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Hitachi DV14DVF Manual

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12
6. How to select tightening torque and rotational speed
Table 4
Use
Clutch Dial
Position
Rotating speed selection (Position of the shift knob)
LOW (Low speed) HIGH (High speed)
Driving
Machine screw 1 – 22
For 6 mm or smaller diameter
screws.
For 6 mm or smaller diameter
screws.
Wood screw
1 –
For 6 mm or smaller nominal
diameter screws.
For 3.8 mm or smaller nominal
diameter screws.
Drilling
Brick
For 13 mm or smaller diameters.
For 8 mm or smaller diameters.
(DV14DVF)
For 10 mm or smaller diameters.
(DV18DVF)
Wood
For 32 mm or smaller diameters.
(DV14DVF)
For 18 mm or smaller diameters.
(DV14DVF)
For 38 mm or smaller diameters.
(DV18DVF)
For 22 mm or smaller diameters.
(DV18DVF)
Metal
For drilling with a metal working drill
bit.
CAUTION
○ The selection examples shown in Table 4 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 tightning torque is too strong. Use the
impact driver drill at LOW (low speed) when using a
machine screw.
NOTE
The use of the battery EB1414S, EB1814SL, BCC1412
and BCC1812 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.
7. Mounting and dismounting of the bit
(1) After inserting a driver bit, etc. into the keyless drill chuck,
fi rmly grasp the
ring and tighten the sleeve by turning it
toward the right (in the clockwise direction as viewed
from the front) (See Fig. 8).
○ If the sleeve becomes loose during operation, tighten it
further. The tightening force becomes stronger when the
sleeve is tightened additionally.
(2) Dismounting the bit
Firmly grasp
the ring and loosen the sleeve by turning
it toward the left (in the counter-clockwise direction as
viewed from the front) (See Fig. 8).
CAUTION
When it is no longer possible to loosen the sleeve, use a
vise or similar instrument to secure the bit. Set the clutch
mode between 1
and 11 and then turn the sleeve to the
loose side (left side) while operating the clutch. It should
be easy now to loosen the sleeve.
8. Confi rm that the battery is mounted correctly
9. Check the rotational direction
The bit rotates clockwise (viewed from the rear side) by
pushing
the R-side of the selector button.
The L-side of the selector button is pushed to turn the
bit counterclockwise (See Fig. 9) (The
and marks
are provided on the body).
CAUTION
Always use this unit with clockwise rotation, when using it
as an impact drill.
10. Switch operation
○ When the trigger switch is depressed, the tool rotates.
When the trigger is released, the tool stops.
○ The rotational speed of the drill can be controlled by
varying the amount that the trigger switch is pulled.
Speed is low when the trigger switch is pulled slightly and
increases as the trigger switch is pulled more.
NOTE
A buzzing noise is produced when the motor is about to
rotate; This is only a noise, not a machine failure.
11. For
drilling into brick
Excessive pressing force never increases drilling speed.
It will not only damage the drill tip or reduce working
effi ciency, but could also shorten the service life of
drill bit. Operate the impact driver drill within 10-15 kg
pressing force while drilling into brick.
12. Using the
bit holder
CAUTION
○ Stow the bit in the specifi ed location on the tool. If the tool
is used with the bit stowed improperly, the bit may fall and
cause bodily injury.
○ Do not stow bits that are of a diff erent length, gauge or
dimension than the plus driver
bit (65 mm long) included
in the STANDARD ACCESSORIES.
The bit may fall and cause bodily injury.
(1) Removing the bit
Securely hold the main unit and pull out the bit by holding
the tip with your thumb (Fig. 10).
(2) Installing the Bit
Install the bit with steps opposite of
when removing.
Insert the bit so that the right and left sides are equal, as
shown in Fig. 11
13. Using the hook
CAUTION
○ When using the hook, pay suffi cient attention so that the
main equipment does not fall. If the tool falls, there is a
risk of accident.
○
Do not attach the tip tool except phillips bit to the tool
main unit when carrying the tool main unit with the hook
suspended from a waist belt.
Injury may result if you carry the equipment suspended
from the waist belt with sharp tipped components such
as drill bit attached.
The
hook can be installed on the right or left side and the
angle can be adjusted in 5 steps between 0° and 80°.
000Book_DV14DVF_Tha.indb 12000Book_DV14DVF_Tha.indb 12 2010/04/06 17:39:082010/04/06 17:39:08
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