Changing The Tool - Nakanishi EMSF-3060K-RBT Operation Manual

7 . CHANGING THE TOOL

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