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Maintenance
5
Insert the connector of the cord of the new
battery into the connector in accordance with
the polarity indication label inside the battery
chamber�
6
Refer to the figure below and place the
battery into the battery chamber with care so
as not to catch the cord�
CAUTION
● If it is difficult to insert the connector onto the battery, the polarity may be incorrect� Do not insert
it by force�
● After the connector is inserted into the port, lightly pull the battery cord to confirm that it is firmly
inserted�
7
Close the battery cover, and secure it in
place with the screw�
8
Be sure to always charge before use�
NOTICE
● The used nickel metal hydride battery is recyclable, but their disposal may sometimes not be
permitted by the country� Return them to your dealer�
7 – 3 Periodical Maintenance Checks
Every 3 months, perform periodical maintenance checks, referring to the check sheet below� If any
abnormalities are found, contact your authorized NSK dealer�
Points to check Details
Contra angle head Make sure the head cap and union nut are not loose�
Rotation Rotate the motor/handpiece and check for abnormalities such as abnormal
vibration, noise, and overheating�
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