Riving Knife - Grizzly G0820 Owner's Manual

Once the splitter/riving knife is properly positioned
at the correct distance from the blade, verify that
it is aligned with the blade by checking the align-
ment with a straightedge in the top and bottom
locations shown in Figure 72.
Bottom Alignment
Figure 72. Checking top and bottom splitter/
riving knife alignment with blade.
The splitter/riving knife should be parallel with the
blade along its length at both positions and should
be in the "Alignment Zone" shown in Figure 73.
Spreader or

Riving Knife

Blade
Figure 73. Verifying that splitter/riving knife is in
the alignment zone behind the blade.
If the splitter/riving knife is not aligned or parallel
with the blade, refer to Riving Knife Mounting
Block on Page 78.
-42-
Top Alignment
Alignment
Zone
Straightedge
Riving Knife
The riving knife works in the same manner as the
splitter/riving knife on the blade guard assembly.
It is a metal plate that prevents the newly cut
workpiece from pinching the backside of the blade
and causing kickback.
The key difference between the splitter/riving knife
and the riving knife is that the riving knife mounts
below the blade's highest point of rotation, as
shown in Figure 74, so that it can remain installed
for non-through cuts.
Minimum 1mm
Maximum 5mm
Figure 74. Height difference between riving knife
and blade.
Similar to the splitter/riving knife, the riving knife
acts as a barrier behind the blade to reduce the
risk of hands being pulled into the blade if kick-
back occurs.
The riving knife must be kept within the range
shown in Figure 75. For that reason, a 12" blade
is required for operations that use a riving knife.
Top Distance
Minimum 3mm
Maximum 8mm
Bottom Distance
Minimum 3mm
Maximum 8mm
Figure 75. Allowable top and bottom distances
between riving knife and blade.
Model G0820 (Mfd. Since 12/16)
Height Difference