DeWalt DW744 Guide D'utilisation page 12

Saw Blades
WARNING: Riving knifes must be matched to saw blade
dimensions in order to function effectively. See Riving
Knife Selection.
THIS SAW IS INTENDED FOR USE ONLY WITH SAW
BLADES 10" (254 mm) IN DIAMETER. See Fig. 27.
FIG. 27
1. The saw blade furnished with your new saw is a 10"
(254 mm) combination blade, used for cross cutting
(across the grain) and ripping (with the grain) through
the material. The center hole to fit on the arbor is 5/8"
(16 mm) diameter. This blade will produce a good quality
cut for most applications.
2. There are many types of blades available to do specific
and special jobs such as cross cut only, rip only, hollow
ground, thin plywood, paneling, etc.
3. Use only saw blades designed for maximum safe
operating speeds of 5,000 RPM or greater.
4. Saw blades should always be kept sharp. It is
recommended that you locate a reputable sharpening
service to sharpen your blades when needed.
5. Never stack blades on top of one another to store. Place
material such as cardboard between them to keep the
blades from coming in contact with one another.
CAUTION: Abrasive wheels or blades (including
diamond) should not be used on this saw.
Riving Knife Selection
WARNING: To minimize the risk of kickback and to
insure proper cutting, the riving knife must be the proper
thickness for the blade used.
The riving knife supplied with this table saw is the correct
size for the blade supplied with the saw.
If a different blade is used, check the blade body, or plate,
thickness and the blade kerf, or cutting, width marked on the
blade or on the blade packaging. The riving knife thickness
must be greater than the body thickness and less than the
kerf width as shown in Fig. 28. If it is not, the riving knife
MUST be replaced with one that has the correct thickness.
RIVING KNIFE
FIG. 28
THICKNESS
KERF WIDTH
(WIDTH OF CUT
MADE BY THE
BLADE)
BODY (OR PLATE)
THICKNESS OF
THE BLADE
The riving knife provided with this saw is marked as
follows (Fig. 29):
0.087" (2.2 mm) THICK RIVING KNIFE. ONLY USE
FOR 10" (254 mm) Ø BLADE WITH 0.094" (2.4
mm) MIN. KERF WIDTH AND 0.067" (1.75 mm)
MAX. BODY THICKNESS.
The Riving knife available as an accessories marketed by
D WALT is marked as follows:
E
0.110" (2.8 mm) THICK RIVING KNIFE. ONLY
USE FOR 10" (254 mm) Ø BLADE WITH 0.118"
(3.0 mm) MIN. KERF WIDTH AND 0.098" (2.5 mm)
MAX. BODY THICKNESS
FIG. 29
10
All D WALT blade body thickness and kerf widths are
E
provided at www.dewalt.com.
If a different blade is used and the body thickness and
kerf width dimensions are not provided, use the following
procedure to determine the correct riving knife thickness:
1. Measure the body thickness of the blade.
2. Make a shallow cut in scrap material and measure the
kerf width.
3. Select the riving knife as shown in Fig. 28.
4. Slide the riving knife through the shallow cut made
in step 2 to confirm the correct riving knife has been
selected. The riving knife should not bind or drag
through the cut. (Fig. 30)
FIG. 30
IMPORTANT: If any dragging or binding of the material is
encountered as it reaches the riving knife, turn unit off and
disconnect machine from power source. Repeat steps 1–4
to make the proper riving knife selection before attempting
another cut.
Kickback
Kickback is a dangerous condition! It is caused by the
workpiece binding against the blade. The result is that the
workpiece can move rapidly in a direction opposite to the
feed direction. During kickback, the workpiece could be
thrown back at the operator. It can also drag the operator's
hand back into the blade if the operator's hand is at the
rear of the blade. If kickback occurs, turn the saw OFF and
verify the proper functioning of the riving knife, anti-kickback
assembly and blade guard assembly before resuming work.
WARNING: See Additional Safety Rules for Table Saws
and follow all warnings provided regarding KICKBACK.
OPERATION
WARNING: Before using the saw, verify the following
each and every time:
• ALWAYS wear proper eye, hearing and respiratory
equipment.