Bosch GWS 18V-180 PC Professional Originalbetriebsanleitung Seite 26

26 | English
After fitting the abrasive tool, check that the abrasive
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tool is fitted correctly and can turn freely before
switching on the power tool. Make sure that the abras-
ive tool does not brush against the protective guard or
other parts.
A plastic part (O-ring) is fitted around the cent-
ring collar in the mounting flange (12). If the
O-ring is missing or damaged, the mounting
flange (12) must be replaced before operation
can resume.
Approved abrasive tools
You can use all the abrasive tools mentioned in these operat-
ing instructions.
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The permissible speed [min ] or the circumferential speed
[m/s] of the abrasive tools used must at least match the val-
ues given in the table.
It is therefore important to observe the permissible rota-
tional/circumferential speed on the label of the abrasive
tool.
Max. [mm] [mm]
D b s
180 8.3 – 22.2
180 3.0 – 22.2
180 – –
100 30 – M 14
180 24 – M 14
180 19 – 22.2
125 – – M 14
180 6 10 22.2
s
α
Rotating the machine head (see figure C)
Remove the battery from the power tool before carry-
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ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
The machine head can be rotated in 90° increments. In this
way, the on/off switch can be brought into a more favourable
handling position for particular applications, e.g. for left-
handed tool users.
Completely unscrew the four screws (➊). Rotate the ma-
chine head carefully, without removing it from the hous-
1 609 92A 7AT | (15.06.2022)
[°]
-1
d α [min ] [m/s]
– 7000 80
– 7000 80
– – 7000 80
– 7000 45
– 7000 80
– 7000 80
– 7000 80
> 0 7000 80
ing, into the new position (➋). Screw in and retighten the
four screws (➌).
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
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easily ignite.
Operation
Do not load the power tool so heavily that it comes to a
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stop.
Remove the battery from the power tool before carry-
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ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Exercise caution when cutting slots in structural walls;
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see the "Information on structural design" section.
Clamp the workpiece if it is not secure under its own
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weight.
If the power tool has been subjected to a heavy load,
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continue to run it at no-load for several minutes to
cool down the accessory.
Do not use the power tool with a cut-off stand.
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Do not touch grinding and cutting discs until they have
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cooled down. The discs can become very hot while work-
ing.
Working advice
Rough grinding
Always use the protective guard for grinding (10)
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when rough grinding with bonded abrasives.
Never use cutting discs for rough grinding.
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When rough grinding, the protective guard for
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grinding (10) with a fitted cover for cutting (11) can
impact the workpiece and lead to a loss of control.
The best rough grinding results are achieved with a set angle
of 30° to 40°. Move the power tool back and forth with mod-
erate pressure. This will ensure that the workpiece does not
become too hot or discolour and that grooves are not
formed.
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