11
Operation in sander mode
Fitting the Sandpaper
Switch off the tool and disconnect it from the power
supply.
1. The GMC grinder/sander/polisher is fitted with a hook
& loop base allowing easy changing of accessories.
Ensure there are no debris
left in the hooks & loops of
the disc before fitting
accessories.
2. Align the sandpaper with the
rubber disc and press down
firmly to ensure a good grip.
3. Special care must be taken
with Hook & Loop platens, as
a build up of dust, or
wearing the sandpaper down completely before
changing it, can result in damage to the hooks & loops
on the platen and require a new platen to be fitted.
Note: Hook & Loop platens are not a warranty item.
Selecting the right grade of sandpaper
1. Different grades of sandpaper can be purchased from
your local hardware store.
2. Typical grades are coarse (40–60 grit), medium
(80–100 grit), and fine (120–240 grit).
3. Use coarse grade to remove rough finishes, medium
grade to smooth the work, and fine grade to finish it
off.
4. 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.
Switching on and off
1. To start the tool, first ensure the rubber disc, sanding
disc and tool are in good condition. Plug the cordset
into the mains socket.
2. To start the tool, depress the lock-off button (8) and
squeeze the on/off trigger switch (7).
Note. Once the tool has started there is no need to
maintain pressure on the lock-off button.
3. Do not overload the tool so that the disc slows down.
Let the tool do the work rather than applying pressure.
The weight of the tool alone provides sufficient
pressure.
4. After completing the application, turn the sander off.
To turn the tool off let go of the on/off trigger switch
(7). The lock-off button (8) will re-engage.
The tool will stop. (Please note that the disc continues
to spin for a few seconds even though the switch is
turned off). Keep hands well away from the moving
disc. Wait until the disc stops rotating before lifting the
grinder/sander/polisher from the surface.
Holding and guiding the tool
1. Always clamp the work piece where applicable.
2. Before starting the tool, first ensure the rubber disc,
sanding disc and the tool are in good condition. Plug
the cordset into the mains socket.
3. Do not overload the tool so that the disc slows down.
Let the tool do the work rather than applying pressure.
The weight of the tool alone provides sufficient
pressure.
4. Hold the tool securely and make sure that you have full
control at all times.
5. During the sanding operation, maintain an angle of
10–15 degrees between the tool and the work piece.