Starting Operation - Bosch PVS 300 AE Manual Original

– Adjust the belt tracking with the adjustment
knob 5 (also see the arrows impressed on the
adjustment knob):
Rotational direction Belt tracking
In clockwise
direction
(toward the rear)
In anticlockwise
direction
(toward the front)
Note: Turn the adjustment knob 5 slowly and ob-
serve the reaction of the sanding belt before con-
tinuing with the adjustment.
The belt tracking is properly adjusted when the
sanding belt runs flush to the edge of the sliding
shoe.
Selecting the Sanding Belt
Depending on the material to be worked and the
required rate of removal, different sanding belts
are available:
Red: Wood
For working wooden
materials
For coarse-sanding, e. g.
of rough, unplaned beams
and boards
For face sanding and plan-
ing small irregularities
For finish and fine sanding
of hard woods
Blue: Metal
For working metal
materials
For removal of scales and
rust, as well as for sand-
ing out small irregularities coarse
For deburring and gloss-
ing steel sheet and pre-
formed parts
For precision and struc-
tural sanding
Bosch Power Tools
Away from the adjust-
ment knob
(toward the right)
Toward the adjust-
ment knob
(toward the left)
Grain size
coarse 40, 60
medium 80, 120
fine 180, 240
Grain size
60
medium 80, 120
fine 180, 240
Operation

Starting Operation

Observe correct mains voltage! The voltage
of the power 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.
Switching On and Off
– To start the machine, push the On/Off switch
3 towards the front to "I".
– To switch off the machine, push the On/Off
switch 3 towards the rear to "0".
Preselecting the Belt Speed
The required belt speed depends on the material
being sanded and on the working conditions, and
can be determined by practical testing.
– Set the thumbwheel 2 to the requested belt
speed.
Note: The belt speed can also be readjusted dur-
ing operation.
Operating Instructions
The sanding removal rate and the surface quality
are mainly determined by the selection of the
sanding belt as well as by the preselected belt
speed . The higher the belt speed, the more ma-
terial is removed and the finer the sanded sur-
face.
Only flawless sanding belts achieve good sanding
capacity and make the machine last longer.
A sanding belt used for sanding metal should not
be used for other materials.
Use only original Bosch sanding accessories.
English | 21
1 609 929 M21 | (22/8/07)