DeWalt DWE7470 Instruction Manual Page 47

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45
English
Saw Blades (Fig. 28)
WARNING: Riving knifes must be matched to saw blade dimensions in order to function
effectively. See Riving Knife Selection.
NOTE: THIS SAW IS INTENDED FOR USE
FIG. 28
ONLY WITH SAW BLADES 10" (254mm) IN
DIAMETER. See Fig. 28.
NOTE: This saw is not intended for use with
dado blades and molding cutters. Personal
injury may occur.
1. The saw blade furnished with your new
saw is a 10" (254 mm) combination blade,
used for crosscutting (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 (.625"). 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.
CAUTION: Abrasive wheels or blades (including diamond) should not be used on this saw.
Riving Knife Selection (Fig. 29, 30)
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 Figure 29. If it is
not, the riving knife MUST be replaced with one that has the correct thickness.
FIG. 30
RIVING KNIFE
THICKNESS
KERF WIDTH
(WIDTH OF CUT
MADE BY THE
BLADE)
BODY (OR PLATE)
THICKNESS OF
THE BLADE
FIG. 29
The riving knife provided with this saw is marked as follows (Fig.30):
0.09" (2.3mm) THICK RIVING KNIFE. ONLY USE FOR 10" (254mm) Ø BLADE WITH
0.09" (2.3mm) MIN. KERF WIDTH AND 0.067" (1.75mm) MAX. BODY THICKNESS.
D
EWALT blade body thickness and kerf widths are 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
FIG. 31
measure the kerf width.
3. Select the riving knife as shown in Figure 31.
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.
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:
1. ALWAYS wear proper eye, hearing and respiratory equipment.
2. Blade is tight.
3. Bevel angle and height lock knobs are tight.
4. If ripping, ensure fence lock lever is tight and fence is parallel to the blade.
5. If crosscutting, miter gauge knob is tight.
6. The blade guard assembly is properly attached and the anti-kickback assembly is
functioning.
7. ALWAYS inspect the blade guard assembly and riving knife for proper alignment,
operation and clearance with saw blade.
8. ALWAYS make sure both guards are in the down position in contact with the table
before operating.
Failure to adhere to these common safety rules can greatly increase the likelihood of injury.
WARNING: To reduce the risk of injury, turn unit off and disconnect machine from
power source before installing and removing accessories, before adjusting or changing set-
ups or when making repairs. An accidental start-up can cause injury.
WARNING: Before connecting the table saw to the power source or operating the saw,
always inspect the blade guard assembly and riving knife for proper operation alignment and
clearance with saw blade. Personal injury may result.
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