Dewalt DWE7480 Instruction Manual - Page 10

English 3. If needed, raise the riving knife (FF) to the thru cut (ZZ) or highest position. Refer to Positioning the Riving Knife under Assembly. 4. Locate the three small set screws (A2) adjacent to the riving knife lock knob (YY). These screws will be used to adjust the riving knife position. 5. Lay a straight edge on the table against two blade tips. The riving knife should not touch the straight edge. If needed, loosen the two larger lock screws (A3). 6. Adjust the small set screws (A2) to move the riving knife according to the position noted in step 5. Lay the straight edge on the opposite side of the blade and repeat adjustments as needed. 7. Lightly tighten the two larger lock screws (A3). 8. Place a square flat against the riving knife to the verify riving knife is vertical and in line with the blade. 9. If needed, use the set screws to bring the riving knife vertical with the square. 10. Repeat steps 5 and 6 to verify position of riving knife. 11. Fully tighten the two larger lock screws (A3). FIG. 25 A2 FF A1 ZZ YY A3 Saw Blades WARNING: Riving knifes must be matched to saw blade dimensions in order to function effectively. Refer to Riving Knife Selection. NOTE: THIS SAW IS INTENDED FOR USE FIG. 26 ONLY WITH SAW BLADES 10" (254 mm) IN DIAMETER. Refer to Fig. 26. 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 crosscut 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. Blade (Fig. 3, 6, 27, 28) FIG. 27 REPLACING THE BLADE C 1. Raise the saw blade arbor to its maximum height by turning the blade height adjustment wheel (I) clockwise. Y 2. If replacing the blade, remove the blade guard assembly (D) and throat plate (X) prior to installing the new blade. (Refer to To Remove the Blade Guard Assembly and To Remove the Throat Plate under Assembly.) NOTE: It may be easier to change the blade with the saw blade beveled to 0˚. 3. Remove the arbor nut (Y) and outer Z washer (Z) and set aside. 4. Place the blade (C) on the arbor making sure the teeth of the blade point downward and toward the front of the saw. 5. Place the outer washer (Z) against the blade, raised FIG. 28 side out and tighten the arbor nut against the washer as far as possible by hand. Ensure that the outer washer and arbor nut are free of dust and debris before installing. 6. To further tighten the arbor nut (Y), use the open ended spindle wrench (supplied) to keep the spindle from rotating. 7. Use the arbor wrench (supplied) to hold the nut and tighten it by turning it clockwise. Reposition the wrench on the arbor nut and repeat as necessary Y until the nut and washer are securely fastened against the blade). NOTE: Different types of blades make different kerfs (width of cuts). Therefore, it is necessary to check adjustment of rip scale when changing blades. Replacement blade MUST not exceed the thickness stated on the riving knife. The riving knife provided with the saw is 2.2 mm thick. Riving Knife Selection WARNING: To minimize the risk of kickback and to ensure 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 (plate) thickness and the blade kerf (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. The riving knife provided with this saw is marked as follows (Fig. 30): 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 accessory marketed by DEWALT is marked as follows: 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 10