Workpiece Inspection; Blade Requirements; Blade Selection - Grizzly G0690 Owner's Manual

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.
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Blade Requirements

The riving knife included with this machine is 0.1"
(2.5mm) thick and is only designed for 10" diam-
eter blades.
When choosing a main blade, make sure the
blade size meets the requirements listed below.
The thickness of the blade body and teeth can be
measured with calipers or any precision measur-
ing device.
Blade Size Requirements:
• Body Thickness: 0.071"-0.094" (1.8-2.4mm)
• Kerf (Tooth) Thickness: 0.102"-0.126"
(2.6-3.2mm)

Blade Selection

This section on blade selection is by no means
comprehensive. Always follow the saw blade
manufacturer's recommendations to ensure safe
and efficient operation of your table saw.
Ripping Blade Features:
• Best for cutting with the grain
• 20-40 teeth
• Flat-top ground tooth profile
• Large gullets for large chip removal
Figure 43. Ripping blade.
Model G0690/G0691 (Mfd. 6/15+)
Flat
Top
Blade