If you experience any one of the following failures, try step-by-step troubleshooting described below.

• Insufficient water supply
• Irregular water supply
• No mist spray
• No water at all

Identifying the Blockage

1．Preparation for reprocessing

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• Wear protective gloves, a mask, and eye protection to prevent infection.

2．Pre-cleaning

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• Remove the bur from the handpiece with tweezers.
  Maintenance of the bur should be done in accordance with the operation manual issued by the bur manufacturer.

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• Wipe the contaminated surface of the handpiece using CaviWipes or a cloth moistened with CaviCide or ethanol with a concentration of 60-90% .

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• Operate the handpiece at the chair-side for more than 20 seconds to purge contaminants out of the handpiece.

  *Put the head of the handpiece about 20 mm in water and rotate forward and reverse for more than 15 seconds (only the surgical handpieces of 20:1).

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• Remove the handpiece from the motor or coupling.

3-A．Manual cleaning

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• Wash the surface of the handpiece under running water with a soft bristled brush for more than 15 seconds.
  • Water temperature: Less than 38°C (100.4°F)
  • Water quality: Water available as drinking water
  • Water amount: More than 3.5L/min

Clean inside of the chuck under running water for more than 15 seconds, using an interdental brush (wire thickness 0.7mm) that conforms to size 4 in ISO 16409.

After cleaning, under appropriate lighting (500 lx or higher), inspect the handpiece for contamination. If any visible contamination remains, repeat the process until it is visually clean.

3-B．Automated cleaning (washer-disinfector)

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• NSK handpieces marked with this symbol can be used at washer-disinfector.
  Use a cleaning and disinfection device (washer-disinfector) complying with ISO 15883.
  

  *When using washer-disinfector, refer to the operation manual of the washer-disinfector.

Wipe the surface of handpiece on a part where cotacts the handpiece holder using CaviWipes or a cloth moistened with CaviCide or ethanol with a concentration of 60-90%.

Washer-disinfector will clean and disinfect the internal and the surface of the handpiece.

After cleaning, under appropriate lighting (500 lx or higher), inspect the handpiece for contamination.

4-A．Lubrication (PANA SPRAY Plus)

Attach the Tip Nozzle into PANA SPRAY Plus.

Shake the PANA SPRAY Plus well for several times.

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• Lightly push the button of the handpiece to lubricate the bur insertion hole.

Attach the Spray Nozzle applicable for the handpiece to PANA SPRAY Plus.
*M4/B2 Air Turbine can use the Tip Nozzle.

Shake the PANA SPRAY Plus well for several times.

Attach the handpiece to the spray nozzle.

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• Covering the head of the handpiece with a cloth, and spray while holding the handpiece and a cloth.
  • Spray time: 3 seconds
  • Number of spray: Once

  *If liquid drip, please rotate for more than 15 seconds (only the Contra-Angle handpiece).
  Lubrication successfully completed if clear liquid coming out from the handpiece.
  If unclear liquid came out or liquid did not come out, please lubricate again.

4-B．Lubrication (iCare)

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• *Do not use iCare for Surgical handpiece.
  *When using iCare, refer to the operation manual of the iCare.
  
  Lubricate the chuck part of the handpiece.

Attach the handpiece to the applicable adapter or connector.
iCare will lubricate the internal of the handpiece.

5．Sterilization

*Follow local rules, regulations, and guidelines regarding the reprocessing of devices.
*Sterilization conditions refer to the operation manual of the handpiece.

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• NSK handpieces marked with this symbol can be autoclaved.

Insert the handpiece individually into a FDA cleared pouch that conforms to ISO 11607-1, and seal the pouch.

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• Insert the handpiece into sterilizer to perform steam sterilization.

6．Storage

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• Store the product in a place where it is kept clean and dry, and keep it in a sterilization pouch until it is used next.

7．Check before a treatment

Open the sterilization pouch and take out the handpiece before use.

Connect the handpiece to the coupling or motor.

Confirm that the head cap is not loose and sufficient cooling water comes out from the handpiece.

Then, attach the bur to the handpiece.
Confirm that the bur does not come out.

Run the handpiece at the allowable maximum rotation speed with cooling water for 1 minute at the chair side.
Confirm that no abnormal bur wobble, vibration and noise.

After handpiece has stopped, make sure the head of the handpiece did not heat up.