Sanding Surfaces - Ratio PRO XF20-E Manual De Instrucciones

4. HAND GRIP AREA (SEE FIG. J)
Your sander is designed to be held by the top of
the main housing.
J

5. SANDING SURFACES

Place the machine with the complete Sand paper
on the surface to be worked. Ensure uniform
sanding pressure. Less sanding pressure
increases the sanding capacity and protects
the machine and the sanding tool. The removal
capacity and the sanding pattern are determined
mainly by the selection of the Sand paper (grain
size), the speed of the sanding plate and the
application pressure.
Rough sanding
Attach a Sand paper with coarse grain. Apply
only light sanding pressure to achieve increased
material removal.
Fine sanding
Attach a Sand paper with fine grain. With
moderate pressure, move the machine in a
circular pattern or alternately in lengthwise and
crosswise directions over the workpiece. 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 workpiece.
6. ORBITAL SANDING
Guide your sander parallel to the working surface
and move it in circles or in a cross pattern. Do
not tilt the tool in order to avoid deep unwanted
sanding marks. The amount of material removed
is determined by the speed of the sanding disc
and the grit size used. The speed of the sanding
disc diminishes relative to the pressure applied
to the tool. For faster removal, do not increase
pressure on the tool, but use a coarser grit size.
7. SELECTING THE RIGHT GRADE OF
SANDPAPER
— Different grades of sanding paper can be
40
purchased from good DIY shops. Available
grades are Coarse, Medium and Fine.
— Use coarse grits to sand down rough finishes,
medium grit to smooth the work and fine grit to
finish off.
— The higher the grade number, the finer the
grit. For rough work start with a low grade of grit.
(e.g. 60 grit) and change to a higher, finer grade
(e.g. 120 grit) for finishing. If you use a fine grade
for rough surfaces it will soon clog and need
changing.
— It is best to make a trial run on a scrap piece
of material to determine the optimum grades of
sandpaper for a particular job.
8. POLISH
The polish can be used for polishing the surface
with weathered paint or buffing out scratches.
When polishing, select the "1" level. (See Fig. I).
NOTE: Do not overheat the surface.
Spread about a tablespoonful of polish evenly
over the entire surface of the polishing pad. Do
not apply polish directly onto a somewhat smaller
surface than you intend to polish. This first
application should do about 1/3 of an average
size surface applying it crosswise or with circular
motion and moderate pressure. For the second
and third applications of polish, repeat as above.
The pad cover will not adsorb as much when
reloading.
Do not allow the polishing pad to dry out on
the surface, otherwise the surface can become
damaged. Do not subject the surface to direct
sunlight.
Clean the polishing pad regularly to keep good
polishing results. Wash out polishing bonnet with
a mild detergent and warm water.
WORKING HINTS FOR
YOUR SANDER
If your power tool becomes too hot, especially
when used at low speed, set the speed to
maximum and run it with no load for 2-3 minutes
to cool the motor. Avoid prolonged usage at
very low speeds. Always use sand paper that is
suitable for the material you want to sand.
Always ensure the work-piece is firmly held or
clamped to prevent movement.
Any movement of the material may affect the
quality of the sanding finish.