Bosch GWS 27-230 PR Professional Manual Original página 27

nut (14) or quick-clamping nut (15), the use of intermediate
layers is not necessary.
To secure the grinding/cutting disc, place the mounting
flange with O-ring (10) on the grinding spindle (19) and
screw on the clamping nut (14). Ensure the alignment of the
clamping nut (14) depending on the grinding/cutting disc
used (see figures in the front part of the operating manual),
and tighten them with the two-pin spanner (see " Quick-
clamping nut ", page 27).
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 centring collar in the mounting
flange (10). If the O-ring is missing
or damaged, the mounting flange
(10) must be replaced before opera-
tion can resume.
Quick-clamping nut
To change the abrasive tool easily without having to use any
additional tools, you can use the quick-clamping nut (15) in-
stead of the clamping nut (14).
The quick-clamping nut (15) may be used only for
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grinding or cutting discs.
Only use quick-clamping nuts (15) that are in good work-
ing order and not damaged.
When screwing on, make sure that the printed side of the
quick-clamping nut (15) is not facing the grinding disc;
the arrow must be pointing towards the index mark (38).
Press the spindle lock button (1) to
(38)
lock the grinding spindle. To tighten
the quick-clamping nut, turn the grind-
ing disc firmly clockwise.
If the quick-clamping nut has been at-
tached correctly and is not damaged,
you can loosen it by hand by turning
the knurled ring anticlockwise. If the
quick-clamping nut is stuck, do not
attempt to loosen it with pliers – al-
ways use the two-pin spanner. Posi-
tion the two‑pin spanner as shown in
the figure.
Bosch Power Tools
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 – 22.2
230 8 – 22.2
180 4.2 – 22.2
230 4.2 – 22.2
180 – –
230 – –
100 27 – M 14
125 30 – M 14
180 26 – M 14
180 20 – 22.2
125 – – M 14
83 – – M 14
180 3.0 7 22.2
s 230 3.0 7 22.2
α
Operation
Do not load the power tool so heavily that it comes to a
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stop.
Pull the plug out of the socket before carrying out any
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work on the power tool.
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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English | 27
[°]
-1
d α [min ] [m/s]
– 8500 80
– 6500 80
– 8500 80
– 6500 80
– – 8500 80
– – 6500 80
– 8500 80
– 6500 80
– 8500 80
– 8500 80
– 8500 80
– 8500 80
> 0 8500 80
> 0 6500 80
1 609 92A 8TU | (02.05.2024)