Handling Of Motor And Handpiece - NSK Ultimate XL-F Manual De Uso

10. 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. 6)
CAUTION
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. 7)
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.8)
(2) Cleaning of Chuck
To keep accuracy for the 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
9
Fig. 6
LOOSE LOOSE LOOSE LOOSE
Fig. 7
LOOSE LOOSE
Fig. 8