Bedienungsanleitung Hitachi fdv16vb2 (Seite 22 von 29) (Englisch, Dänisch, Schwedisch, Norwegisch, Finnisch)

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8. Check the rotational direction (Fig. 4)

The bit rotates clockwise (viewed from the rear

side) by pushing the R-side of the push button.

The L-side of the push button is pushed to turn the

bit counterclockwise.

(The

and

marks are provided on the body.)

CAUTION

⅜ Never change the direction of bit rotation during

operation.

Turn the power switch OFF before changing the

direction of bit rotation; otherwise, the motor will

burn.

⅜ Always use with clockwise rotation, when using it

as an impact drill.

9. IMPACT to ROTATION changeover (Fig. 5)

The impact drill can be switched from IMPACT

(impact plus rotation) to ROTATION (rotation only)

by simply sliding the change lever. When boring

concrete, stone, tile or similar board materials, slide

the change lever right. The drill head impacts against

the material while continuing to rotate.

When boring metal, wood or plastic, slide the change

lever fully to the left. The drill simply rotates as

an ordinary electric drill.

CAUTION

Do not use the impact drill in the IMPACT mode

if the material can be bored by rotation only. Such

action will not only reduce drill efficiency, but may

also damage the drill tip.

When changing over, ensure the change lever is

slid as far as it will go.

HOW TO USE

1. Pressure

Drilling will NOT be accelerated by placing heavy

pressure on the drill. Such action will only result

in a damaged drill bit, decreased drilling efficiency

and/or shortened service life of the drill.

2. Using a large diameter drill bit

The larger the drill bit diameter, the larger the

reactive force on your arm. Be careful not to lose

control of the drill because of this reactive force.

To maintain firm control, establish a good foothold,

hold the drill tightly with both hands, and ensure

that the drill is vertical to the material being drilled.

3. When drilling completely through the material

When the drill bit bores completely through the

material, careless handling often results in a broken,

drill bit or damage to the drill body itself due to

the sudden movement of the drill. Always be alert

and ready to release pushing force when drilling

through the material.

4. Switch operation

⅜ When the trigger is depressed, the tool rotates.

When the trigger is released, the tool stops.

⅜ 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.

⅜ The desired rotation speed can be pre-selected with

the speed control dial.

Turn the speed control dial clockwise for higher

speed and counterclockwise for lower speed

(Fig. 6).

⅜ Pulling the trigger and pushing the stopper, it keeps

the switched-on condition which is convenient for

continuous running. When switching off, the stopper

can be disconnected by pulling the trigger again.

CAUTION

Drill at a maximum rotation speed when drilling

wooden materials.

5. When driving wood screws

(1) Selecting a suitable driver bit

Employ plus-head screws, if possible, since the

driver bit easily slips off the heads of minus-head

screws.

(2) Driving in wood screws

⅜ Prior to driving in wood screws, make holes suitable

for them on the wooden board. Apply the bit to

the screw head grooves and gently drive the screws

into the holes.

⅜ After rotating the screwdriver at low speed for a

while until a wood screw is partly driven into the

wood, squeeze the trigger more strongly to obtain

optimum driving force.

CAUTION

⅜ Exercise care in preparing a hole suitable for the

wood screws taking the hardness of the wood into

consideration.

Should the hole be excessively small or shallow,

requiring much power to drive the screw into it,

the thread of the wood screw may sometimes be

damaged.

⅜ Do not drive machine screws.

MAINTENANCE AND INSPECTION

1. Inspection the drill bit

Continued use of a worn and/or damaged drill bit

will result in reduced drilling efficiency and may

seriously overload the drill motor. Inspect the drill

bit often and replace it with a new bit as necessary.

2. Inspecting the mounting screws

Regularly inspect all mounting screws and ensure

that they are properly tightened. Should any of the

screws be loose, retighten them immediately. Failure

to do so could result in serious hazard.

3. Maintenance of the motor

The motor unit winding is very “heart” of the power

tool. Exercise due care to ensure the winding does

not become damaged and/or wet oil or water.

4. Servicing

Consult an authorized Service Center in the event

of power tool failure.

5. Service parts list

A: Item No.

B: Code No.

C: No. Used

D: Remarks

CAUTION

Repair, modification and inspection of Hitachi Power

Tools must be carried out by a Hitachi Authorized

Service Center.

This Parts List will be helpful it presented with the

tool to the Hitachi Authorized Serivde Center when

requesting repair or other maintenance.

In the operation and maintenance of power tools,

the safety regulations and standards prescribed in

each country must be observed.

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