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To fasten the grinding/cutting disc, screw on the clamping
nut (10) and tighten with the two-hole spanner (see " Quick-
clamping nut
", page 11).
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.
A plastic part (O-ring) is fitted around the cent-
ring collar in the mounting flange (8). If the O-
ring is missing or damaged, the mounting
flange (8) must be replaced before operation
can resume.
Flap disc
Always fit the hand guard (16) when working with the
u
flap disc.
Rubber sanding pad
Always fit the hand guard (16) when working with the
u
rubber sanding pad (18).
See the graphics page for fitting instructions.
Before fitting the rubber sanding pad (18), place the two
spacer discs (17) on the grinding spindle (5).
Screw on the round nut (20) and tighten with the two-pin
spanner.
Cup brush/disc brush
Always fit the hand guard (16) when working with the
u
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 (10).
The quick-clamping nut (12) may be used only for
u
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 (25).
Bosch Power Tools
(25)
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
180
8
230
8
180
–
230
–
100
30
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
English | 11
Press the spindle lock but-
ton (1) to lock the grinding
spindle. To tighten the
quick-clamping nut, turn
the grinding disc firmly
clockwise.
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. If the quick-
clamping nut is stuck, do
not attempt to loosen it
with pliers – always use
the two-pin spanner. Posi-
tion the two‑pin spanner as
shown in the figure.
[mm]
-1
d
[min
]
[m/s]
22.2
8500
80
22.2
6500
80
–
8500
80
–
6500
80
M 14
8500
45
1 609 92A 5TG | (25.11.2020)
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