NSK M40 XS Manuel D'utilisation page 10

7. Replacing the O-rings
Replace the O-rings if water or air leakage is present from the motor insert. ALWAYS change the complete
set of O-rings.
1) Gently remove each O-ring by hand.
2) Insert the complete set of new O-rings in the correct grooves.
*Refer to Spare Parts List to identify the correct parts.
CAUTION
• When inserting new O-rings, make sure they are inserted in the correct grooves.
• The blue O-Ring is thinner than the 3 black O-Rings. When inserting new O-rings, make sure they are inserted in the correct grooves as shown in the Fig. 3.
• Worn O-Rings may cause:
-Air/Water leakage -Air/Water blockages -Abnormal Vibration -Difficulty connecting/disconnecting the handpiece
• Use ONLY genuine NSK O-Rings. Use of nonconforming O-Rings might lead to water leakage or the handpiece might become difficult to connect/disconnect.
O-ring (Blue)
Motor Insert O-ring (Black)
Fig. 3
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