NSK PRESTO AQUA LUX Mode D'emploi page 6

5. Operational Procedures of Handpiece
( 1 ) The chuck of the PRESTO AQUA LUX handpiece is a push-in chuck. Align
FG burs with ø1.6mm shaft diameter with chuck and push in as shown in
Fig.12 Push the bur in by using the designated bur-inserting tool as shown
in Fig.13.
( 2 ) To remove the bur turns the Chuck Release Ring in the direction of the
arrow in Fig.14.
Fig. 13
6. Replacement Proceduers of Cartridge
( 1 ) Loosen the cartridge retainer by turning it in the
direction shown in Fig.15.
( 2 ) Hold the bur and pull to take out the cartridge toward
the front. ( Fig.16 ) At this time, the O-ring placed on
therear bearing may remain in the body. Make sure to
remove the O-ring. Before inserting a new cartridge,
clean the head interior.
( 3 ) When fitting a new cartridge, align the water and chip
air pipes as well as the positioning pin with the holes
in the nose hood of the cartridge and push in straight.
( Fig.17 )
( 4 ) Finally, tighten the cartridge retainer securely.
CAUTION
Do ensure care when handeling the dissambled
handpiece, Fiber Optic an easaly dammage.
Fig. 12
Chuck Release Ring Chuck Release Ring Chuck Release Ring
Fig. 14
Fig. 15
Fig. 16
Pipe fpr Water and chips Pipe fpr Water and chips Pipe fpr Water and chips Pipe fpr Water and chips Pipe fpr Water and chips
Positioning Hole Positioning Hole Positioning Hole
Positioning Pin Positioning Pin Positioning Pin
Fig. 17
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7. Replacement or Cleaning Procedures of Chuck
( 1 ) Removal of Chuck
1 ) Remove the cartridge with a bur or bur blank.
2 ) Hold the rotor with two fingers as shown in Fig.18.
Mount the Wrench provided on the rotor nut located on
the top of the rotor shaft and turn counterclockwise
( either side of the wrench can be used. )
3) When the Rotor Nut is loose, push out the chuck
carefully with the bur blank or the shank of the bur
from the back of the cartridge, the guide-bush and the
chuck will come out. ( Fig. 19 )
CAUTION
The guide-bush is a very small part and can easily be lost. Please pay attention.
• To clean the chuck places it in an ultrasonic bath. Blow oil spray into the inside of the rotor shaft and clean thoroughly.
NOTICE
Remove the chuck and clean once a week.
( 2 ) Chuck assembly or replacement
1 ) Apply oil thinly on the surface of the chuck, insert the bur blank and push into the rotor shaft. ( Fig.20 )
2 ) Insert straight long side of guide-bush toward the
Cartridge side. ( Fig. 21 )
3 ) Finally insert the rotor shaft nut along the test blank
and firmly tighten it with the rotor shaft nut wrench
while holding the rotor. ( Fig.22 )
Guide-Bush Guide-Bush Guide-Bush
Rotor
Rotor Nut
Chuck
Test Bur
Guid Bush
Test Bur Test Bur Test Bur
Fig. 21
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Fig. 18
Fig. 19
Fig. 20
Fig. 22