Hitachi DV 14DL Bedienungsanleitung Seite 15

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 8 should be
considered as general standard. As different types of
tightening screws and different 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 Li-ion 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.
7. Mounting and dismounting of the bit
(1) Mounting the bit
Loosen the sleeve by turning it toward the left (in the
counterclockwise direction as viewed from the front)
to open the clip on the keyless chuck. After inserting
a driver bit, etc., into the keyless drill chuck, and
tighten the sleeve by turning it toward the right (in
the clockwise direction as viewed from the front)
(See Fig. 10).
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
Loosen the sleeve by turning it toward the left (in the
counterclockwise direction as viewed from the front),
and then take out the bit, etc. (See Fig. 10).
NOTE
If the sleeve is tightened in a state where the clip of
the keyless chuck is opened to a maximum limit, a
click noise may occur. This is the noise that occurs
when the loosening of the keyless chuck is prevented
and is not a malfunction.
Table 8
Rotating speed selection (Position of the shift knob)
Cap Position
LOW (Low speed)
For 4 mm or smaller
1 – 22
diameter screws.
For 8 mm or smaller nominal
1 –
diameter screws.
For 14 mm or smaller
diameters. (DV14DL)
For 16 mm or smaller
diameters. (DV18DL)
For 45 mm or smaller
diameters. (DV14DL)
For 50 mm or smaller
diameters. (DV18DL)
For drilling with a metal
working drill bit.
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 7 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. Automatic spindle-lock mechanism
This unit has automatic spindle-lock mechanism for
quick bit changes.
9. Confirm that the battery is mounted correctly
10. 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. 11). (The
marks are provided on the selector button.)
CAUTION
Always use this unit with clockwise rotation, when
using it as an impact drill.
11. 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.
12. For drilling into brick
Excessive pressing force never increases drilling
speed. It will not only damage the drill tip or reduce
working efficiency, 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.
13. Using the hook
CAUTION
When using the hook, pay sufficient attention so that
the main equipment does not fall. If the tool falls,
there is a risk of accident.
English
HIGH (High speed)
For 6 mm or smaller
diameter screws.
For 4.8 mm or smaller
nominal diameter screws.
For 10 mm or smaller
diameters. (DV14DL)
For 12 mm or smaller
diameters. (DV18DL)
For 20 mm or smaller
diameters. (DV14DL)
For 22 mm or smaller
diameters. (DV18DL)
L and R
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