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8
Unpacking
Due to modern mass production techniques, it is unlikely
that your GMC Power Tool is faulty or that a part is
missing. If you find anything wrong, do not operate the
tool until the parts have been replaced or the fault has
been rectified. Failure to do so could result in serious
personal injury.
Switching on and off
1. With the cordset fitted to
a power outlet, switch the
sander on by pressing the “I”
mark on the protective cover
of the on/off switch (3).
2. To turn off the sander,
press the “0” mark on the
protective cover of the on/
off switch (3).
NOTE. It takes a few operations to get used to switching
the sander on and off due to the protective cover.
However, it is well worth the effort due to the protection
afforded to the switch and the consequent increased
lifetime of the unit.
Using the sander
1. The sander can be used for most sanding operations
on materials such as wood, plastic, metal and painted
surfaces.
2. Wear safety goggles, dust mask and ear muffs.
3. Switch the sander on whilst
it is resting on the workpiece. Take care to hold the
whole surface of the platen on the workpiece.
4. Move the sander over the
surface of the work in a
circular motion with an
even, moderate pressure.
CAUTION. Where possible,
clamp smaller workpieces
to the bench.
NOTE. If there are still
scratches on your work after
sanding, try either of the
following:
1. Go back to a coarser grit and sand the marks out before
recommencing with the original grit.
2. Try using new sandpaper of the same grit to eliminate
the unwanted marks before progressing to a finer grit
and finishing the job.
Selecting the right grade of sandpaper
Different grades of sanding paper
can be purchased from your local
hardware store. Available grades
are: Coarse, Medium and Fine.
Use a coarse grit to sand down
rough finishes, medium grit to
smooth the work and fine grit to
finish off.
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.
Fitting a sanding sheet
WARNING. Always ensure that the tool is switched off and
the plug is removed from the power point before making
any adjustments or maintenance procedures.
1. Before fitting sandpaper, remove any dust or debris
from the hooks and loops of the base.
GRIT CHART
GRIT TYPE
60 or less Very
Coarse
80 – 100 Coarse
120 – 150 Medium
180 – 220 Fine
240 or more Very
Fine