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OBJ_BUCH-3123-002.book Page 19 Monday, July 17, 2017 3:36 PM
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Rubber Sanding Plate
For operations with the rubber sanding plate 14, al-
ways mount the hand guard 13.
See graphics page for the mounting sequence.
Screw on the round nut 16 and tighten with the two-pin span-
ner.
Protection Guard for Cutting
For cutting with bonded abrasives, always use the pro-
tection guard for cutting 11.
Provide for sufficient dust extraction when cutting
stone.
The protection guard for cutting 11 is mounted in the same
manner as the protection guard for grinding 6.
Cutting Guide with Dust Extraction Protection Guard
The cutting guide with dust extraction protection guard 18 is
mounted in the same manner as the protection guard for
grinding 6.
Cup Brush/Disc Brush
For operations with the cup brush/wheel brush, always
mount the hand guard 13.
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.
Auxiliary Handle
Screw the auxiliary handle 3 on the right or left of the machine
head depending on the working method.
Approved Grinding Tools
Hand Guard
For operations with the rubber sanding plate 14 or with
the cup brush/wheel brush/flap disc, always mount the
hand guard 13.
The hand guard 13 is fastened with the auxiliary handle 3.
Mounting the Grinding Tools
All grinding tools mentioned in these operating instructions
can be used.
The permissible speed [min-1] 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
[min-1]
[m/s]
100
115
125
6
6
6
16.0
22.2
22.2
12000
12000
12000
80
80
80
D
Before any work on the machine itself, pull the mains
plug.
Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Clean the grinder spindle 4 and all parts to be mounted.
For clamping and loosening the grinding tools, lock the grind-
er spindle with the spindle lock button 1.
Actuate the spindle lock button only when the grinder
spindle is at a standstill. Otherwise, the machine may be-
come damaged.
100
115
125
–
–
–
–
–
–
12000
12000
12000
80
80
80
d
70
75
30
30
M 10
M 14
12000
12000
45
80
D
b
Rotating the Machine Head
Grinding/Cutting Disc
Pay attention to the dimensions of the grinding tools. The
mounting hole diameter must fit the mounting flange without
play. Do not use reducers or adapters.
When using diamond cutting discs, pay attention that the di-
rection-of-rotation arrow on the diamond cutting disc and the
direction of rotation of the machine (see direction-of-rotation
arrow on the machine head) agree.
See graphics page for the mounting sequence.
To fasten the grinding/cutting disc, screw on the clamping nut
9 and tighten with the two-hole spanner.
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.
Mounting flange for grinding spindle M 10: The mounting
flange can be used on both sides.
Before any work on the machine itself, pull the mains
plug.
The machine head can be
rotated with respect to
the machine housing in
90° steps. In this man-
ner, the On/Off switch
can be brought into a
more convenient posi-
tion for special working
situations, e.g. for left-
handed persons.
Flap Disc
For operations with the flap disc, always mount the
hand guard 13.
Bosch Power Tools
1 609 92A 3SR | (17.7.17)