Manual Hitachi DV 18 DL (page 14 of 104) (German, Dutch, French, Italian, Portuguese, Spanish)

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English

CAUTION

⅜ The cap cannot be set between the numerals “1, 4, 7

... 22” or the black dots.

⅜ Do not use with the cap numeral between “22” and

the black 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 cap position according to the

screw diameter.

(2) Tightening torque indication

The tightening torque differs depending on the type

of screw and the material being tightened.

The unit indicates the tightening torque with the

numbers “1, 4, 7 ... 22” on the cap, and the black

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 cap and line up the numbers “1, 4, 7 ... 22”

on the cap, or the black dots, with the triangle mark on

the outer body. Adjust the cap in the weak or the strong

torque direction according to the torque you need.

CAUTION

⅜ 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.

⅜ 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 “ ” with the triangle

mark on the outer body.

⅜ To make holes in the metal, wood or plastic, switch

to “Rotation (Rotation only)”.

⅜ To make holes in bricks or concrete blocks, switch to

“Impact (Impact + Rotation)”.

CAUTION

If an operation which is normally performed at the

“Rotation” setting is performed at “Impact “ setting,

the effect of making holes does not only increase but

it may also damage the bit or other parts.

4. Change rotation speed

By making a combination of the switch-over of “HIGH”

or “LOW” with the shift knob and the switch-over of

Power mode (P) or Save mode (S) with the lever on

the side of the handle, the rotational speed can be set

to four (4) steps. (See “SPECIFICATIONS”.)

⅜ How to switch over “HIGH” or “LOW”

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.

⅜ How to switch over the Power mode (P) or Save

mode (S)

To set to the Power mode (P), slide the lever on the

side of handle to the lower side, and to set to the Save

mode (S), slide the lever to the upper side. (Fig. 9)

CAUTION

⅜ When changing the rotational speed with the shift

knob, confirm that the switch is off.

Changing the speed while the motor is rotating will

damage the gears.

⅜ 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).

⅜ 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.

⅜ In the work of the save mode (S), avoid the continuous

screw-tightening as temperature of electronic

components of the converter switch increases.

⅜ 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 7.

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 7

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Hitachi DV 18 DL Manual

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