Do not get water in the nose of handpieces. It will rust iinternal parts.

Maintenance steps for High Speed Handpieces. 1. Prior to removing from hose, run handpiece for 10 seconds. 2. Clean externally with a degreaser/cleaner. NEVER USE SOAP OR WATER! High heat causes soap to crystallize, causing bearings to seize, water causes rust deposits internally! 3. Apply 3-5 drops of handpiece lubricant to intake side of handpiece (shown above). Please use a low viscosity lube. IF LUBE DOES NOT EXPEL FROM HEAD CLEAR AND CLEAN REPEAT THE PROCEDURE 4. Remove bur, bag handpiece. Make sure to elevate the head, so that sediments may run down the tube rather than rest in bearings where they may cause rust deposits. Do Not Use Dry Heat, Which May Damage Internal Parts. 5. Upon completion of sterilization cycle, open bag to air dry. Never Leave Handpieces In Sterilizer Over Night. WEEKLY MAINTENANCE 1. Flush handpiece with degreaser/cleaner or lube on the intake side of the handpiece(shown above) until solution runs clear through the head. 2. Spray lube directly into chuck, especially if it is an auto chuck(push button or lever). 3. Follow above steps 1-5. LUBE FREE BEARINGS HANDPIECES 1. Clean handpieces externally with a degreaser/cleaner. 2. DO NOT USE LUBE INTERNALLY OR RUN ON A FLUSH SYSTEM! (Cleaners and lube will break down the special grease that is used in the bearing and will void the warranty).