NSK FX15 User manual

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ENGLISH
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Read this Operation Manual before use to fully understand the
product functions and file for future reference.
When operating the product always consider the safety of the
patient.
This product does not consider patient’s age (except infants),
gender, weight or nationality.
This product does not consider operator’s age (mature person),
height, weight, gender, or nationality.
Users are responsible for the operational control, maintenance
and continual inspection of this product.
Do not attempt to disassemble the product nor tamper with the
mechanism except as recommend by NSK in this Operation
Manual.
Do not allow any impact on to the product. Do not drop the
product.
Operators and all others in the area must wear eye protection and
a mask when operating this handpiece.
Should the product function abnormally, cease operation
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CAUTION
1. User and Intended Use
User : Qualified Professionals
Intended Use : Dental Treatment
(FX15/FX15m/FX23/FX23m/FX25/FX25m)
Dental Treatment (Endodontics) (FX75/FX75m)
2. Precautions for handling and operation
Please read these precautions carefully and use only as intended or
instructed.
Safety instructions are intended to avoid potential hazards that could
result in personal injury or damage to the device. Safety instructions
are classified as follows in accordance with the seriousness of the risk.
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4. Insertion & Removal of the Bur/File
4-1 To Insert the Bur (FX15/FX15m/FX23/FX23m/FX25/FX25m)
1) Insert the bur until it is correctly seated in place.
2) Depress the Push Button and insert the bur into the chuck until the
3. Connection & Disconnection of the Handpiece and Motor
3-1 Connection
1) Connect the handpiece direct to the motor. (Fig.1)
2) Make sure the handpiece is firmly connected to the motor.
3-2 Disconnection
Hold the motor and the handpiece separately and disconnect with
care.
Disconnect the handpiece only after the motor has completely
stopped rotating.
Connect ONLY to E type motors (ISO 3964).
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CAUTION
immediately and contact your Authorized NSK Dealer.
Depressing the Push Button while the handpiece is in operation
may cause overheating, serious technical damage and possible
premature handpiece failure. During operation avoid contact with
any oral tissue that may cause the Push Button to be depressed
while the handpiece is in operation.
Do not use high acid water or sterilizing solutions to wipe, immerse
or clean the handpiece.
The products are delivered in a non-sterile condition and must be
autoclaved prior to use.
Perform regular function and maintenance checks.
If the product is not used for a long period check it is functioning
correctly before using on a patient.
To avoid clinical downtime it is recommended that a spare be kept
on hand in case of a breakdown during surgery.
U.S. Federal law restricts this device to sale by or on the order of a
licensed physician.
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ENGLISH GERMAN FRENCH SPANISH ITALIAN
bur "notch" mechanism engages. Release the button. (Fig.2)
3) Ensure that the bur is secure by gently pulling and pushing the bur
WITHOUT depressing the Push Button.
4-2 To Insert the File (FX75/FX75m)
1) Insert the file until it is correctly seated in place.
2) Depress the Push Button and insert the file into the chuck until the
file "notch" mechanism engages. Release the button.
3) Ensure that the file is secure by gently pulling and pushing the file
WITHOUT depressing the Push Button.
4-3 To Remove the Bur/File
Depress the Push Button firmly and remove the bur/file. (Fig.3)
Always insert the bur or file all the way into the chuck.
Remove the bur or file only after the handpiece has completely
stopped rotating.
Always keep the bur or file shank clean. Entry of debris into the
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CAUTION
chuck, via the bur shank, could cause bur rotation slip and also
prevent the bur from being securely located in the chuck.
Do not exceed the bur or file speed recommended by the bur or
file manufacturer.
Do not exceed the drive motor speed or torque recommended by
the file manufacturer.
Do not exceed maximum bur length recommended by the
handpiece manufacturer.
Do not apply excess pressure to the bur/file as it may break or
bend or become difficult to remove.
DO NOT use bur/file with problems listed below as the bur/file may
break or disengage from the chuck.
- Bent, deformed, worn, rusted, broken, deficient bur.
- Bur which is cracked on the edge or axis.
- Non-ISO standard, or tampered bur.
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Refer to the Thermo-Disinfector manual.
5. Connection of the Spray Nozzle (FX23/FX23m/FX25/FX25m)
1) Attach the Spray Nozzle (Optional) to the handpiece head.
2) Cut the Irrigation Tube to the desired length then connect to the Spray
Tube Nozzle on the motor. (Fig.4)
6. Check before treatment
Check that the Head Cap is firmly tightened. Also check for handpiece
vibration, noise and overheating. If any abnormalities are found do not
use the handpiece and contact your Authorized NSK Dealer.
7. Maintenance
After each patient maintain the product as follows.
7-1 Cleaning (Handpiece)
1) Remove dirt and debris from the product. Do not use a wire brush.
2) Wipe clean with alcohol-immersed cotton swab or cloth.
This icon denotes that the product can be washed via Thermo
Disinfector. (FX15m/FX23m/FX25m/FX75m)
After washing with Thermo-Disinfector and prior to lubrication,
dry the product until all internal moisture is thoroughly removed.
Thermo-Disinfector moisture remaining inside the product could
reduce the effect of lubrication and could cause corrosion inside
of the product.
To clean the product never use any solvent such as benzine or
thinner.
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CAUTION
7-2 Lubrication
NSK PANA SPRAY Plus
Apply NSK PANA SPRAY Plus every time after each use and/or before
autoclaving.
1) Remove the bur or file from the handpiece.
2) Insert the Spray Nozzle into the Spray Port nozzle on the can.
3) Insert the Spray Nozzle in rear of the handpiece. Hold the
handpiece and spray for approximately 2-3 seconds. Apply

