Hitachi DV14DJL-RF - Инструкция по эксплуатации - Страница 12

English

11

CAUTION

䡬

The selection examples shown in 

Table 5

 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.

䡬

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 BCL1430, EBL1430,EBM1430
and EBM1830 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. 9

).

䡬

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. 9

).

Work

Suggestions

Brick

Drilling

Wood

Use for drilling purpose.

Steel

Aluminum

Machine screw

Use the bit or socket matching the screw diameter.

Driving

Wood screw

Use after drilling a pilot hole.

Table 4

䡬

When setting the shift knob to “HIGH” (high speed)
and the position of the cap is bitween “16” 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).

䡬

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.

䡬

In the work of the save mode (S), avoid the continuous
screw-tightening as temperature of electronic
components of the converter switch increases.

䡬

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 5

Use

Cap Position

Rotating speed selection (Position of the shift knob)

LOW (Low speed)

HIGH (High speed)

Machine screw

1 – 22

For 4 mm or smaller
diameter screws.

Driving

Wood screw

1 – 

For 8 mm or smaller nominal
diameter screws.

Brick

For 14 mm or smaller
diameters. (DV14DL)
For 16 mm or smaller
diameters. (DV18DL)

Drilling

Wood

For 45 mm or smaller
diameters. (DV14DL)
For 50 mm or smaller
diameters. (DV18DL)

Metal

For drilling with a metal
working drill bit.

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)

6. How to select tightening torque and rotational speed.