Collets; Electronic Speed Control Dial - DeWalt DW621 Instruction Manual

PLASTIC CAP
FIG. 2
FIG. 4
FINE
ADJUSTMENT
KNOB
0.
PLUNGE LOCK
HANDLE
DEPTH STOP
LOCKING BOLT

Collets

TABS
that match the installed collet. Smaller shank bits will not be
secure and could become loose during operation.
FIG. 3
bit in it. Tightening an empty collet, even by hand, can damage the
collet.
SPEED
This tool comes with both 1/4" (6.35 mm) and 1/2" (12.7 mm)
CONTROL
collets. To change collet sizes, unscrew the collet assembly, as
DIAL
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 (Fig. 3) 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.
QUICK
To set the router speed (from 8,000 rpm to 24,000 rpm) rotate the
ADJUSTER
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.
HEIGHT ADJUSTMENT
KNOB
7
WARNING: Projectile hazard. Only use bits with shanks
CAUTION: Never tighten the collet without first installing a router