Manual Bosch GEX 34-150 (page 14 of 193) (All languages)

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14 | English

Changing the sanding pad (see figure B)

Note: Replace damaged sanding pads (8) immediately.

Remove the sanding sheet or polishing tool. Unscrew the

screw (11) completely and remove the sanding pad (8). At-

tach the new sanding pad (8) and retighten the screw so that

it is finger-tight.

Note: Pads with diameters of 150 mm and 125 mm have dif-

ferent carriers. The pads can only be fitted to the right power

tool.

Note: When attaching the sanding pad, make sure that the

teeth of the catch mate with the recesses in the sanding pad.

Note: Damaged sanding pads must only be replaced by an

after-sales service centre authorised to work with Bosch

power tools.

Dust/chip extraction

The dust from materials such as lead paint, some types of

wood, minerals and metal can be harmful to human health.

Touching or breathing in this dust can trigger allergic reac-

tions and/or cause respiratory illnesses in the user or in

people in the near vicinity.

Certain dusts, such as oak or beech dust, are classified as

carcinogenic, especially in conjunction with wood treatment

additives (chromate, wood preservative). Materials contain-

ing asbestos may only be machined by specialists.

– Use a dust extraction system that is suitable for the ma-

terial wherever possible.

– Provide good ventilation at the workplace.

– It is advisable to wear a P2 filter class breathing mask.

The regulations on the material being machined that apply in

the country of use must be observed.

uAvoid dust accumulation at the workplace. Dust can

easily ignite.

Self-generated dust extraction with dust box (see figures

C1–C4)

Before fitting the dust box (6), remove the plastic slider

(13). Fit the dust box (6) onto the extraction outlet (14) so

that it clicks into place. Make sure that the plastic slider (13)

is partly within the bracket (12).

To empty the dust box (6), press the locking lever (15) on

the side of the dust box (). Remove the dust box by pulling

it downwards ().

Before opening the dust box (6), knock the dust box against

a firm surface as shown in the figure to loosen the dust from

the filter element.

Take hold of the dust box (6) by the recessed grip, fold the

filter element (16) upwards out of the way and empty the

dust box. Use a soft brush to clean the flaps of the filter ele-

ment (16).

External dust extraction (see figure D)

Attach the dust extraction adapter (17) to the extraction

outlet (14). Make sure that the locking levers of the dust ex-

traction adapter lock into place. A dust extraction hose with

a diameter of 19mm can be connected to the dust extrac-

tion adapter (17).

To remove the dust extraction adapter (17), press its lock-

ing levers down simultaneously and take off the dust extrac-

tion adapter.

The dust extractor must be suitable for the material being

worked.

When extracting dry dust that is especially detrimental to

health or carcinogenic, use a special dust extractor.

When working on vertical surfaces, hold the power tool with

the dust extraction hose facing downwards.

Self-generated dust extraction with dust bag (see figure

A dust bag (accessory) (19) can be used for smaller jobs.

Before fitting the dust bag (19), remove the plastic slider

(13). Firmly attach the dust bag nozzle to the extraction out-

let (14). Make sure that the plastic slider (13) is partly

within the bracket provided for the dust bag (19).

Empty the dust bag (19) at regular intervals to maintain op-

timum dust collection.

Auxiliary Handle

The auxiliary handle (1) enables comfortable handling and

optimum power distribution, with a high sanding removal

rate in particular.

Use the screw (2) to secure the auxiliary handle (1) on the

housing.

Operation

Starting Operation

uPay 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.

uProducts 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.

Switching On and Off

uMake sure that you are able to press the On/Off switch

without releasing the handle.

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

switch (4).

To lock the on/off switch (4) press and hold it while also

pushing the lock-on button (5).

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

If the on/off switch (4) is locked, press the switch first and

then release it.

Preselecting the orbital stroke rate

You can even preselect the orbital stroke rate during opera-

tion using the necessary orbital stroke rate preselection

thumbwheel (3).

1–2 Low orbital stroke rate

3–4 Medium orbital stroke rate

5–6 High orbital stroke rate

1 609 92A 7T6 | (21.06.2022) Bosch Power Tools

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Bosch GEX 34-150 Manual

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