Mectron MICROPIEZO Mode D'emploi Et D'entretien page 120

MICROPIEZO
When the nitriding is consumed, the
cutting edge loses effectiveness; a possible
regrinding harms the insert, therefore it is
prohibited. Verify that the insert is not worn.
During the operation frequently check that
the insert is intact, especially in the apical
part.
During the operation avoid prolonged
contact with the retractor or with metal
instruments in use.
CAUTION: Contraindications. After
autoclaving the handpiece, the inserts, the
torque wrench, or any other sterilisable
accessory, wait until it has completely cooled
before reuse.
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CAUTION: The electrical contacts
inside the connectors on the handpiece
and cord must be dry. Before connecting
the handpiece to its cord, make sure that the
electrical contacts of the connector on both
sides are perfectly dry, especially after the
sterilisation cycle in an autoclave. If necessary
dry the contacts by blowing them with
compressed air.
CAUTION: For its conformation, the
handpiece can roll. The handpiece when not
used must always be placed on its support.