Global Machinery Company SA120 - Manual (Page 9)

9
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.
Attaching 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. Select the required
grade of sandpaper.
2. Match the holes in a suitable
sheet with the holes in the
base (4) and press the sheet
to the base to attach it. To
remove the sheet, peel it
away from the base.
WARNING. Do not continue to
use the sander with a sanding sheet that is over worn or
damaged.
WARNING. Do not use the same sanding sheet for wood
and metal. Metal particles become embedded in the
sandpaper and will scour a wooden surface.
WARNING. Take care to regularly clean out the build up of
dust on the base underneath the sandpaper and not to let
the sandpaper wear completely down before replacing it.
Failure to observe these two precautionary measures can
lead to damage to the hooks and loops on the base and
the sandpaper will not attach properly.
Sanding
The sander can be used for
most sanding operations
on materials such as wood,
plastic, metal and painted
surfaces.
NOTE. Wear safety goggles, a
dust mask and ear defenders.
1. 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:
2. Go back to a coarser grit and sand the marks out before
recommencing with the original choice or,
3. Try using new sandpaper of the same grit to eliminate
the unwanted marks before
progressing to a finer grit
and finishing the job.
Dust extraction
Connect a dust extraction
system or a household vacuum
cleaner to the vacuum dust
extraction adaptor (9).
GRIT CHART
GRIT TYPE
60 or less Very
Coarse
80 – 100 Coarse
120 – 150 Medium
180 – 220 Fine
240 or more Very
Fine