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– Use a dust extraction system that is suitable for the ma-
Press the sanding sheet (6) firmly onto the underside of the
sanding pad (5).
To ensure optimum dust extraction, make sure that the
punched holes in the sanding sheet (6) are aligned with the
drilled holes in the sanding pad (5).
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.
u Avoid dust accumulation at the workplace. Dust can
easily ignite.
Self-generated dust extraction with dust box (see figure
C1–C4)
Place the dust box (3) onto the extraction outlet (8) until it
clicks into place.
You can easily check the filling level of the dust box (3)
through the transparent container.
To empty the dust box (3), rotate and pull it downwards.
Before opening the dust box (3), knock the dust box against
a firm surface as shown in the figure to loosen the dust from
the filter element.
Holding the dust box (3) firmly, flap the filter element (9)
upwards out of the way and empty the dust box. Use a soft
brush to clean the flaps of the filter element (9).
The alignment aid that is in the tool box and shown in the fig-
ure enables easy alignment of the sanding sheet (6) on the
sanding pad (5). Place the sanding sheet into the alignment
aid with the hook-and-loop fastening facing upwards and
press the power tool with the sanding pad firmly onto it.
Selection of the Sanding Plate
The power tool can be fitted with sanding pads of various
hardnesses, depending on the application:
– Extra soft sanding pad: Suitable for polishing and sensit-
ive sanding, even on curved surfaces.
– Medium hard sanding pad: Suitable for all sanding work,
External dust extraction (see figure D)
Fit a dust extraction hose (10) onto the extraction outlet (8).
Connect the dust extraction hose (10) to an extractor. You
will find an overview of connecting to various dust extractors
at the beginning of these operating instructions.
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.
universal application.
– Hard sanding pad: Suitable for heavy sanding on flat sur-
faces.
Operation
Changing the sanding pad (see figure B)
Starting Operation
u 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.
u 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.
Switching On/Off
Note: Replace damaged sanding pads (5) immediately.
Remove the sanding sheet or polishing tool. Unscrew the
four screws completely (7) and remove the sanding pad (5).
Attach the new sanding pad (5) and retighten the screws.
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.
u Make sure that you are able to press the On/Off switch
Dust/Chip Extraction
without releasing the handle.
To switch on the power tool, tilt the on/off switch (1) to-
ward the right to the “I” position.
To switch off the power tool, tilt the on/off switch (1) to-
ward the left to the “O” position.
Preselecting the orbital stroke rate (GEX 125-1 AE)
You can even preselect the orbital stroke rate during opera-
tion using the necessary orbital stroke rate preselection
thumbwheel (2).
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.
Bosch Power Tools
1 609 92A 4AG | (04.11.2020)