Bosch 0 603 3B5 100 Original Instructions Manual page 17

Selecting the abrasive tool
Choose the abrasive tool based on the surface shape and
material you want to sand. Select an appropriate grit for the
required material removal rate.
Application Surface shape
Sanding wood straight
Removing paint
(wood)
curved
heavily contoured
Gaps (grooves,
louvres, tongue-
and-groove joints)
Texturing wood straight
curved
Abrading paint straight
(wood)
Grinding metal straight
(e.g. steel, alu-
minium, brass)
curved
Removing rust straight
from metals
curved
Polishing/texturing straight
metal
curved
Removing paint straight
(metal)
Working Advice
The material removal rate and surface quality are primarily
determined by the choice of abrasive tool, the pre-selected
speed setting and the contact pressure.
Bosch Power Tools
Only immaculate abrasive tools will deliver good grinding
performance and protect the power tool.
Use only original Bosch-sanding accessories.
Preselecting the speed
Abrasive tool You can preselect the required speed using the thumbwheel
for speed preselection (7), even during operation.
Sanding sleeve
If the final setting of "6" is reached, the thumbwheel audibly
Conical sanding
engages.
sleeve
1 − 2 low speed
Flap wheel
3 − 4 medium speed
(60 mm)
5 − 6 high speed
Flexible roller
The required speed depends on the material and the work-
(60 mm/15 mm)
ing conditions; it can be ascertained through practical tests.
The figures in the table below are recommended values.
Nylon brush
Application
Flap wheel
(60 mm)
Abrading paint
Flap wheel
Removing paint
(10 mm/5 mm)
Softwood
Nylon brush
Hardwood
Veneer
Sanding sleeve
Aluminium
Grinding steel
Conical sanding
sleeve
Removing rust from
steel
Flap wheel
(60 mm)
Stainless steel
Sanding sleeve
Stone
After working at a low speed for an extended period, you
Conical sanding
should operate the power tool at the maximum speed
sleeve
without load for approx. three minutes to cool it down.
Sanding fleece
Sanding
Flap wheel
– Switch the power tool on, place the entire sanding sur-
(60 mm)
face against the surface of the workpiece and apply mod-
Nylon brush
erate pressure as you move the sander over the work-
piece.
Cleaning disc
– Be sure to apply consistent contact pressure, in order to
Brass-coated
increase the service life of the abrasive tools. An excess-
metal brush
ive increase of the sanding pressure does not lead to an
Cleaning disc
increase of the sanding capacity, but to increased wear of
the power tool and the abrasive tool.
Brass-coated
– Do not use an abrasive tool for other materials after it has
metal brush
been used to work on metal.
Nylon brush
Sanding fleece
Maintenance and Service
Nylon brush
Maintenance and Cleaning
Cleaning disc
Pull the plug out of the socket before carrying out any
u
work on the power tool.
To ensure safe and efficient operation, always keep
u
the power tool and the ventilation slots clean.
In order to avoid safety hazards, if the power supply cord
needs to be replaced, this must be done by Bosch or by an
English | 17
Grit (coarse/fine Speed
sanding) setting
120/240 2/3
80/− 5
80/240 5/6
80/240 5/6
120/240 2 − 4
80/240 4/5
80/240 3 − 5
80/20 4 − 6
80/240 3 − 5
80/240 5/6
1 609 92A 4M6 | (21.08.2019)