OBJ_BUCH-3153-001.book Page 26 Tuesday, July 11, 2017 1:50 PM
26 | English
A plastic part (O-ring) is fitted around
the centring collar of mounting flange
13. If the O-ring is missing or dam-
aged, the mounting flange 13 must be
replaced before resuming operation.
Flap Disc
For operations with the flap disc, always mount the
hand guard 19.
Rubber Sanding Plate
For operations with the rubber sanding plate 20, al-
ways mount the hand guard 19.
See graphics page for the mounting sequence.
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 19.
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.
Quick-clamping Nut
For convenient changing of grinding tools without the use of
additional tools, you can use the quick-clamping nut 16 in-
stead of the clamping nut 15.
The quick-clamping nut 16 may be used only for grind-
ing or cutting discs.
Use only a flawless, undamaged quick-clamping nut 16.
When screwing on, pay attention that the side of the
quick-clamping nut 16 with printing does not face the
grinding disc; the arrow must point to the index mark
38.
Lock the grinder spindle with
the spindle lock button 3. To
tighten the quick-clamping
38
nut, firmly turn the grinding
disc in clockwise direction.
1 609 92A 3UT | (11.7.17)
Approved Grinding Tools
All grinding tools mentioned in these operating instructions
can be used.
The permissible speed [min
[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.
(M14)
D
d
b
D
d
D
Rotating the Machine Head (GWS 18V-125 PC)
Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
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. Al-
ways use the two-pin span-
ner. Insert the two-pin span-
ner as shown in the
illustration.
-1
] or the circumferential speed
max.
[mm]
[mm]
-1
D
b
d
[min
]
125
7
22.2
9000
125
–
–
9000
75
30
M 14
9000
82
–
M 14
9000
Bosch Power Tools
[m/s]
80
80
45
80