Grizzly G0771Z Manual page 41

Dado blades have a higher risk of kickback
than normal blades because their larger size
applies stronger forces to the workpiece.
This risk increases relative to the depth and
width of the cut. To minimize your risk of
serious personal injury, ensure that stock
is flat and straight, and make multiple light
cuts (rather than one deep cut) to achieve
the desired cutting depth.
The Figure below demonstrates the sequential
process of making multiple, light cuts that get
progressively deeper. The actual number of cuts
used should be determined by workpiece hard-
ness, total dado depth, and feed rate. In general, if
you hear the motor slow down during the cut, you
are cutting too deep or feeding too fast.
Dado Blade
Cut 1
Workpiece
Cut 2
Workpiece
Cut 3
Workpiece
Finished
Dado Cut
Workpiece
Figure 59. Example of dado being cut with
multiple light cuts, instead of one deep cut.
-38-
To cut a dado with a dado blade:
1.
DISCONNECT SAW FROM POWER!
2.
Adjust dado blade to desired depth of cut.
Adjust distance between fence and inside
3.
edge of blade, as shown in Figure 58 on
Page 37, to dado length of a workpiece.
—
4.
Reconnect saw to power source.
5. Turn saw ON. Blade should run smoothly,
with no vibrations.
6.
When blade has reached full speed, perform
test cut with scrap piece of wood.
Fence
7.
If cut is satisfactory, repeat cut with actual
workpiece.
Cutting Dadoes with a Standard
Blade
Fence
A ripping blade (described on Page 28) is typically
the best blade to use when cutting dadoes with a
standard blade because it removes sawdust very
efficiently.
Fence To use a standard saw blade to cut dadoes:
1.
DISCONNECT SAW FROM POWER!
Mark width of dado cut on workpiece. Include
2.
marks on edge of workpiece so cut path can
Fence
be aligned when workpiece is lying on table.
Raise blade up to desired depth of cut (depth
3.
of dado channel desired).
Set saw up for type of cut you need to make,
4.
depending on whether it is a rip cut (Page 35)
or crosscut (Page 36).
If dadoing across workpiece, use miter
gauge and carefully line up desired cut
with dado blade. To reduce kickback, DO
NOT use fence in combination with miter
gauge.
Model G0771Z (Mfd. Since 01/21)