Grizzly g0623X Owner's Manual page 40

riving Knife installation & removal
the riving knife must be correctly installed, adjust-
ed, and aligned in order to provide the maximum
safety benefit.
the riving knife attaches to the mounting block as
shown in figure 57. always firmly tighten the hex
nut when securing the riving knife in place.
1
2
figure 57. installing riving knife on mounting
block.
secure the riving knife so that the top of it is
1–5mm below the top level of the blade, as shown
in figure 58.
Minimum 1mm
Maximum 5mm
figure 58. height difference between riving knife
and blade.
the height difference between the riving knife and
the blade allows the workpiece to pass over the
blade during non-through cuts (those in which the
blade does not cut all the way through the thick-
ness of the workpiece).
the riving knife also prevents the freshly cut sides
of the workpiece from pinching the blade and
causing kickback. for maximum effectiveness of
this safety design, the riving knife must be posi-
tioned within 3–8mm from the blade, as shown in
figure 59.
-38-
3
Height Difference
Top Distance
Minimum 3mm
Maximum 8mm
Bottom Distance
Minimum 3mm
Maximum 8mm
figure 59. allowable top and bottom distances
between riving knife and blade.
once the riving knife is properly positioned at the
correct distance from the blade, verify that it is
aligned with the blade by checking the alignment
with a straightedge in the top and bottom loca-
tions shown in figure 60.
Bottom Alignment
figure 60. Checking top and bottom riving knife
alignment with blade.
the riving knife should be parallel with the blade
along its length at both positions and should be in
the "alignment zone" shown in figure 61.
Spreader or
Riving Knife
Blade
figure 61. verifying that riving knife is in the
alignment zone behind the blade.
if the riving knife is not aligned or parallel with the
blade, refer to adjusting riving Knife mounting
block on page 71.
Model G0623X/G0623X3 (Mfg. Since 5/12)
Top Alignment
Alignment
Zone
Straightedge