Handling Of Motor And Handpiece - NSK ULTIMATE XL Operation Manual

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
Loosen Loosen Loosen
Loosen Loosen Loosen
12
(3) Insertion of Chuck
Thinly apply oil before insertion. Open the ring,
insert the dummy bur or the bur in use into
the chuck, and turn the chuck clockwise by
hand until it stops. Then, lock the ring, and
the chuck could hold the bur securely.
(Fig. 10)
Fig.7
CAUTION
Before using the handpiece, make sure to pull the rotating instrument (bur, etc.) to check
that it is securely mounted.
3. Disconnecting and Connecting of Motor Cord to Motor
Remove the cord nut at the rear end of the motor, and the motor cord connector can be
pulled out. For connection, align the connector pin and the hole in the motor cord connector,
and insert the connector straight until it stops. Then, tighten the cord nut.
* When inserting the connector, do not turn or twist it.
Fig.8
4. Disconnecting Handpiece from Motor
The handpiece and motor are screwed at the
midpoint. Firmly grasp the motor outer case
and the handpiece outer case and turn it
counterclockwise to disconnect. (Fig. 12)
Fig.9
CAUTION for Handpiece connection
When connecting the handpiece to the motor, turn
the handpiece clockwise and tighten firmly. If the
clutch is not engaged properly, the handpiece cannot
be tightened completely. In such case, Do Not Force.
Loosen the handpiece and turn the bur briefly to
re-position the drive dog. Reconnect the handpiece and tighten securely. (Fig. 13).
Turn until finger-tight Turn until finger-tight Turn until finger-tight
Torque Type/Compact Type
Fig.13
13
Fig.10
Fig.11
Fig.12