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Do not autoclave the product with other instruments even when it
is in a pouch. This is to prevent possible discoloration and damage
to the product from chemical residue on other instruments.
Keep the product in suitable atmospheric pressure, temperature,
humidity, ventilation, and sunlight. The air should be free from
dust, salt and sulphur.
Immediately after use, the handpiece should be cleaned,
lubricated and sterilized. If blood remains on the external or
internal surfaces it can become clotted and cause rust.
Do not heat or cool the product too quickly. Rapid change in
temperature could cause damage to the product.
If the sterilizer chamber temperature may exceed 135°C during
the dry cycle then delete the dry cycle.
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CAUTION
Autoclave for more than 20 min. at 121°C, or 15 min. at 132°C, or
3 min. at 134°C.
3) The handpiece should remain in the autoclave pouch until required
for use.
lubricant until it expels from the handpiece head for at least 2
seconds. (Fig.5)
When applying spray be sure to hold the handpiece firmly to
prevent the handpiece from slipping out of the hand due to the
spray pressure.
Hold the spray can upright.
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CAUTION
NSK Care3 Plus
When using NSK Care3 Plus automatic handpiece cleaning and
lubrication system, refer to the Care3 System instructions.
7-3 Sterilization
Sterilize the product by autoclave sterilization. Remove the bur or file
after each patient and sterilize as noted below.
1) Insert an autoclave pouch. Seal the pouch.
2) Autoclavable under the conditions below.

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8. Replacing the Cartridge (FX23/FX23m/FX25/FX25m)
1) Detach the shank by turning it counter clockwise and remove the
head from the shank. (Fig.6)
2) IInsert the wrench firmly into the rear of the handpiece head until it
stops, as shown in Fig.A-1.
3) Tightly hold the wrench as illustrated in Fig.B then pull the drive shaft
straight out in the direction of the arrow. (Fig.B)
4) Locate the correct wrench tool for the head cap then turn the wrench
counter clockwise to loosen the cap. Remove the cap. (Fig.7)
CAUTION
Autoclave sterilization is recommended for the product. The
validity of other sterilization methods is not confirmed.
Do not touch the product immediately after autoclaving as it will
be very hot and must remain in a sterile condition.
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NSK recommends Class B sterilizers as stated in EN13060.
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NOTICE
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Be sure to insert the wrench straight into the handpiece head. Do
not insert the wrench at an angle as shown in Fig.A-2.
When removing the drive shaft, tightly hold the wrench as directed
in Fig.B.
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A-1 A-2
B

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CAUTION
no gap between them. A loose connection could make the head
unstable, resulting in an accident during use.
Use only a genuine NSK cartridge.
If a non genuine cartridge is used NSK cannot guarantee
performance and the handpiece warranty would become invalid.
Always first finger tighten the head cap then secure firmly with the
wrench.
NSK never recommends the disassembly and repair of any NSK
cartridge. There is NO EXCEPTION. In such a case a handpiece
may perform abnormally (abnormal noise or abnormal vibration).
Damage, failure or accidents are outside of our guarantee.
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5) Use the bur to gently lever the entire cartridge out from the head.
(Fig.8)
6) Clean the head interior with NSK PANA SPRAY Plus.
7) Wipe the NSK PANA SPRAY Plus oil over the head interior.
8) Insert the new cartridge into the head by aligning the pin on the
cartridge with the slot on the head. (Fig.9)
9) Tighten the head cap with the correct wrench.
10) Insert the drive shaft firmly into the handpiece head until it clicks. If
the click is not heard, insert it again.
11) Reattach the shank.
*Refer to Spare Parts List to identify the correct cartridge.
After removing, do not hold the shank upside down as it could
cause the internal parts to drop.
Before turning the head cap, make sure the wrench is correctly
aligned with the cap. Do not turn the wrench at an angle as
abrasion of the wrench may occur.
Secure the shank firmly to the handpiece head so that there is
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