Hitachi DV 14DBEL Bedienungsanleitung Seite 15

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.
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.
Work
Brick
Wood
Drilling
Steel
Aluminum
Machine screw
Driving
Wood screw
6. How to select tightening torque and rotational speed
Use
Machine screw
Driving
Wood screw
Brick
Drilling
Wood
Metal
CAUTION
○ The selection examples shown in Table 5 should be
considered as general standard. As diff erent types of
tightening screws and diff erent materials to be tightened
are used in actual works proper adjustments are naturally
necessary.
○ When using the impact driver drill with a machine screw
at HIGH (high speed), a screw may damage or a bit may
loose due to the tightening torque is too strong. Use the
driver drill at LOW (low speed) when using a machine
screw.
NOTE
○ The use of the battery in a cold condition (below 0 degree
Centigrade) can sometimes result in the weakened
tightening torque and reduced amount of work. This,
however, is a temporary phenomenon, and returns to
normal when the battery warms up.
Table 4
Clutch dial position
1 – 22
1 –
Table 5
Clutch Dial
Position
LOW (Low speed)
For 4 mm or smaller diameter
1 – 22
screws.
For 8 mm or smaller nominal
1 –
diameter screws.
For 13 mm or smaller diameters.
(DV14DBEL)
For 13 mm or smaller diameters.
(DV18DBEL)
For 36 mm or smaller diameters.
(DV14DBEL)
For 38 mm or smaller diameters.
(DV18DBEL)
For drilling with a metal working
drill bit.
○ When setting the shift knob to "HIGH" (high speed)
and the position of the clutch dial is "17" or "22", it may
happen that the clutch is 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.
Be sure to turn the shift knob.
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.
Use for drilling purpose.
Use the bit or socket matching the screw diameter.
Use after drilling a pilot hole.
Rotating speed selection (Position of the shift knob)
○ When using the unit as an impact drill, prolonged
operation of 5 minutes or more will result in internal heat
which may cause a repeated noise other than the sound
normally emitted by the motor. This does not indicate a
malfunction.
Discontinuing use of the unit and allowing its internal
temperature to cool down will eliminate the noise.
For prolonged use, allow the unit to cool down
periodically.
7. Using the hook
The hook is used to hang up the power tool to your waist
belt while working.
English
Suggestions
HIGH (High speed)
For 6 mm or smaller diameter
screws.
For 3.8 mm or smaller nominal
diameter screws.
For 10 mm or smaller diameters.
(DV14DBEL)
For 10 mm or smaller diameters.
(DV18DBEL)
For 18 mm or smaller diameters.
(DV14DBEL)
For 22 mm or smaller diameters.
(DV18DBEL)
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