12
| English
1 609 92A 3ZY | (14.12.17)
Bosch Power Tools
Therefore, observe the permissible
rotational/circumferen-
tial speed
on the label of the grinding tool.
Rotating the Machine Head
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 cut-
ting operations using the
cutting guide with dust
extraction protection
guard
21
or for left-
handed persons.
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
Dust 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 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.
Prevent dust accumulation at the workplace.
Dust can
easily ignite.
Operation
Starting Operation
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.
Products sold in AUS and NZ only
: Use a residual current de-
vice (RCD) with a rated residual current of 30 mA or less.
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.
Switching On and Off
To
start
the power tool, press the On/Off switch
4
forward
and then down.
To
lock-on
the pressed On/Off switch
4
, push the On/Off
switch
4
further forward.
To
switch off
the power tool, release the On/Off switch
4
, or
when it is locked, briefly press the On/Off switch
4
and then
release it.
Switch Version without Lock-on (country-specific):
To
start
the power tool, press the On/Off switch
4
forward
and then down.
To
switch off
the machine, release the On/Off switch
4
.
Check grinding tools before using. The grinding tool
must be mounted properly and be able to move freely.
Carry out a test run for at least one minute with no load.
Do not use damaged, out-of-centre or vibrating grind-
ing tools.
Damaged grinding tools can burst and cause in-
juries.
Kickback stop
In case of a sudden drop in speed, e.g.,
caused by a jammed disc while cutting, the
power supply to the motor is electronically
interrupted.
To
restart the operation
, switch the On/Off
switch
4
to the Off position and start the ma-
chine again.
max.
[mm]
[mm]
D
b
d
[min
-1
]
[m/s]
115
125
150
7
7
7
22.2
22.2
22.2
12000
12000
10000
80
80
80
115
125
–
–
–
–
12000
12000
80
80
75
30
M 14
12000
45
82
–
M 14
12000
80
D
D
b
d
D
d
OBJ_BUCH-3473-001.book Page 12 Thursday, December 14, 2017 10:33 AM