Grizzly G0623X3 - Manual (Page 40)

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Model G0623X/G0623X3 (Mfg. Since 5/12)
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.
Height Difference
Minimum 1mm
Maximum 5mm
figure 58. height difference between riving knife
and blade.
Minimum 3mm
Top Distance
Bottom Distance
Maximum 8mm
Minimum 3mm
Maximum 8mm
figure 59. allowable top and bottom distances
between riving knife and blade.
riving Knife installation & removal
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.
figure 57. installing riving knife on mounting
block.
1
2
3
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.
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.
figure 60. Checking top and bottom riving knife
alignment with blade.
Top Alignment
Bottom Alignment
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.
figure 61. verifying that riving knife is in the
alignment zone behind the blade.
Alignment
Zone
Spreader or
Riving Knife
Blade
Straightedge
if the riving knife is not aligned or parallel with the
blade, refer to
adjusting riving Knife mounting
block on page 71.