Grizzly G0771Z Manual page 37

Similar to the spreader, the riving knife acts as
a barrier behind the blade to reduce the risk of
hands being pulled into the blade if kickback
occurs.
When used as a riving knife, the spreader/riv-
ing knife must be kept within the range shown in
Figure 52. For that reason, a 10" blade is required
for operations that use a riving knife.
Top Distance
Minimum 3mm
Maximum 8mm
Bottom Distance
Minimum 3mm
Maximum 8mm
Figure 52. Example of allowable top and bottom
distances between riving knife and blade.
To install riving knife:
1.
DISCONNECT SAW FROM POWER!
Remove table insert, but leave Phillips head
2.
screws mounted in table throat.
Note: Table insert is held in place by magnet.
Raise blade all the way up.
3.
Insert upper set of holes on spreader/riving
4.
knife into bracket slot and tighten lock lever to
secure spreader/riving knife (see Figure 53).
Spreader/
Riving Knife
Bracket Slot
Figure 53. Lock lever used to secure spreader.
-34-
5.
6.
When to Use the Riving Knife
Use the riving knife for all non-through cuts made
with a standard table saw blade (i.e., dadoes or
rabbet cuts, and when using a tenoning jig), or
when using a 10" diameter dado blade.
Also, use the riving knife for those special opera-
tions where the blade guard or its components
get in the way of safe operation, such as with very
narrow cuts.
When Not to Use the Riving Knife
Do not use the riving knife with a dado blade
that has a diameter smaller than 10" in diameter.
Otherwise, the riving knife height will exceed the
blade height and the workpiece will hit the riving
knife during the cut, forcing the operator into a
dangerous situation of trying to turn the saw off
with the workpiece stuck halfway through the cut.
In addition, although it is possible to use the riv-
ing knife for through cutting operations, the blade
guard assembly offers far more injury protection
and risk reduction than the riving knife. Therefore,
we strongly recommend that you use the blade
guard assembly for through cuts.
Upper Holes
Lock Lever
To ensure that the riving knife works safe-
ly, it MUST be aligned with and correctly
adjusted to the blade. Refer to Page 64 to
check or adjust the riving knife alignment.
Re-install table insert (refer to Page 70).
Tug upward on top of spreader/riving knife to
verify it is locked.
Model G0771Z (Mfd. Since 01/21)