NSK VR-EB Manuel utilisateur
001
1
EN DE FR ES IT PT
1. User and Indications for Use
Users: Dental Technicians and Dentists
Indications for Use: For use in Dental Laboratories for cutting and polishing
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.
Class Degree of Risk
WARNING Hazard that could result in serious injury or damage to the device if the safety instructions are not
correctly followed.
CAUTION Hazard that could result in light or moderate injury or damage to the device if the safety instructions
are not correctly followed.
NOTICE General product specification information highlighted to avoid product malfunction and performance
reduction.
ENGLISH
2
WARNING
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CAUTION
ŘThe product must be used by a person who has received professional instruction as a health care provider, such as a dental
technician or dental physician, in a dental clinic, hospital or other medical institution.
ŘUsers are responsible for the operational control, maintenance and continual inspection of this product.
3
EN DE FR ES IT PT
CAUTION
ŘRotate the bur to check for vibrations, noise, or temperature (heat) being emitted. Should the Handpiece function abnormally
at this time, stop using it immediately and contact your Authorized NSK Dealer. (Refer to “6. Checking the Handpiece Before
Each Use”)
ŘDo not disassemble or alter the handpiece except as recommended by NSK in this Operation Manual.
ŘDo not allow any impact on to the product. Do not drop the product.
ŘOperators and all others in the area must wear eye protection, a mask, and gloves when operating the Handpiece.
ŘOperate the Handpiece at speeds under the maximum rotation speed of 35,000min–1.
ŘWhen using a bur with a large cutting blade (4mm or larger in diameter), use it at as low a rotation speed as possible.
ŘDo not use burs with problems listed below as the bur may break, seize up or disengage from the chuck.
– Bent, deformed, worn, rusted, broken, deficient bur.
– Bur which is cracked on the edge or axis.
– Non-ISO (EN ISO) standard, or tampered bur.
ŘAlways keep the bur shank clean. Debris in the chuck could cause poor bur concentricity or low chuck retention force.
ŘAlways insert the bur all the way into the chuck. If insertion is insufficient, premature failure of the handpiece head bearings,
or accidental release of the bur, may occur.
4
CAUTION
ŘAlways follow the instructions provided by the bur manufacturer.
ŘWhen a bur is rotating, do not turn the bur lock ring in the direction. Doing so will cause the Handpiece to break.
Particularly when replacing a bur, do so after rotation has completely stopped.
ŘShould the handpiece function abnormally during use, stop using the handpiece immediately and contact your Authorized NSK
Dealer.
ŘClean the Handpiece on a timely basis. Follow the procedure in “7. Post-use Maintenance” in the Operation Manual to perform
cleaning.
ŘDo not use the following fluids to wipe, immerse or clean the product; strong / super acid water, strong acid / alkaline
chemicals, chlorine-containing solutions, solvents such as benzine or thinner.
ŘDo not lubricate the Motor Handpiece with oil. Doing so might cause it to generate heat or malfunction.
ŘPerform regular function and maintenance checks. (Refer to “8. Periodical Maintenance Checks”)
ŘIf the handpiece has not been used for a long period, rotate the handpiece and check for noise, vibration and overheating
before use.
ŘTo avoid clinical downtime it is recommended that a spare be kept on hand in case of a breakdown during treatment.
5
EN DE FR ES IT PT
NOTICE
ŘKeep a cutting bur or test bur attached even when the product is not in use.
ŘContact your Authorized NSK Dealer if the product fails.
3. Accessory List
No. Name Quantity
1 Wrench for Adjusting Chuck 1
6
4. Connecting and Disconnecting the Handpiece from the Motor
4-1 Connecting
1) Insert the handpiece direct into the motor (Fig. 1). When
connecting an optic handpiece, turn the handpiece until it clicks
and locks into position.
2) Confirm that the handpiece is securely connected to the motor.
4-2 Disconnecting
Hold the motor and the handpiece, then pull apart.
Insertion Area
Handpiece Motor
Fig. 1
CAUTION
ŘDo not connect or disconnect the handpiece until the motor has completely stopped.
ŘConnect ONLY to E type motors (ISO 3964 (EN ISO 3964)).
7
EN DE FR ES IT PT
5. Inserting and Removing the Bur
5-1 Removing the Bur
1) Turn the bur lock ring in the direction until it clicks to loosen the chuck.
2) Pull out the bur.
5-2 Inserting the Bur
1) Insert the bur in all the way.
2) Turn the bur lock ring in the direction until it clicks to tighten the chuck.
After attaching the bur, pull it back and forth to confirm that it is connected
securely.
Bur Lock RingChuck Open
Open
Closed
Closed
Fig. 2
8
WARNING
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9
EN DE FR ES IT PT
CAUTION
ŘWhen using a bur with a large cutting blade (4 mm or larger in diameter), use it at as low a rotation speed as possible.
ŘAlways keep the bur shank clean. Debris in the chuck could cause poor bur concentricity or low chuck retention force.
ŘAlways insert the bur all the way into the chuck. If insertion is insufficient, premature failure of the handpiece head bearings,
or accidental release of the bur, may occur.
ŘAlways follow the instructions provided by the bur manufacturer.
ŘWhen a bur is rotating, do not turn the bur lock ring in the OPEN direction. Doing so will cause the Handpiece to break.
Particularly when replacing a bur, do so after rotation has completely stopped.
6. Checking the Handpiece Before Each Use
Before using the product, rotate the bur to perform an inspection. If you notice a problem such as bur instability, vibrations,
generation of heat, or abnormal sounds during an inspection or use of the product, cease operation immediately and contact your
Authorized NSK Dealer.
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