Hitachi Koki DV 14DSFL Instrucciones De Manejo página 11

CAUTION
○ The clutch dial cannot be set between the numerals "1, 3,
5 ... 22" or the dots.
○ Do not use with the clutch dial numeral between "22"
and the line at the middle of the drill mark. Doing so may
cause damage (See Fig. 6).
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 diff ers 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. 5).
(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
○ 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.
○ Too long hammering may cause the screw broken due to
excessive tightening.
3. Rotation to Impact changeover (See Fig. 5)
The "Rotation (Rotation only)" and "Impact (Impact +
Rotation)" can be switched by aligning the drill mark "
or the hammer mark "
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)".
Work
Brick
Wood
Drilling
Steel
Aluminum
Machine screw
Driving
Wood screw
" with the triangle mark on the
Clutch dial position
1 – 22
1 –
CAUTION
○ If an operation which is normally performed at the
"Rotation" setting is performed at "Impact" setting, the
eff ect of making holes does not only increase but it may
also damage the bit or other parts.
○ 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 "
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. 7 and 8).
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,
confi rm 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 clutch dial is between "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).
○ 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.
○ 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
Use for drilling purpose.
Use the bit or socket matching the screw diameter.
Use after drilling a pilot hole.
English
" position
Suggestions
11