and the position of the cap is "4"
or "5", 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).
16
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The three modes of screwdriver, drill, and hammer
drill can be switched by the position of the cap in this
tool.
(1) When using this unit as a screwdriver, line up the one
of the numbers "1 – 5" on the cap, or the white dot,
with the triangle mark on the outer body.
(2) When using this unit as a drill, line up the cap drill mark
Cap
"
" with the triangle mark on the outer body.
(3) When using this unit as a hammer drill, line up the cap
hammer mark "
outer body.
CAUTION:
The cap cannot be set between the numerals "1 – 5".
Do not use with the cap drill mark and the point at the
middle of the hammer mark. Doing so may cause
damage.
To make holes in the metal, wood or plastic, switch
to "Rotation (Rotation only)", and holes in bricks or
concrete blocks, switch to "Impact (Impact + Rota-
tion)". If an operation which is normally performed at
the "Rotation" setting is performed at "Impact" set-
ting. the effect of marking holes does not only in-
crease but it may also damage the bit or other parts.
" with the triangle mark on the

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