fiac AIRBLOK 40, Руководство по эксплуатации и обслуживанию, Страница: 39 / 68

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GB
COMPRESSOR MAINTENANCE 6
The machine stops, as the
compressor motor trip switch
has tripped (red LED).
The machine stops, as the
radiator fan motor trip switch
has tripped (red LED).
The compressor is running
but fails to load.
Anomalies Cause Solution
Compressor motor trip switch
tripped.
Radiator fan motor trip switch
tripped.
The suction valve fails to open.
Ensure the electrical power supply is correct,
checking if the three power supply phases
are around about the same value. Ensure
the cables are firmly connected to the
terminal board and make sure the electrical
cables have not melted. Ensure the suction
grid of the cooling fan of the motor is not
dirty or obstructed with foreign objects
(paper, leaves, rags). To start the machine
again, wait for the motor to cool down.
The machine works with two phases due a
fault in the motor or due to a blown fuse,
therefore have the motor repaired by an
authorised Fiac SpA centre if necessary or
replace the blown fuse. If the machine fails
to depressurise, check the depressurisation
line and excessive ambient temperature, in
which case ventilate the room and lower the
temperature to below 45°C.
Ensure the electrical power supply is correct,
checking if the three power supply phases
are around about the same value. Ensure
the cables are firmly connected to the
terminal board and make sure the electrical
cables have not melted. Ensure the suction
grid of the cooling fan of the motor is not
dirty or obstructed with foreign objects
(paper, leaves, rags). To start the machine
again, wait for the motor to cool down.
The machine works with two phases due a
fault in the motor or due to a blown fuse,
therefore have the motor repaired by an
authorised Fiac SpA centre if necessary or
replace the blown fuse. If the ambient
temperature is too high, ventilate the room
and lower the temperature to below 45°C.
Check if the pressure probe is working
correctly and also if the commanding
solenoid valve (NC solenoid valve) is
working regularly.
Check the running direction of the motor
and modify if necessary to avoid irreparable
damages to the compressor. The non-
return valve or minimum pressure valve
could be faulty, therefore have them
replaced by an authorised service centre.
Tighten any loose pipes and joints. It could
also be that the air demand is excessive,
therefore you need to install another
compressor in parallel. The compressor
could be faulty, therefore contact an
authorised Service centre to have it repaired.