NSK Varios 570 Bedienungsanleitung Seite 12

11-2 Changing O-Ring
Handpiece Cord
An O-Ring is located in the Handpiece Cord Connector. Use a pointed tool to remove,
and mount new O-Ring into the groove. (Fig. 18)
Optional O-Ring: Order Code 0310020080
11-3 Changing Water Filter
Change the Water Filter as it may necessary.
1) Close the water valve of the dental unit.
2) Mount two Spanner Wrenches (5x8) and turn those as shown in Fig.19.
3) When the Water Filter case is separated, the Water Filter can be removed as shown in Fig. 20.
4) Replace with new (Order Code U387 042) and reassemble the filter in the reverse order.
Water Filter Case
Water Filter Case
12. Sterilization
• Autoclave sterilization is recommended.
• Autoclave sterilization required first time you use and after each patient as noted below. Take handpiece out of the
packing bag before sterilization.
• ONLY the Tip, Handpiece and Tip Wrench, Tip Holder and Tip Cover S ( Option ) can be autoclaved.
This handpiece can be cleaned and disinfected with a Thermo-Disinfector.
Autoclave Procedure
1) Remove the Tip after use. (Refer to 6. Mounting and Removing Tip)
2) Wipe dirt and debris from the products, and wipe clean with alcohol-immersed cotton swab or cloth. Do not use a wire brush.
3) Insert those into autoclave pouch. Seal the pouch.
4) Autoclavable up to max. 135˚C.
Ex.) Autoclave for 20 min. at 121˚C, or 15 min. at 132˚C.
5) Keep the products in an autoclave pouch to keep it clean until you use it.
Sterilization at 121°C for more than 15 minutes is recommended by ISO17664 and EN ISO17665-1.
CAUTION
• Do not sterilize by ultraviolet ray. The handpiece could discolor.
• If autoclaved with other instruments stained with chemical solution, it could strip the plating and make the surface
black.
• Do not autoclave any parts (the Control Unit, AC Adaptor, Foot Control, Handpiece Cord, O-Ring). Other than those
that can be subjected to autoclave sterilization. Perform alcohol disinfection to the Control Unit, AC Adaptor, Foot
Control, Handpiece Cord including after every patient.
• Do not wipe with, or clean or immerse in, high acid water or sterilizing solutions.
Fig.19
11
O-Ring
Water Filter
Control Unit Side
O-Ring
Fig.18
Fig.20