Model G9983 (Mfg. Since 8/09)
-25-
the platen position allows for 3 types of opera-
tion. these different positions can be adjusted by
rotating the knob shown in
figure 21. notice that
the knob has a scale on it. by keeping track of
how many revolutions you have rotated the knob,
you can determine how far you have moved the
platen.
figure 21. the scale on this knob tells you how
far you have moved the platen.
the three basic platen positions:
platen up: the platen is raised above the level of
the sanding rollers. this position allows the front
roller to remove large amounts of material quickly,
but leaves a rough finish. the best belt grit for this
position is #100 or coarser.
platen even: the platen is set even with the
sanding rollers. the rollers work together with the
platen to produce intermediate/final finishing. the
best belt grit for this position is #100-#180.
platen down: the platen is lowered below
the sanding rollers. the majority of the work is
accomplished by the platen pressure on the work-
piece. the result is a smooth, flat finish. the best
belt grit for this position is #180 or finer.
note: Avoid Lowering the platen more than .2MM
below the sanding belt rollers—this is the equiva-
lent to 1 full turn of the knob.
platen depth
Summary of Contents for G9983
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