SELMI TOP EX, Руководство пользователя и обслуживания

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Maintenance section
User and service manual
– TOP EX – Continuous tempering machine
38
The electronic board is sensitive to static discharges;
we suggest handling it with caution, avoiding touching
the printed circuit tracks.
6.6.4 Replacement of the power board
When replacing the power board (see photo on page
5) follow these steps:
1) Unplug the machine
2) Open the electric panel by using the provided
key
3) Remove the plug in terminals from the power
board along with the display board connecting
cable
4) Disconnect the screw terminal wires, labelling
them in order to be able to reconnect them
correctly
5) Unscrew the power board and remove it,
paying attention not to move the spacers that
keep it separated from the metallic casing of
the electric panel
6) Slot in the new power board and tighten it into
place as it was originally
7) Reconnect the wires into the screw terminals,
paying attention not to invert their original
positions
8) Reinsert the plug-in terminals correctly
9) Reinsert the display board connecting cable
The electronic board is sensitive to static discharges;
we suggest handling it with caution, avoiding touching
the printed circuit tracks.
6.7. Components subject to wear and tear
Attention
Components subject to wear and tear due to
their function must be periodically checked and
replaced when they show noticeable signs of
wear.
The manufacturer has designed and built the machine
to last for a reasonable amount of time taking into
consideration its intended use; it is nevertheless
necessary to periodically carry out checks to verify the
state of the components subject to wear and tear.
If structural deformations or fissures in the metallic
components or in the soldering are found, immediately
contact the manufacturer’s customer service; the
expert technicians will help you to take the necessary
steps.
Due to their manufacturing properties, heating
elements undergo a reduction of their isolating
properties over time, particularly when exposed to a
high level of humidity. Periodically check the
functioning of the circuit breaker, provided for the
protection of the machine.
All electrical components having mechanical moving
parts during the working cycle (buttons, relays, etc.)
are guaranteed by the manufacturer for a high, but
always limited, number of cycles.
Periodical cleaning of the inner part of the electric
panel prevents these elements from being subject to
further mechanical fatigue.