Bedienungsanleitung Hitachi dv 10 dva (Seite 29 von 32) (Englisch, Dänisch, Schwedisch, Norwegisch, Finnisch)

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mark " " or the hammer mark" " to the triangle

mark of the housing.

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

Operate the shift knob to change the rotational

speed. Move the shift knob in the direction of the

arrow (see Figs. 5 and 6).

When the shift knob is set to “L”, the drill rotates

at a low speed. When set to “H”, the drill rotates

at a high speed.

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 “H” (high speed) and

the position of the cap is “4” or “5”, 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 “L” (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.

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

CAUTION

Align the number and mark on the cap to the

triangle mark of the housing. The middle point of

the numbers and marks on the cap cannot be

secured.

2. Tightening torque adjustment

(1) Tightening torque

Tightening torque should correspond in its intensity

to the screw diameter. When too strong power 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

Tightening torque should be changed according to

the screw type and the materials to be tightened.

Guidance of the tightening torque is indicated on

the cap of this unit with numerals “1”, “2”, “3”,

“4” and “5”. The minimum power is from “1”

position and bigger the value the stronger is the

power (see Fig. 4).

(3) How to adjust the tightening torque

Rotate the cap and set to one of the numerals.

Adjust the torque by cap rotation in such a way that

when the torque is too strong, set to the next

smaller numeral and set to the next larger numeral

when too weak.

CAUTIONS

⅜ The motor rotation may be locked to cease while

the unit is used as drill. While operating the impact

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. 4.).

The "Rotation (Rotation only)" and "Impact (Impact

+ Rotation)" can be switched by aligning the drill

Work Usable range Suggestions

Drilling

Brick: 10 mm

Use for drilling purpose.

Wood: 18 mm

Steel: 10 mm

Aluminum: 10 mm

Driving

Machine screw: 6 mm

Use the bit and socket matching the

screw diameter.

Nut: 5 mm

Wood screw: 5.1 mm (diameter) x 32 mm (length) Use after drilling a pilot hole.

6. How to select tightening power and rotational speed

Table 2

Use Cap Position

Rotating speed selection (Position of the shift knob)

L (Low speed) H (High speed)

Driving

Machine screw 1 – 5

or 4 mm or sma

ameter

screws.

or 5 mm or

arger

diameter screws.

Wood screw 1 – 5 For 3.5 mm or smaller nominal

diameter screws.

For 3.8 mm or larger

nominal diameter screws.

Drilling

Brick ––––––

illi

ng w

working drill.

Wood For 10 mm or larger diameters.

or 10 mm or sma

diameters.

Metal

illi

ng w

ron

working drill.

––––––

For drilling with a carbide

tipped drill bit.

For drilling with a metal

working drill bit.

CAUTION

⅜ The selection examples shown in Table 2 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.

Table 1

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