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NSK Varios 750 - 12. Sterilization; Autoclave Sterilization Guidelines; Autoclave Sterilization Procedure; 13. Troubleshooting

NSK Varios 750
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16 17
Fig. 45
· Autoclave sterilization is recommended.
· Autoclave sterilization required first time you use and after each patient as noted below.
· The Tip (except diamond coated scaler Tip), handpiece, Tip Wrench, Tip Cover S, and Tip Holder can be autoclaved.
Autoclave Procedure
1) Remove the Tip after use. ( Refer to 4 Mounting and Removing Tip)
2) Wipe dirt and debris from the handpiece, and wipe clean with alcohol-immersed cotton swab or cloth. Do not use a
wire brush.
3) Insert into an 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 the autoclave pouch to keep it clean until you us
Sterilization at 121°C for more than 15 minutes is recommended by EN13060 or EN ISO17665-1.
12. Sterilization
(7) Fuse Replacement
Release ratched clamp located on the right and left of the Inlet
and pull it out to chage.(Fig. 45)
Optional Fuse : T1.25AL/125V (120V) Order No. U424151
T400mAL/250V (230V) Order No. U459151
Use the Fuse of specified rating. (120V : T1.25AL/125V, 230V : T400mAL/250V)
WARNING
· This products can not be cleaned and disinfected with a Thermo-Disinfector.
· 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.
· Since the bottom shelf of the sterilizer is close to the heat source, it can be too hot. Place instruments in the
middle or top shelves.
· Do not autoclave any parts (the Control Unit, Power Cord, Bottle, Foot Control, Water Tube, Water Connector,
Handpiece Cord including the Cover, Lamp, O-ring, and Spanner Wrench (5 X 8) ). Other than those that can be
subjected to autoclave sterilization. Perform alcohol disinfection to the Control Unit, Power Cord, Foot Control,
Handpiece Cord including with reference after every patient.
WARNING ON STERILIZATION
Fuse
Power Connector
Assembly
Power Connector
Assembly
Fuse
When trouble is found, check the followings prior to consulting dealer.
13. Troubleshooting
No / Poor
vibration.
The Tip is bent
or broken.
The Tip fly away.
Noise from the
handpiece.
The handpiece is
overheating.
The Power Lamp
does not light,
even if the Power
Switch is ON.
The Tip does not
generate
vibration, in spite
of depressing the
Foot Control.
The Power Cord or the Jack is
disconnected.
The Fuse is burned out.
The Tip is not tightened firmly.
Worn Tip.
Output has not been correctly
adjusted for the Tip.
The Foot Control is disconnected.
Failure of vibrator in the handpiece.
Failure of internal components of
the Foot Control.
Output has not been properly
adjusted for the Tip.
The Tip is not tightened firmly.
Output has not been properly
adjusted for the Tip.
The Tip is not tightened firmly.
Failure of vibration in the
handpiece or the Control Unit.
Output has not been properly
adjusted for the Tip.
The Tip is not tightened firmly.
Failure of vibration in the
handpiece or the Control Unit.
Correctly insert the Power Cord or the Jack.
Replace the Fuse.
120V : T1.25AL/125V/230V : T400mAL/250V
Tighten the Tip until the Tip Wrench stops.
Replace the Tip.
Adjust the power on the Tip Case. Do not
exceed.
Connect the Foot Control correctly.
Contact dealer.
Contact dealer.
Adjust the power on the Tip case. Do not
exceed.
Tighten the Tip until the Tip wrench stops.
Adjust the power on the Tip Case. Do not
exceed.
Tighten the Tip until the Tip Wrench stops.
Contact dealer.
Adjust the power on the Tip Case. Do not
exceed.
Tighten the Tip until the Tip Wrench stops.
Contact dealer.
Problem
Probable Cause
Cause Solution

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