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OBJ_BUCH-777-009.book Page 21 Monday, August 5, 2013 11:15 AM
To fasten the grinding/cutting disc, screw on the clamping nut
9 and tighten with the two-pin spanner; see Section "Quick-
clamping Nut ".
After mounting the grinding tool and before switching
on, check that the grinding tool is correctly mounted
and that it can turn freely. Make sure that the grinding
tool does not graze against the protection guard or oth-
er parts.
A plastic part (O-ring) is fitted around
the centring collar of mounting flange 7.
If the O-ring is missing or damaged,
the mounting flange 7 must be replaced
before resuming operation.
Flap Disc
For operations with the flap disc, always mount the
hand guard 18.
Rubber Sanding Plate
For operations with the rubber sanding plate 20, al-
ways mount the hand guard 18.
See graphics page for the mounting sequence.
Before mounting the rubber sanding plate 20, put the 2 spac-
er discs 19 onto the grinder spindle 4.
Screw on the round nut 22 and tighten with the two-pin span-
ner.
Cup Brush/Disc Brush
For operations with the cup brush/wheel brush, always
mount the hand guard 18.
See graphics page for the mounting sequence.
The cup brush/disc brush must be able to be screwed onto
the grinder spindle until it rests firmly against the grinder
spindle flange at the end of the grinder spindle threads. Tight-
en the cup brush/disc brush with an open-end spanner.
Grinding Cup
When working with the grinding cup, mount the special
protection guard 15.
The grinding cup 16 should never project further out of the
protection guard 15 than necessary for the respective grind-
ing application. Adjust the protection guard 15 accordingly to
this dimension.
See graphics page for the mounting sequence.
Screw on clamping nut 9 and tighten with two-pin spanner
17.
Quick-clamping Nut
For convenient changing of grinding tools without the use of
additional tools, you can use the quick-clamping nut 11 in-
stead of the clamping nut 9.
The quick-clamping nut 11 may be used only for grind-
ing or cutting discs.
Bosch Power Tools
Use only a flawless, undamaged quick-clamping nut 11.
When screwing on, pay attention that the side of the
quick-clamping nut 11 with printing does not face the
grinding disc; the arrow must point to the index mark 27.
Lock the grinder spindle with
the spindle lock button 1. To
27
tighten the quick-clamping
nut, firmly turn the grinding
disc in clockwise direction.
A properly attached, undam-
aged quick-clamping nut can
be loosened by hand when
turning the knurled ring in an-
ticlockwise direction.
Never loosen a tight quick-
clamping nut with pliers.
Always use the two-pin
spanner. Insert the two-pin
spanner as shown in the illus-
tration.
Approved Grinding Tools
All grinding tools mentioned in these operating instructions
can be used.
-1
The permissible speed [min
] or the circumferential speed
[m/s] of the grinding tools used must at least match the values
given in the table.
Therefore, observe the permissible rotational/circumferen-
tial speed on the label of the grinding tool.
max.
[mm]
[mm]
D
b
d
180
8
22.2
D
230
8
22.2
b
D
180
–
230
d
100
30
M 14
b
D
English | 21
-1
d
[min
]
[m/s]
8500
80
6500
80
8500
80
–
6500
80
8500
45
1 609 92A 0B8 | (5.8.13)
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