Dust/Chip Extraction; Starting Operation - Bosch GWS Professional 900-100 Notice Originale

OBJ_BUCH-2775-004.book Page 11 Monday, April 3, 2017 8:22 AM
Lock the grinder spindle with
the spindle lock button 1. To
23
tighten the quick-clamping
nut, firmly turn the grinding
disc in clockwise direction.
A properly fastened, undam-
aged quick-clamping nut can
be manually loosened by
turning the knurled ring in an-
ticlockwise direction.
Never loosen a tight quick-
clamping nut using pliers;
always use the combination
spanner. Apply the combina-
tion spanner 5/6 as shown in
the figure.
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
100 7 16.0
115 7 22.2
125 7 22.2
100 –
D
115 –
125 –
d
70 30 M 10
b
75 30 M 14
D
Rotating the Machine Head
 Before any work on the machine itself, pull the mains
plug.
Bosch Power Tools
without removing it from the housing, to the new position.
Screw in and tighten the four screws again.

Dust/Chip Extraction

 Dust from materials such as lead-containing coatings,
 Prevent dust accumulation at the workplace. Dust can
Operation

Starting Operation

 Observe correct mains voltage! The voltage of the pow-
-1
d [min ] [m/s]
11000 80
11000 80
11000 80
 Products sold in AUS and NZ only: Use a residual current
– 11000 80
– 11000 80
 Hold power tool by insulated gripping surfaces 22 and
– 11000 80
11000 45
11000 45
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
occur upon switching on.
Please observe the suitability of the power generator being
used, particularly with regard to the mains voltage and fre-
quency.
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.
Completely unscrew the
four screws. Rotate the
machine head carefully,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable
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.
easily ignite.
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.
device (RCD) with a rated residual current of 30 mA or
less.
auxiliary handle 4 only. The accessory may contact hid-
den wiring or its own cord. Accessory contacting a "live"
wire may make exposed metal parts of the power tool "live"
and shock the operator.
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1 609 92A 3T4 | (3.4.17)