Global Machinery Company BS900M - Manual (Page 9)

9
Use Coarse grade to remove rough finishes, Medium grade
to smooth the work and Fine grade to finish it off. It is best
to make a trial run on a scrap piece of material to determine
the optimum grades of belt for a particular job.
In order to take full advantage of your sander, always
purchase good quality belts.
Note. After sanding with a belt sander, an orbital sander
should be used to give a better surface finish.
Sanding
1. The sander is designed for sanding wood, metal, plastic
and similar materials. It is used mainly for quickly removing
a large amount of material. Do not use this sander for
sanding magnesium.
2. Ensure that the belt is in
good condition.
3. Plug in the tool to the
power socket.
4. Bring down the sander onto
the work piece and apply
light pressure (fig.I).
5. Pull up the trigger switch (5)
and allow the belt to reach
full speed before moving it
across the work (fig.J).
6. Press the lock-on button (4) if
you require continuous operation.
7. Sand with the grain, in parallel
overlapping strokes.
8. To remove paint or smooth
very rough wood, sand
across the grain at 45º in two
directions, and then finish
parallel with the grain.
9. Use the front roller (8) only
to sand corners or irregular
shapes (fig.K).
10. Lift the sander off the work before switching off.
11. Remember to keep your hands away from the moving
belt, as it will continue to move for a short time after the
machine is switched off.
12. Wear safety goggles, a dust mask and earmuffs.
Using the sanding frame
Belt sanders are ideal for
removing lots of material quickly.
The sanding frame allows other
functions, namely:
• Controlling the depth of sanding
• Preventing the gouging of a
workpiece
• Fine finishing with the use of a fine grit belt and the frame
height adjusted for a minimal depth of sanding
To fit the sanding frame:
1. Remove the dust extraction canister.
2. Turn the sander upside down with the cordset facing you.
3. Screw the knob on the frame all the way in.
4. Fit the frame over the base of the sander taking care that
the spigot on the end of the frame knob locates into the
T-shaped groove in the body of the sander and the four
tabs on the inside of the frame locate in the corresponding
recesses in the sides of the sander.
5. Screwing the frame knob in or out causes the four tabs to
slide along the inclined slots on the sides of the sander and
adjusts the height of the frame relative to the sanding belt.
6. Refit the dust canister.
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