5
RECOMMENDATION
Please set the cutting tools to minimize the overhang amount. 13mm is the maximum amount of
overhang to maintain high accuracy and safety.
7
. CHANGING THE TOOL
CAUTION
Do not tighten the collet chuck without inserting a tool or dummy bur, as this will damage the
collet chuck, spindle or chuck nut, causing difficulty removing the collet chuck.
14
12
14
12
Chuck Nut
Spindle Shaft
Tool
Loosen
Tighten
①
Set the provided 12mm wrench on the spindle.
②
Place the provided 14mm wrench on the chuck nut
and turn it counterclockwise to loosen the collet chuck
and remove the tool. (The first turn will loosen the
chuck nut, but the tool will not release and turning will
become stiff. Keep turning through the stiffness and
the collet chuck will open.)
③
Clean the collet chuck and chuck nut, then insert
the new tool and tighten the collet chuck by turning
clockwise. Do not overtighten.
Fig. 3
8. REPLACING THE COLLET CHUCK
①
Remove the tool according to the section
" 7. CHANGING THE TOOL " procedure above
and remove chuck nut assembly (Fig. 4).
②
The collet chuck and chuck nut are secured
by a groove in the collet chuck and a flange in
the chuck nut. To remove the collet chuck hold
the chuck nut in one hand and push diagonally
down on the collet chuck. The collet chuck
should be released (Fig. 5).
③
To install the collet chuck, hold the collet chuck
at a slight angle, and insert it into the chuck nut
(Fig. 6).
Press the collet chuck in the chuck nut by
positioning the collet chuck in the chuck nut and
pressing down on flat surface (Fig. 5).
Be sure to fully engage the latch inside the
chuck nut into the groove on the collet chucks
outer circumference area (Fig. 7).
14
12
Chuck Nut
Spindle Shaft
Tool
Wrench Seat
Chuck Nut
Collet Chuck
DOWN
Loosen
Fig. 4
Fig. 5
CAUTION
When installing the collet chuck into the chuck nut, be sure to fully engage the latch inside the
chuck nut to the groove on the collet chucks outer diameter area. In addition, remember that if the
collet chuck is attached without being engaged with the latch of the chuck nut, the collet chuck
cannot be removed and this may cause damage to the collet chuck or the spindle.
Groove
Latch
Collet Chuck
Chuck Nut
Latch
Fig. 6
Fig. 7
