NSK PRESTO AQUA LUX Manuel Technique page 9

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.
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. 13
Pipe fpr Water and chips Pipe fpr Water and chips Pipe fpr Water and chips
Positioning Pin Positioning Pin
8
Chuck Release Ring Chuck Release Ring
Positioning Hole Positioning Hole
Fig. 12
Fig. 14
Fig. 15
Fig. 16
Fig. 17