Grizzly G0493 - Manual (Page 40)

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Model g0493 (Mfg. since 7/10)
non-through &
through cuts
Examples of non-through cuts include dadoes
and rabbets. Non-through cuts have a higher risk
of injury from kickback because the blade guard
must be removed. However, the riving knife MUST
be installed because it still provides some protec-
tion. When making non-through cuts with a dado
blade, do not attempt to cut the full depth in one
pass. Instead, take multiple light passes to reduce
the load on the blade. A dado blade smaller than
10" will require removal of the riving knife, because
the riving knife will be higher than the blade.
non-through cuts
figure 64. example of a non-through cut.
A non-through cut is a sawing operation where
the blade does not protrude above the top face of
the wood stock, as shown in the
Figure below.
figure 65. example of a through cut (blade
guard not shown for illustrative clarity).
through cuts
A through cut is a sawing operation in which the
workpiece is completely sawn through, as shown
in the
Figure below. Examples of through cuts are
rip cuts, cross cuts, miter cuts, and beveled cuts.
The blade guard assembly MUST be used when
performing through cuts.
Workpiece
inspection
some workpieces are not safe to cut on this
machine or may need to be modified before they
can be safely cut.
before cutting, inspect all
workpieces for the following:
• Material Type: This machine is intended for
cutting natural and man-made wood prod-
ucts, laminate covered wood products, and
some plastics. Cutting drywall or cementitious
backer board creates extremely fine dust and
may reduce the life of the motor bearings.
This machine is NOT designed to cut metal,
glass, stone, tile, etc.; cutting these materials
with a table saw greatly increases the risk of
injury and damage to the saw or blade.
• Foreign Objects: Nails, staples, dirt, rocks
and other foreign objects are often embed-
ded in wood. While cutting, these objects
can become dislodged and hit the operator,
cause kickback, or break the blade, which
might then fly apart. Always visually inspect
your workpiece for these items. If they can’t
be removed, DO NOT cut the workpiece.
• Large/Loose Knots: Loose knots can
become dislodged during the cutting opera-
tion. Large knots can cause kickback and
machine damage. Choose workpieces that
do not have large/loose knots or plan ahead
to avoid cutting through them.
• Wet or “Green” Stock: Cutting wood with a
moisture content over 20% causes unneces-
sary wear on the blades, increases the risk of
kickback, and yields poor results.
• Excessive Warping: Workpieces with exces-
sive cupping, bowing, or twisting are danger-
ous to cut because they are unstable and
may move unpredictably when being cut.
• Minor Warping: Slightly cupped workpieces
can be safely supported with cupped side
facing the table or fence; however, work-
pieces supported on the bowed side will rock
during the cut, which could cause kickback.