• Ball bearings, in time, will become worn and will require replacement. Be sure to inspect the handpiece before use (Refer to "6. Checking the Handpiece

Before Each Use"). If abnormal vibration or noise are found, the bearings or other internal parts may require replacement. Damaged parts may lead to

handpiece overheating causing burn injuries. If overheating is suspected, stop using the handpiece immediately and contact your Authorized NSK Dealer.

CAUTION

• When operating the product always consider patient safety.

• Users are responsible for the operational control, maintenance and continual inspection of this product.

• Prior to clinical use, inspect the handpiece. Check for vibration, noise and overheating. If any abnormalities are found, stop using the

handpiece immediately and contact your Authorized NSK Dealer. (Refer to "6. Checking the Handpiece Before Each Use")

• Do not disassemble or alter the handpiece except as recommended 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.

• Do 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.

• Do not use burs other than specified in "9. Specifications" as such burs may be accidentally released or break during rotation.

• Always keep the bur shank clean. Debris in the chuck could cause poor bur concentricity or low chuck retention force.

• Always 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.

Table des Matières