dentalfarm MICRA Evoluzione, Руководство пользователя и по обслуживанию

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5. MAINTENANCE
Many of the components of any sandblasting machine are subject to wear : this is
caused by the circulation of abrasive media; the instructions for a careful maintenance of
the machine as well as the operations to replace the damaged or worn out parts are
specified here below.
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ATTENTION:
Before carrying out any maintenance operation inside the working
chamber or technical repair of the connections, remove the feeding
cable both from network socket and from the rear of the machine; in
such a way, both the electric and pneumatic installation of the unit will
be fully disconnected.
Should you have any doubts or difficulties, please contact our
Technical Service to avoid any risks or damages.
Cleaning of the 5my filter
A 5my filter, fitted on the right side of the sandblaster, prevents fine dust from damaging
internal components. Remove the inspection cap every 2-3 months and blow the filter with
compressed air to clean it from dust sediment.
Replacement of the polycarbonate window
Although the window is anti-scratch, it may be damaged by an extensive use (or a bad
maintenance). Replacement is very simple: locate the screws which fix the window to the
hinges and unscrew them.
Replacement of the plastic protection screens of the glass window
: remove the fixing
clips, clean accurately the glass and place a new protection screen.
Replacement of gloves
The gloves are made of highly resistant and elastic latex, but are subject to the natural
ageing of rubber and to the action of sweat (produced by hands). This cause them to dry
up. To replace them, unscrew the flange screws and fit a new pair of gloves into the proper
seat.
Replacement of nozzles
Nozzles of the microblasting tanks are also subject to wear and need to be replaced. To
do this, unscrew the ring nut and assemble the new nozzle.
Replacement of abrasive media
To replace used abrasive media, pull the machine forward, lift the internal filtering grid,
remove the cap from the bottom of the working chamber and let abrasive flow out,
collecting it into a proper container.
Replacement of parts subject to wear (pipe, pipe-fittings, microprojector body)
The polyurethan pipe, the connection fitting and the microprojector body where abrasive
flows will inevitably wear out and need to be replaced regularly. To replace the
microprojector body, follow the same instructions specified for the nozzle; to replace pipes
or pipe-fittings, capsize the unit and work under the container. It is also possible to
disconnect each tank for easier operation, simply unscrewing the nuts fixing it to the
housing.