DeWalt DWE7491, DWE7490 English, Saw Blades Fig, Splitter and Riving Knife Selection –28

Models: DWE7490 DWE7491

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POSITION 2 FENCE ALIGNMENT (FIG. 22, 23)

English

POSITION 2 FENCE ALIGNMENT (FIG. 22, 23)

1.To align position 2 fence locator pins, ensure position 1 pins have been aligned, refer to Position 1 Fence Alignment.

2.Loosen the position 2 locator pins, then using the blade wrench holes as a guide for positioning, align the pins (Fig. 23).

3.Tighten the locator pins (front and rear).

FIG. 23 DD

 

U

 

ALIGNING RIVING KNIFE TO BLADE (FIG. 24)

 

1.

Remove the throat plate. Refer to Remove Throat

FIG. 24

 

Plate under Assembly.

 

 

2.

Raise the blade to full depth of cut and 0° bevel

PP

 

angle.

3.

Locate the three small set screws (PP) adjacent to

 

 

the riving knife lock knob (QQ). These screws will

 

 

be used to adjust the riving knife position.

 

4.

Lay a straight edge on the table against two blade

QQ

 

tips. The riving knife should not touch the straight

 

 

edge. If needed, loosen the two larger lock screws

 

 

(RR).

 

5.

Adjust the small set screws (PP) to move the riving

 

 

knife according to the position noted in step 5. Lay

RR

 

the straight edge on the opposite side of the blade

 

 

and repeat adjustments as needed.

 

6.Lightly tighten the two larger lock screws (RR).

7.Place a square flat against the riving knife to verify the riving knife is vertical and in-line with the blade.

8.If needed, use the set screws to bring the riving knife vertical with the square.

9.Repeat steps 5 and 6 to verify position of riving knife.

10.Fully tighten the two larger lock screws (RR).

Saw Blades (Fig. 25)

ALIGNING RIVING KNIFE TO BLADE (FIG. 24) WARNING: Riving knives must be matched to saw blade dimensions in order to function effectively. Refer to Riving Knife Selection.

NOTE: THIS SAW IS INTENDED FOR USE ONLY WITH SAW BLADES 10" (254 mm) IN DIAMETER.

FIG. 25

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. This blade will produce a good quality cut for most applications.

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.

Use only saw blades designed for maximum safe operating speeds of 5,000 RPM or greater.

Saw blades should always be kept sharp. It is recommended that you locate a reputable sharpening service to sharpen your blades when needed.

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.

Plate under Assembly. CAUTION: To reduce the risk of injury, abrasive wheels or blades (including diamond) should not be used on this saw.

Splitter and Riving Knife Selection (Fig. 26–28)

Saw Blades (Fig. 25) WARNING: To minimize the risk of kickback and to ensure proper cutting, the splitter and riving knife must be the proper thickness for the blade used.

The splitter and 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 (plate) thickness and the blade kerf (cutting) width marked on the blade or on the blade packaging. The splitter and riving knife thickness must be greater than the body thickness and less than the kerf width as shown in Figure 26.

FIG. 26

RIVING KNIFE

 

THICKNESS

KERF WIDTH

(WIDTH OF CUT MADE BY THE BLADE)

BODY (OR PLATE)

THICKNESS OF THE

BLADE

8

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DeWalt DWE7491, DWE7490 English, Saw Blades Fig, Splitter and Riving Knife Selection –28, POSITION 2 FENCE ALIGNMENT