Bosch GEX 125-1 A Original Instructions Manual Download Page 15

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Material

Application

Grit

– Car paint
– Stone
– Marble
– Granite
– Ceramic
– Glass
– Perspex
– Fibreglass reinforced plastics

For pre-sanding

Coarse

For shaping and edge chamfering

Medium

100
120

For fine sanding during shaping

Fine

180
240
320
400

Buffing and edge rounding

Very fine

600

1200

Changing the sanding sheet (see figure A)

To remove the sanding sheet

(6)

, lift it from the side and pull

it from the sanding pad

(5)

Remove dirt and dust from the sanding pad

(5)

, e.g. with a

paintbrush, before attaching a new sanding sheet.
The surface of the sanding pad

(5)

is fitted with a hook-and-

loop fastening, allowing sanding sheets with a similar back-
ing to be secured quickly and easily.
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 are aligned with the
drilled holes in the sanding pad.

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,

universal application.

– Hard sanding pad: Suitable for heavy sanding on flat sur-

faces.

Changing the sanding pad (see figure B)

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.

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.

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