NSK NLZ E Mode D'emploi page 45

Maintenance
6-2 Replacing the O-rings (Motor rear side)
If water or air leaks from the motor and motor cord
connection, replace the O-ring(s).
Using a needle or other pointed tool, remove the defective
O-ring(s) from the pipe at the motor rear section, and fit
new O-ring(s) into the O-ring groove(s).
(Air circuit: 2 pcs., water circuit: 2 pcs., coolant air
circuit: 1 pc.)
If an O-ring deteriorates, the following phenomena might occur:
-Water leakage, no water discharge
-Air leakage, no air discharge
-Generation of vibration
-Handpiece becomes difficult to attach or remove
Refer to "9-2 Spare Parts List" to identify the correct parts.
CAUTION
NOTICE
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