Maintenance And Service - Bosch GSB 550 Professional Notice Originale

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Notice originale (62 pages)

Table Des Matières

Table des Matières

8 | English

Screwdriving tools (see figure C)

You should always use a universal bit holder (13) when using

screwdriver bits (12). Only use screwdriver bits that fit the

screw head.

For screwdriving, make sure the "drilling/impact drilling" se-

lector switch (2) is always set to the "drilling" symbol.

Changing the drill chuck

If your power tool does not have a drill spindle locking mech-

anism, you must have the drill chuck changed by an author-

ised after-sales service centre for Bosch power tools.

The drill chuck must be tightened using a tight-

ening torque of approx. 30–35 Nm.

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.

Avoid dust accumulation at the workplace. Dust can

easily ignite.

Operation

Starting Operation

Pay attention to the mains voltage. The voltage of the

power source must match the voltage specified on the

rating plate of the power tool. Power tools marked

with 230 V can also be operated with 220 V.

Products that are only sold in AUS and NZ: Use a resid-

ual current device (RCD) with a nominal residual current

of 30 mA or less.

Setting the rotational direction (see figure D – E)

The rotational direction switch (5) is used to change the ro-

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

sible while the on/off switch (4) is being pressed.

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

tational direction switch (5) through to the left stop.

Left Rotation: To loosen and unscrew screws and nuts,

press the rotational direction switch (5) through to the right

stop.

1 609 92A 5CG | (02.12.2019)

Setting the Operating Mode

Drilling and screwdriving

Set the selector switch (2) to the "drilling"

symbol.

Impact drilling

Set the selector switch (2) to the "impact

drilling" symbol.

The selector switch (2) clicks into place and

can also be actuated when the motor is running.

Switching on/off

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

(4).

Press the lock-on button (3) to lock the on/off switch (4) in

this position.

To switch off the power tool, release the on/off switch (4);

or, if the switch is locked with the lock-on button (3), briefly

press the on/off switch (4) and then release it.

Adjusting the Speed/Impact Rate

You can adjust the speed/impact rate of the power tool when

it is on by pressing in the on/off switch (4) to varying ex-

tents.

Applying light pressure to the on/off switch (4) results in a

low rotational speed/impact rate. Applying increasing pres-

sure to the switch increases the speed/impact rate.

Practical Advice

Pull the plug out of the socket before carrying out any

work on the power tool.

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.

To drill into tiles, set the selector switch (2) to the "drilling"

symbol. After drilling through the tile, set the selector switch

to the "impact drilling" symbol and drill with impact.

Use carbide drill bits when working with concrete, stone and

masonry.

When drilling into metal, only use sharpened HSS drills (HSS

= high-speed steel) which are in perfect condition. The

Bosch accessory range guarantees appropriate quality.

Using the drill bit sharpener (accessory), you can effortlessly

sharpen twist drill bits with a diameter of 2.5–10 mm.