SELMI Demoulding, User And Service Manual

Page: 33 / 54

DEMOULDING
29
6.6.2 Replacement of fuses
To replace the fuses act as follows:
1) Unplug the machine
2) Open the electric panel by releasing the lateral
hooks
3) Remove each fuse from the power board and
individually check their continuity until the faulty
one is found. Remove only one fuse at a time;
once checked, if the fuse is not faulty, put it back
in place before removing the next one.
4) Replace it with a new fuse having the same
electrical characteristics and dimensions
5) Check that the fuse caps have been correctly put
back on
6) Close the electric panel and check that the
machine is working correctly
Warning
When checking the continuity of the fuses
make sure that they are not on a conducting
surface.
Warning
Repeated blowing of fuses could be caused by
problems related to devices installed on the
machine; in this case contact Technical
Services.
6.6.3 Replacement of the display board
To replace the display board follow this procedure:
1) Unplug the machine
2) Open the electric panel
3) Remove the board connection adapter, taking
care to mark the positions of the cables
4) Unscrew the display board and remove it
5) Slot in the new display board and tighten it into
place as it was originally.
6) Reconnect the wires to the probes, making sure
to reinsert the wires in the correct terminals and
tighten the screws
7) 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.
6.6.4 Replacement of the power board
When replacing the power board (see photo on
page 6) 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 wires from the screw terminals,
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.