Dust/Chip Extraction; Operation; Working Advice - Bosch Professional GWS 18V-180 PC Original Instructions Manual

A plastic part (O-ring) is fitted around
the centring collar in the mounting
flange (12). If the O-ring is missing
or damaged, the mounting flange
(12) must be replaced before opera-
tion can resume.
Approved abrasive tools
You can use all the abrasive tools mentioned in these operat-
ing instructions.
-1
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-
u
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-
ing, into the new position (➋). Screw in and retighten the
four screws (➌).
Bosch Power Tools
[°]
-1
d α [min ] [m/s]
– 7000 80
– 7000 80
– – 7000 80
– 7000 45
– 7000 80
– 7000 80
– 7000 80
> 0 7000 80

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
u
easily ignite.

Operation

Do not load the power tool so heavily that it comes to a
u
stop.
Remove the battery from the power tool before carry-
u
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;
u
see the "Information on structural design" section.
Clamp the workpiece if it is not secure under its own
u
weight.
If the power tool has been subjected to a heavy load,
u
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.
u
Do not touch grinding and cutting discs until they have
u
cooled down. The discs can become very hot while work-
ing.

Working advice

Rough grinding
Always use the protective guard for grinding (10)
u
when rough grinding with bonded abrasives.
Never use cutting discs for rough grinding.
u
When rough grinding, the protective guard for
u
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.
The protective guard for grinding (10) must be used with
u
a fitted cover for cutting (11) when using bonded discs
which are approved for cutting and grinding.
English | 13
1 609 92A 8DL | (06.12.2022)