DeWalt DW751 Instruction Manual page 8

DW751/385103 5/2/02 12:51 PM
FIG. 11
FIG. 12
FIG. 14
FIG. 16
Page 5
FIG. 13
FIG. 15
5
SHARPENING FIRST CUTTING LIP (
NOTE: Broken bits are more easily sharpened if they are first
roughed into shape by hand on a bench grinder. This will eliminate
unnecessary wear on the grinding wheel.
1. With motor "OFF," lower swinghead to sharpening position (Fig. 17).
2. Turn feed knob clockwise until bit is almost touching the wheel
when swinghead is rocked back and forth (Fig. 18).
NOTE: Turning feed knob clockwise feeds bit into wheel; turning
counterclockwise backs bit away from wheel.
3. Turn motor "ON," Gently rock swinghead back and forth as you
turn the feed knob clockwise. DO NOT USE HEAVY HAND
PRESSURE WHEN ROCKING THE SWINGHEAD.
IMPORTANT: Advancing the feed knob one number (e.g., 2 to
3) moves the bit 5 thousandths of an inch closer to the wheel. Each
calibration (mark) between numbers moves the bit 1 1/4 thousandths.
4. Moving the feed knob clockwise one calibration (mark) at a time,
continue to rock the swinghead across the wheel until the edge of
the bit is about 1/32" (.8 mm) from the end of the locator. BE
CAREFUL NOT TO GRIND LOCATOR.
IMPORTANT: Make a note of the final feed knob setting because
you'll need it when you sharpen the second lip.
5. Now turn feed knob counterclockwise several turns to back bit
away from grinding wheel.
6. Move swinghead down and back to rest position illustrated. Rotate
sleeve 180° clockwise until it snaps into the second index position.
(The locator will now be on the underside of the chuck.)(Fig. 19)
SHARPENING SECOND CUTTING LIP
1. Repeat steps 3 and 4 under "Sharpening first cutting lip."
2. STOP SHARPENING WHEN THE FEED KNOB REACHES THE
CALIBRATION YOU NOTED.
Figs. 17, 18, 19)