Dust/Chip Extraction - Bosch Professional GWS 15-125 CIEH Original Instructions Manual

OBJ_BUCH-194-007.book Page 11 Thursday, July 14, 2016 9:03 AM
Cup Brush/Disc Brush
 For operations with the cup brush/wheel brush, always
mount the hand guard 16.
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 11 in-
stead of the clamping nut 10.
 The quick-clamping nut 11 may be used only for grind-
ing or cutting discs.
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 24.
Lock the grinder spindle with
the spindle lock button 2. To
24
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. Al-
ways use the two-pin span-
ner. Insert the two-pin span-
ner as shown in the
illustration.
Approved Grinding Tools
All grinding tools mentioned in these operating instructions
can be used.
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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.
Bosch Power Tools
max.
[mm] [mm]
D b
d
115 6 22.2
125 6 22.2
D
150 6 22.2
b
D
115 –
125 –
d
75 30 M 14
b
D
Rotating the Machine Head
 Before any work on the machine itself, pull the mains
plug.
Completely unscrew the four screws. Rotate the machine
head carefully, without removing it from the housing, to the
new position. Screw in and tighten the four screws again.

Dust/Chip Extraction

 Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suita-
ble for the material.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dusts can
easily ignite.
English | 11
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d [min ] [m/s]
11000 80
11000 80
9300 80
– 11000 80
– 11000 80
11000 45
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 cut-
ting operations using the
cutting guide with dust
extraction protection
guard 21 or for left-hand-
ed persons.
1 609 92A 1UD | (14.7.16)