KERR SonicFill Multiflex Mode D'emploi page 35

Troubleshooting
▶ Press the O-ring between your fingers to form a loop.
▶ Push the O-ring to the front, and remove it.
▶ Insert the new O-rings in the recesses and wet them using a cotton
ball soaked with SonicFill Handpiece Lubrication spray.
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