Depth Of Cut; Variable Speed - Grizzly G0449 Owner's Manual

Depth of Cut

The optimum depth of cut will vary based on
the type of wood, feed rate, and sandpaper grit.
Under most sanding conditions, the depth should
not exceed ⁄ " (approx.
1
64
Each full turn of the table height handwheel raises
the conveyor table approximately 0.020". Attempts
to remove too much material can cause jamming,
wood burning, rapid paper wear or tearing, poor
finish and belt slippage.
To set the depth of cut:
1. Rotate the table height handle (Figure 23)
until the table is too low, then raise the table,
allowing a gap between the workpiece and
the sanding drum.
Note: When adjusting the table to sand a
thicker workpiece, lower and then raise the
table to remove backlash from the adjust-
ment mechanism.
Figure 23. Table height handwheel.
2.
Start the conveyor and sanding drums and
feed the workpiece into the sander. SLOWLY
raise the conveyor table until the workpiece
makes light contact with the sanding drums.
This is the correct height to begin sanding the
workpiece.
-24-
⁄ turn of the handwheel).
3
4

Variable Speed

The variable speed knob allows you to increase
the feed rate from 6–18 FPM. The correct speed
to use depends on the type of stock you are using
(hardwood vs. softwood) and the stage of finish
you are at 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.
Use trial-and-error to determine the best settings
for your specific applications.
To adjust the conveyor speed:
1.
Start the conveyor (DO NOT adjust conveyor
speed when the conveyor motor is OFF).
NOTICE
Adjusting the variable speed when the con-
veyor motor is OFF can damage the V-belt
and the adjusting mechanism.
2.
Turn the knurled collar clockwise to release
the variable speed knob (Figure 24), then
rotate the knob counterclockwise to increase
the feed speed or clockwise to decrease the
feed speed.
Knurled Collar
Figure 24. Variable speed knob.
G0449/G0450 37" Drum Sander
Variable
Speed Knob