Handling Of Motor And Handpiece - NSK ULTIMATE XL Mode D'emploi

11. Handling of Motor and Handpiece

(1) Insertion or Removal of Bur
The chuck is opened by turning the Bur Lock Ring
to an open position. The chuck is loosened and the
bur can be removed. By turning the ring in the
LOCK direction, the chuck is closed and the bur
can be mounted. At this time, turn the ring until it
clicks. (Fig.7)
CAUTION
• Do not turn the Ring during rotation.
• Do not turn a motor, when it has not attached bur or the Ring Open position. It may be
reasons for the failure or overheating of the handpiece.
(2) Cleaning and Replacement of Chuck
(1) Removal of Chuck
To remove the chuck, open the ring and turn
the chuck counterclockwise with the provided
spanner wrench. (Fig.8)
* If a bur having a large diameter of a cutting
part is used under a high torque, the chuck
may rotate in the close direction and the bur
may be stuck and cannot be removed. In
this case, align the nose's slit and spindle's
spanner position (flat part), and apply an L
spanner to fix the spindle. Open the ring and
turn the chuck counterclockwise with the
provided spanner wrench to remove it.
(Fig. 9)
(2) Cleaning of Chuck
Remove and clean the chuck as frequently as possible in the ultrasonic cleaner. Clean at
least once a week.
CAUTION
Neglecting to clean the chuck for a long time is very dangerous because wax, gypsum,
etc., accumulate in the chuck and the bur is caught insecurely, causing runout.
LOCK
OPEN
12
Fig.7
Loosen Loosen Loosen
Fig.8
Loosen Loosen Loosen
Fig.9