DeWalt DW621 Instruction Manual page 7

To remove the cap, push it from the bottom of the
router. To re-install the cap, align the tabs
into place.
FIG. C
Collets (Fig. B)

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 (Fig. D)
Electronic Speed Control Dial
The speed of your router is FIG. D
variable. Use the
electronic speed control
dial to produce uniform
1
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 8000 rpm to 24000 rpm)
rotate the speed control wheel shown in Figure D. The
higher the number the higher the speed. Consult the table
below to help select the proper speed for your application.
14 and snap it
13
14
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.

If you are unsure of the proper speed or are experiencing
any type of problem, contact the bit manufacturer.


Adjusting the Depth of Cut
Quick Adjustment Using Rack and
Pinion Height Adjustment (Fig. C, E)
1
1. It may be necessary to remove the plastic cap
before making adjustments.
2. Unlock the plunge lock handle
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
until it hits the revolver depth stop
6. Set the quick adjuster
ring knob clockwise.
7. Adjust the depth of cut by rotating the height adjust
knob
adjustment range is indicated by the arrow.
8. Tighten the plunge limiter by turning the depth stop
bolt
TABlE A: sPEED sElECTiOn ChART
DiAl sETTing
1
2
3
4
5
6
7
WARNING: Always follow the bit manufacturer's
speed recommendations as some bit designs require
specific speeds for safety or performance.
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 WALT factory or authorized service facility
e
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.
8
to zero, by turning the inner
6
5 clockwise to the desired depth of cut. The
7 clockwise.
English
APPROX. RPM
8000
10500
13500
16500
19000
22000
24000
13
.
5 counterclockwise
.
4
5