Starting Operation; Working Advice; Maintenance And Service; Maintenance And Cleaning - Bosch PBS 75 A Notice Originale

14 | English
Selecting the Sanding Belt
Depending on the material to be worked and the required rate
of removal, different sanding belts are available:
For the working of all wooden
materials
For coarse-sanding, e. g. of rough,
unplaned beams and boards
For face sanding and planing small
irregularities
For finish and fine sanding of hard
woods
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.
Switching On and Off
To start the machine, press the On/Off switch 5 and keep it
pressed.
To lock the pressed On/Off switch 5, press the lock-on button
7.
To switch off the machine, release the On/Off switch 5 or
when it is locked with the lock-on button 7, briefly press the
On/Off switch 5 and then release it.
When not using the power tool, switch it off in order to save
energy.
Preselecting the Belt Speed (PBS 75 AE)
The necessary belt speed can be preselected with the thum-
bwheel 4, even during operation.
The required belt speed depends on the material being sand-
ed and on the working conditions, and can be determined by
practical testing.

Working Advice

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 (PBS 75 AE). The higher the belt
speed, the more material is removed and the finer the sanded
surface.
Only flawless sanding belts achieve good sanding capacity
and make the machine last longer.
Work using the least possible sanding pressure in order to in-
crease the service life of the sanding belts. The machine's own
weight is sufficient for a good sanding performance. An exces-
sive increase of the sanding pressure does not lead to an in-
crease of the sanding capacity, but to increased wear of the
machine and the sanding belt.
1 619 X07 388 | (19.3.12)
Grain size
40—240
coarse 40, 60
medium 80, 100, 120
fine 180, 240
Apply the machine to the workpiece only when switched on.
Work with moderate feed and carry out the sanding with par-
allel and overlapping strokes. Sand in the direction of the
grain; sanding across the grain produces an uneven sanding
effect.
Particularly when sanding coats of varnish, sand in the direc-
tion of the grain as the varnish could melt and smear the sur-
face of the workpiece and the sanding belt. Therefore, work
with dust extraction.
A sanding belt used for sanding metal should not be used for
other materials.
Use only original Bosch sanding accessories.
Store sanding belts only hanging; avoid creasing, as this
makes the belts unusable.
The sanding frame (accessory) allows for uniform and con-
trollable removal capacity when surface grinding larger wood-
en surfaces.

Maintenance and Service

Maintenance and Cleaning

Before any work on the machine itself, pull the mains
plug.
For safe and proper working, always keep the machine
and ventilation slots clean.
Remove adherent sanding dust with a brush.
Cleaning the Dust Passage (see figure E)
From time to time, remove the protection cover 14 and clean
the dust passage 15 so that the suction capacity remains at an
optimum level.
If the replacement of the supply cord is necessary, this has to
be done by Bosch or an authorized Bosch service agent in or-
der to avoid a safety hazard.
If the machine should fail despite the care taken in manufac-
turing and testing procedures, repair should be carried out by
an after-sales service centre for Bosch power tools.
In all correspondence and spare parts order, please always in-
clude the 10-digit article number given on the type plate of
the machine.
After-sales Service and Customer Assistance
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
www.bosch-pt.com
Our customer service representatives can answer your ques-
tions concerning possible applications and adjustment of
products and accessories.
Bosch Power Tools