switching on the power tool. Make sure that the abras-
ive tool does not brush against the protective guard or
other parts.
Flap disc
Always fit the hand guard (12) when working with the
u
flap disc.
Rubber sanding pad
Always fit the hand guard (12) when working with the
u
rubber sanding pad (13).
See the graphics page for fitting instructions.
Screw on the round nut (15) and tighten with the two-pin
spanner.
Cup brush/disc brush
Always fit the hand guard (12) when working with the
u
cup brush or disc brush.
See the graphics page for fitting instructions.
The cup brush/disc brush must be screwed onto the grinding
spindle until it rests firmly against the grinding spindle flange
at the end of the grinding spindle thread. Tighten the cup
brush/disc brush with an open-ended spanner.
Approved abrasive tools
You can use all the abrasive tools mentioned in these operat-
ing instructions.
-1
The permissible speed [min
] or the circumferential speed
[m/s] of the abrasive tools used must at least match the val-
ues given in the table.
It is therefore important to observe the permissible rota-
tional/circumferential speed on the label of the abrasive
tool.
max. [mm]
D
b
115
6
125
6
115
–
125
–
75
30
Rotating the Machine Head
Only for power tools with the article number
3 603 CA2 0..:
Pull the plug out of the socket before carrying out any
u
work on the power tool.
The machine head can be turned by 180°. This allows you to
set the On/Off switch to a more favourable handling position
for special jobs, e. g., for left-handers.
– Remove the screw at securing device (20) of release
lever (1) (see Fig. A).
Bosch Power Tools
[mm]
-1
d
[min
]
[m/s]
22.2
12000
80
22.2
12000
80
–
12000
80
–
12000
80
M 14
12000
45
– Completely unscrew the 4 screws (see Fig. B). Carefully
turn the machine head to the new position without remov-
ing it from the housing. Mount and tighten the 4 screws
again.
– Screw the securing device (20) of release lever (1) back
onto the machine head (see Fig. C).
Observe the instructions under "Fitting protective equip-
ment". The protection guard may only be turned while actu-
ating the release lever (1).
Dust/Chip Extraction
The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reac-
tions and/or cause respiratory illnesses in the user or in
people in the near vicinity.
Certain dusts, such as oak or beech dust, are classified as
carcinogenic, especially in conjunction with wood treatment
additives (chromate, wood preservative). Materials contain-
ing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
Avoid dust accumulation at the workplace. Dust can
u
easily ignite.
Operation
Start-up
Pay attention to the mains voltage. The voltage of the
u
power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
When operating the power tool using a mobile generator that
does not have sufficient reserve capacity or an adequate
voltage control system with inrush current boost converter,
loss of performance or atypical behaviour may occur upon
switch-on.
Please check the suitability of the power generator you are
using, particularly with regard to the mains voltage and fre-
quency.
Products that are only sold in AUS and NZ: Use a resid-
u
ual current device (RCD) with a nominal residual current
of 30 mA or less.
Switching on/off
To start the power tool, push the on/off switch (3) forward.
To lock the on/off switch (3) in position, push the on/off
switch (3) forward and down until it clicks into place.
To switch off the power tool, release the on/off switch (3);
or, if the switch is locked, briefly push the on/off switch (3)
backward and down and then release it.
English | 23
1 609 92A 5NX | (04.03.2020)