Bosch GWX18V-8 Instrucciones De Funcionamiento Y Seguridad página 24

160992A61E 08-21 GWX18V8.qxp_GWX 9/1/21 8:29 AM Page 24
Sanding
Sanding discs range in grit from 16 (very
course) to 180 (very fine). They also vary in
size and spacing of grit.
OPEN COAT (type H) is used for soft
materials and on paint and varnish, CLOSED
COAT (type K) is used for metal, hardwood,
stone, marble and other materials. To
obtain best results, select sanding discs
carefully. Many jobs require the use of
several grit sizes and at times both open
coat and closed coat discs are required to
complete the job. See chart for application
examples.
1. Allow the tool to reach full speed before
touching the tool to the work surface.
2. Apply minimum pressure to the work
surface, allowing the tool to operate at
high speed. Sanding rate is greatest when
the tool operates at high speed.
3. Maintain a 10° to 15° angle between the
tool and work surface, (Fig. 20).
4. Continuously move the tool at a moderate
speed to avoid creating gouges in the
work surface.
5. Remove the tool from work surface
before turning tool off. Allow the tool to
stop rotating before laying it down.
Tip: Guide the disc with crisscross strokes.
Do not use a circular motion as this makes
swirl marks.
Operating Instructions
FIG. 20
Operation: Refinishing painted wood or metal surfaces.
To remove paint and to smooth
surface irregularities.
To smooth the rough sanding.
To remove scratches left by previous
discs.
To smooth surfaces for painting,
polishing or waxing.
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REMARKS GRIT
Coarse
16-24-30
Medium
36-50-80
Fine
100-120
Very Fine
150-180