Bosch GWS Professional 8-125 Originalbetriebsanleitung Seite 22

OBJ_BUCH-340-005.book Page 23 Friday, May 13, 2011 8:08 AM
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.
-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
115 6 22.2
d
125 6 22.2
D
150 6 22.2
b
115 –
D
125 –
d
75 30 M 14
b
D
Rotating the Machine Head
Before any work on the machine itself, pull the mains
plug.
Bosch Power Tools
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
Operation
-1
d [min ] [m/s]
Starting Operation
11000 80
11000 80
9300 80
– 11000 80
– 11000 80
When operating the machine with power from mobile genera-
tors that do not have sufficient reserve capacity or are not
equipped with suitable voltage control with starting current
amplification, loss of performance or untypical behavior can
11000 45
occur upon switching on.
Please observe the suitability of the power generator being
used, particularly with regard to the mains voltage and fre-
quency.
Switching On and Off
To start the power tool, push the On/Off switch 4 forwards.
To lock the On/Off switch 4, press the On/Off switch 4 down
at the front until it latches.
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-
handed persons.
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.
Observe correct mains voltage! The voltage of the pow-
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
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1 619 929 J35 | (13.5.11)