Periodical Maintenance Checks - NSK Varios 370 Manuel D'utilisation

11-3 Changing Water Filter (Option)
Change the Water Filter as it may necessary.
1) Close the water valve of the
2) Mount two Spanner Wrenches ( 5x8 ) and turn those as shown in Fig. 22.
3) When the Water Filter case is separated, the Water Filter can be removed as shown in Fig. 23.
4) Replace with new (Order Code U387042 ) and reassemble the filter in the reverse order.
Varios 370/ Varios 370/
Varios 370 Lux Varios 370 Lux
Water Filter Case

12. Periodical Maintenance Checks

In order to use the product properly and safely, perform operation checks once a year following the steps shown in "3. Prior to
Operating System", "5. Mounting and Removing the Handpiece", "6. Mounting and Removing Tip", and "7. Operating Procedures".
Contact your Authorized NSK Dealer if any abnormalities are found.
13. Sterilization
• All sterilizable components of this device must be sterilized after each patient.
• The recommended method of sterilization is by autoclave sterilization.
• ONLY the Tip (except diamond coated scaler tip), Handpiece, Tip Wrench, Tip Holder and Tip Cover S can be autoclaved.
The diamond coated Scaler Tip is to be sterilized prior to first use, then disposed of as this Tip is single use only.
NOTE • NSK recommends sterilization according to ANSI/AAMI ST79 and EN 13060 (class B).
• Follow the manufacturer's instructions for use that came with your sterilizer.
• For more information about sterilization standards, refer the medical device regulations
specific to your location.
The surface of the handpiece can be washed and disinfected with a Thermo-Disinfector prior to Sterilization.
Autoclave Procedure
1) Remove the Tip after use. (Refer to 6. Mounting and Removing Tip)
2) Clean all the surfaces of the components using a small tooth brush with isopropyl alcohol to remove dirt and debris then
dry thoroughly.
3) Insert sterilizable components into a U.S. FDA-cleared sterilization pouch, complaint to ISO 11607-1. Seal the pouch.
4) Autoclave conditions are below:
< When sterilizing a Tip>
Type
Minimum Temperature
Full Cycle Time
Minimum Drying Time
* Not for use in the U.S.
.
Chair Unit
Dental Unit
Fig. 22
Steam Sterilization Cycle
Gravity Displacement
132°C 135°C
15 minutes 10 minutes
15 minutes 30 minutes
O-Ring
Varios 370/Varios 370 Lux
Pre-Vacuum (Dynamic Air Removal)
132°C 134°C*
4 minutes 3 minutes
20 minutes 30 minutes
16
Water Filter
Dental Unit
Fig. 23
135°C
3 minutes
16 minutes