Bosch Professional GWS 9-115 Original Instructions Manual page 20

20 | English
After fitting the abrasive tool, check that the abrasive
u
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.
Mounting flange for grinding spindle M 14:
A plastic part (O-ring) is fitted around the cent-
ring collar in the mounting flange (9). If the O-
ring is missing or damaged, the mounting
flange (9) must be replaced before operation
can resume.
Flap disc
Always fit the hand guard (16) when working with the
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flap disc.
Rubber sanding pad
Always fit the hand guard (16) when working with the
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rubber sanding pad (17).
See the graphics page for fitting instructions.
Screw on the round nut (19) and tighten with the combina-
tion wrench (5).
Cup brush/disc brush
Always fit the hand guard (16) when working with the
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cup brush or disc brush.
See the graphics page for fitting instructions.
The cup brush/disc brush must be screwed onto the grinding
spindle until it rests firmly against the grinding spindle flange
at the end of the grinding spindle thread. Tighten the cup
brush/disc brush with an open-ended spanner.
Quick-clamping nut
To change the abrasive tool easily without having to use any
additional tools, you can use the quick-clamping nut (12) in-
stead of the clamping nut (11).
The quick-clamping nut (12) may be used only for
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grinding or cutting discs.
Only use quick-clamping nuts (12) that are in good work-
ing order and not damaged.
When screwing on, make sure that the printed side of the
quick-clamping nut (12) is not facing the grinding disc;
the arrow must be pointing towards the index mark (22).
(22)
1 609 92A 56A | (12.02.2021)
Press the spindle lock but-
ton (1) to lock the grinding
spindle. To tighten the
quick-clamping nut, turn
the grinding disc firmly
clockwise.
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]
D b
115 7
125 7
115 -
125 -
75 30
Rotating the machine head
Pull the plug out of the socket before carrying out any
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work on the power tool.
without removing it from the housing, into the new posi-
tion. Screw in and retighten the four screws.
Dust/Chip Extraction
The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
If the quick-clamping nut
has been attached correctly
and is not damaged, you
can loosen it by hand by
turning the knurled ring an-
ticlockwise. Never loosen a
tight quick-clamping nut
with pliers. Always use
the combination wrench.
Insert the combination
wrench as shown in the fig-
ure.
[mm]
-1
d [min ] [m/s]
22,2 11000 80
22,2 11000 80
- 11000 80
- 11000 80
M 14 11000 45
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 ap-
plications, e.g. for left-
handed tool users.
Completely unscrew the
four screws. Rotate the ma-
chine head carefully,
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