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Riving Knife
The riving knife (see Figure 70) is a metal
plate that prevents the freshly cut pieces of the
workpiece from pinching the backside of the blade
and causing a kickback. It also acts as a bar-
rier behind the blade to shield hands from being
pulled into the blade if a kickback occurs and the
operator is reaching behind the blade. (Reaching
behind blade is a major safety risk and should
never be done). Use riving knife for all operations.
Riving Knife
Figure 70. Riving knife location.
To ensure riving knife works safely, it MUST
be aligned with and correctly adjusted to
blade.
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 71. Always firmly tighten the hex
nut when securing the riving knife in place.
1
Figure 71. Installing riving knife on mounting
block.
Model G0764 (Mfd. Since 02/14)
2
3
Secure the riving knife so that the top of it is
1–5mm below the top level of the blade, as shown
in Figure 72.
Minimum 1mm
Maximum 5mm
Figure 72. 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 of the blade, as shown in
Figure 73.
Top Distance
Minimum 3mm
Maximum 8mm
Bottom Distance
Minimum 3mm
Maximum 8mm
Figure 73. Allowable top and bottom distances
between riving knife and blade.
Height Difference
-45-
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