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External Vacuuming (see Fig.
(Accessory pages)
Slide the extraction adapter 18 onto the outlet piece
15 and take care that the latching lever engages. For
removal, press the latching lever in at the rear and pull
off the extraction adapter.
When sanding vertical surfaces, hold the machine so
that the extraction hose points downwards.
The vacuum cleaner must be suitable for the material
to be worked.
When vacuuming dry dust that is especially detrimen-
tal to health or carcinogenic, use a special vacuum
cleaner.
Putting into Operation
Ensure that the mains voltage is correct!
The voltage of the power source must agree with the val-
ue given on the nameplate of the machine. Machines
designated for 230 V can also be operated with 220 V.
Switching On/Off
To switch on the machine, press the on/off switch 5.
Lock the depressed on/off switch 5 by pressing the
lock-on button 4.
To switch off the machine, release the on/off switch 5
or push and then release it.
Preselect the required speed with the thumbwheel 2
(also while running).
The required speed is dependent on the material and
can be determined by practical trials.
After longer periods of working at low speed, allow the
machine to cool by running for approx. 3 minutes at
maximum speed with no load.
Bosch-Powermatic
(electronic no-load speed reducer)
The machine is equipped with a built-in
speed reducer that reduces the rota-
tional speed of the sanding plate at no
load to approx. 2000 RPM. This makes
possible the safe application to the sur-
face to be worked and gradual run-up
of the machine.
The preselected speed is attained only after the ma-
chine is pressed onto the workpiece. A change in the
adjustment knob setting is therefore not effective in no
load, but only during the working of the material surface.
2 609 932 214 • (03.02) T
)
B
English–3
Flawless functioning of the Powermatic and optimum
sanding results are already achieved with moderate ap-
plication pressure. Applying pressure that is too heavy
to the machine (e.g., up to standstill of the sanding
plate) results in overloading and reduced sanding per-
formance.
Working Instructions
Before any work on the machine itself, pull the
I
mains plug.
Auxiliary Handle
The auxiliary handle 11 makes possible comfortable
handling and optimum force application, especially for
high material removal.
The position of the auxiliary handle can be adjusted
using winged screw 12.
Sanding Surfaces
Switch on the machine, place the complete sanding
plate on the surface to be worked and move the ma-
chine over the work piece with moderate pressure.
Ensure uniform sanding pressure. Less sanding pres-
sure increases the sanding capacity and protects the
machine and the sanding tool.
The removal capacity and the sanding pattern are de-
termined mainly by the selection of the sanding sheet
(grain size), the speed of the sanding plate and the ap-
plication pressure.
Rough Sanding
Attach a sanding sheet with coarse grain (see Applica-
tion Table).
Apply only light sanding pressure to achieve increased
material removal.
Fine Sanding
Attach a sanding sheet with fine grain (see Application
Table).
With moderate pressure, move the machine in a circu-
lar pattern or alternately in lengthwise and crosswise
directions over the work piece.
Do not tilt the machine to avoid sanding through the
work piece (e.g. when sanding veneer).
After finishing the work, switch off the machine and lift
it from the work piece.
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