Bosch GEX 40-150 Professional Originalbetriebsanleitung Seite 15

Random orbit sander
Protection class
The specifications apply to a rated voltage [U] of 230 V. These spe-
cifications may vary at different voltages and in country-specific mod-
els.
Noise/Vibration Information
Noise emission values determined according
to EN 62841-2-4.
Typically, the A-weighted noise level of the power tool is:
Sound pressure level 81 dB(A); sound power
level 92 dB(A). Uncertainty K = 3 dB.
Wear hearing protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 62841-2-4:
a < 2.5 m/s 2 , K = 1.5 m/s 2 ,
h
The vibration level and noise emission value given in these
instructions have been measured in accordance with a
standardised measuring procedure and may be used to com-
pare power tools. They may also be used for a preliminary
estimation of vibration and noise emissions.
The stated vibration level and noise emission value repres-
ent the main applications of the power tool. However, if the
power tool is used for other applications, with different ap-
plication tools or is poorly maintained, the vibration level
and noise emission value may differ. This may significantly
increase the vibration and noise emissions over the total
working period.
To estimate vibration and noise emissions accurately, the
times when the tool is switched off or when it is running but
not actually being used should also be taken into account.
This may significantly reduce vibration and noise emissions
over the total working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and application tools, keeping their hands warm,
and organising workflows correctly.
Assembly
Pull the plug out of the socket before carrying out any
▶
work on the power tool.
Changing the Sanding Sheet
To remove the sanding sheet (10), lift it from the side and
pull it from the sanding pad (8).
Remove dirt and dust from the sanding pad (8), e.g. with a
paintbrush, before attaching a new sanding sheet.
The surface of the sanding pad (8) is fitted with a hook-and-
loop fastening, allowing sanding sheets with a hook-and-loop
backing to be secured quickly and easily.
Press the sanding sheet (10) firmly onto the underside of
the sanding pad (8).
To ensure optimum dust extraction, make sure that the
punched holes in the sanding sheet (10) are aligned with the
drilled holes in the sanding pad (8).
Bosch Power Tools
Selection of the Sanding Plate
GEX 40-150
/ II
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
– Soft sanding pad: Suitable for all sanding work, universal
application
– Hard sanding pad: Suitable for heavy sanding on flat sur-
faces
Changing the Sanding Pad
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.
Avoid dust accumulation at the workplace. Dust can
▶
easily ignite.
Self-generated dust extraction with dust box (see figures C–
G)
Slide the dust box (7) onto the extraction outlet (12). Turn
the dust box in such a manner that its recesses face against
the tips on the extraction outlet and the dust box can be felt
to engage.
You can easily check the filling level of the dust box (7)
through the transparent container.
To empty the dust box (7), rotate slightly and pull it back.
Unscrew the filter element (6) and pull it out of the dust box
(7). Empty the dust box.
English | 13
1 609 92A 7T7 | (21.06.2022)