Adjusting The Depth Of Cut - DeWalt DW621 Instruction Manual

Collets
WARNING: Projectile hazard. Only use bits with shanks that
match the installed collet. Smaller shank bits will not be secure and
could become loose during operation.
CAUTION: Never tighten the collet without first installing a router bit
in it. Tightening an empty collet, even by hand, can damage the collet.
This tool comes with both 1/4" (6.35 mm) and 1/2" (12.7 mm) collets. To
change collet sizes, unscrew the collet assembly, as described above.
The collet and the collet nut are connected. Do not attempt to remove
the collet from the collet nut.
Controls
ELECTRONIC SPEED CONTROL DIAL
The speed of your router is
variable. Use the electronic
speed control (K) dial to
produce uniform cutting
results in wood, plastics
and aluminum. Use the
lower settings (1-3) for
large diameter cutters and
the higher settings for small
diameter cutters. See Table
A for more information.
Your router is equipped with constant speed cutting—as you load the
router, the selected cutting speed does not slow down during normal
use. The electronic control governs the motor and gives you a consistent
finish to your work. Only under very heavy loading will the speed of the
unit fall below the governed speed.
To set the router speed (from 8,000 rpm to 24,000 rpm) rotate the speed
control wheel shown in Fig. 3. The higher the number the higher the
speed. Consult the table below to help select the proper speed for your
application.
TABLE A: SPEED SELECTION CHART
DIAL SETTING APPROX. RPM
1 8,000
2 12,000
3 14,000
4 18,000
5 21,000
6 24,000
The speeds in this chart are approximate and are for reference only. Your
router may not exactly produce the speed listed for the dial setting.
WARNING: Always follow
recommendations as some bit designs require specific speeds for safety
or performance.
If you are unsure of the proper speed or are experiencing any type of
problem, contact the bit manufacturer.
WARNING: Do not operate tools rated "AC only" on a DC
supply. Loss of speed control may result, causing tool damage and
possible hazard to the operator.
WARNING: If the speed control ceases to operate, or is intermittent,
stop using the tool immediately. Take it to a D
service facility for repair.
NOTICE: The router is equipped with electronics to monitor and
maintain the speed of the tool while cutting. In low and medium speed
operation, the speed control prevents the motor speed from decreasing.
If you expect to hear a speed change and continue to load the motor,
you could damage the motor by overheating. Reduce the depth of cut
and/or slow the feed rate to prevent tool damage.

Adjusting the Depth of Cut

QUICK ADJUSTMENT USING RACK AND PINION HEIGHT
ADJUSTMENT (FIG. 5)
1. It may be necessary to remove the plastic cap before making
adjustments.
2. Unlock the plunge lock handle (H).
3. Lower the router carriage until the cutter is in contact with the
workpiece
4. Tighten the plunge lock handle by turning it clockwise.
5. Turn the height adjustment knob (E) counterclockwise until it hits the
revolver depth stop (J).
6. Set the quick adjuster (G) to zero, by turning the inner ring knob
clockwise.
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the bit manufacturer's speed
WALT factory or authorized
e