Grizzly G0458 - Manual (Page 22)

-20-
Model G0458 (Mfg. Since 5/11)
variable speed
the variable speed knob allows you to increase
the feed rate from 2–12 Fpm. the correct speed
to use depends on the type of stock you are using
(hardwood vs. softwood) and the stage of finish
with that workpiece.
As a general rule, a slower feed rate will sand
the surface smoother, but runs the risk of burning
the wood; a faster feed rate will remove material
faster, but runs the risk of overloading the motor
or damaging the sandpaper.
Use trial-and-error to determine the best settings
for your specific applications.
to adjust the feed belt speed:
1. turn ON the feed belt (do not adjust con-
veyor speed when the conveyor motor is
Off).
figure 19. Variable speed knob.
2. rotate the variable speed knob (figure 19)
counterclockwise to increase the feed speed,
or clockwise to decrease the feed speed.
to sand a workpiece:
1. Adjust the table height according to the
instructions in depth of cut on page 19.
2. make sure the filter bag is secure (or start
the dust collector, if connected) and turn the
sander
ON.
3. Feed the workpiece through the sander.
retrieve the workpiece by standing at the
side—not at the outfeed end.
4. run wide stock through two or three times
without adjusting the table height. turn the
stock 180° between passes to ensure an
evenly sanded surface.
sanding
adjusting the variable speed when the con-
veyor motor is Off can damage the v-belt
and the adjusting mechanism.
overloading the motor or pushing the sand-
er to failure weakens the electrical system.
repeatedly doing so is abuse to the machine
that will cause motor, capacitor, or thermal
breaker damage, which is not covered by
the warranty.
do not sand more than one board at a
time. minor variations in thickness can
cause one board to be propelled by the
rapidly spinning sanding drum and ejected
from the machine. never stand directly in
front of the outfeed area of the machine.
failure to do so could result in severe per-
sonal injury.