Manual Bosch UniversalImpact 18 (page 14 of 181) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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14 | English

u Wear protective gloves when changing tools. There is

a risk of injury when touching the application tools.

The drill spindle is locked when the on/off switch (9) is not

pressed. This makes it possible to change the application

tool in the drill chuck quickly, conveniently and easily.

Open the keyless chuck (2) by turning it in the direction of

rotation ➊ until the tool can be inserted. Insert the tool.

Firmly tighten the sleeve of the keyless chuck (2) by turning

it by hand in the rotational direction ➋ until it stops clicking.

This will automatically lock the drill chuck.

Dust/Chip Extraction

Dust from materials such as lead-containing coatings, some

wood types, minerals and metal can be harmful to one’s

health. Touching or breathing-in the dust can cause allergic

reactions and/or lead to respiratory infections of the user or

bystanders.

Certain dust, such as oak or beech dust, is considered carci-

nogenic, especially in connection with wood-treatment ad-

ditives (chromate, wood preservative). Materials containing

asbestos may only be worked by specialists.

– Provide for good ventilation of the working place.

– It is recommended to wear a P2 filter-class respirator.

Observe the relevant regulations in your country for the ma-

terials to be worked.

u Avoid dust accumulation at the workplace. Dust can

easily ignite.

Operation

Starting Operation

Inserting the battery

Note: The use of batteries unsuitable for your power tool can

lead to malfunctions or damage to the power tool.

Set the rotational direction switch (8) to the middle position

to avoid unintentionally switching it on. Insert the charged

battery (7) into the handle until you feel it engage and it is

flush with the handle.

Setting the rotational direction (see figureB)

The rotational direction switch (8) is used to change the ro-

tational direction of the power tool. However, this is not pos-

sible while the on/off switch (9) is being pressed.

Right rotation: To drill and to drive in screws, press the ro-

tational direction switch (8) through to the left stop.

Left Rotation: To loosen and unscrew screws and nuts,

press the rotational direction switch (8) through to the right

stop.

Switching on/off

To start the power tool, press and hold the on/off switch

(9).

To switch off the power tool, release the on/off switch (9).

Adjusting the Speed

You can adjust the speed of the power tool when it is on by

pressing in the on/off switch (9) to varying extents.

A light pressure on the on/off switch (9) results in a low rota-

tional speed. Increased pressure on the switch causes an in-

crease in speed.

Preselecting the torque

The torque presetting ring (3) can be used to preselect the

required torque in 19 stages and "MAX". Once the set torque

has been reached, the application tool will be stopped.

Mechanical Gear Selection

u You can press the gear selector switch (5) with the

power tool off or on. You should not do this at full load

or maximum torque, however.

Gear I:

Low speed range; for working with a large drilling diameter

or for screwdriving.

Gear II:

High speed range; for working with a small drilling diameter.

Setting the Operating Mode

Screwdriving

Set the mode selector switch (4) to the "screw-

driving" symbol.

Set the torque presetting ring (3) to the re-

quired torque.

Drilling

Set the mode selector switch (4) to the

"drilling" symbol.

Impact drilling

Set the mode selector switch (4) to the "impact

drilling" symbol.

Temperature-dependent overload protection

In normal conditions of use, the power tool cannot be over-

loaded. If the power tool is overloaded or the permitted bat-

tery temperature is exceeded, the electronics of the power

tool will switch off until the temperature returns to within the

optimum operating temperature range.

Protection against deep discharge

The lithium-ion battery is protected against deep discharge

by the Electronic Cell Protection (ECP). When the battery is

discharged, the power tool is switched off by means of a pro-

tective circuit: The application tool no longer rotates.

Practical advice

u Only apply the power tool to the screw/nut when the

tool is switched off. Rotating tool inserts can slip off.

After working at a low speed for an extended period, you

should operate the power tool at the maximum speed for ap-

proximately three minutes without load to cool it down.

1 609 92A 4Y3 | (23.04.2019) Bosch Power Tools

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Bosch UniversalImpact 18 Manual

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