Stop; Safety Devices; Low Oil Pressure Safety Device; High Water Temperature Safety Device - Mase IS 11 Manuel D'instructions Et D'entretien

mase
Repeated unsuccessful attempts
to start up the generator can cause an excessive
amount of water to accumulate in the discharge
system and this may seriously damage the engine.
If it is difficult to start up the engine , the attempts
should not be continued too long without first clos-
ing the sea water intake valve.

3.4 Stop

Press the "STOP" button on the control panel to stop the
generator [fig. 2, ref. 11].
Before stopping the generator
run it for a few minutes without connecting it to the
power supply so that the engine and alternator can
cool off.

4 SAFETY DEVICES

The IS series generator has a series of safety devices
that protect it from incorrect use and malfunctions.
When the generator stops because a safety device has
been triggered the light indicating the fault that has
arisen will light up on the engine overload protection
module [fig. 2, ref. 1] of the control panel.

4.1 Low oil pressure safety device

This is triggered when engine oil pressure is insufficient.
If it is triggered the "OIL" warning light comes on [fig. 2,
ref. 4].
It is normally sufficient to replace the amount of oil that
is missing in order to start up the unit again.
The low oil pressure safety device
does not show the level of oil in the sump. The oil
level must therefore be checked everyday.
For the engine to work correctly,
it may be tilted more than 30° for less than 3 minutes
and 25° for unlimited periods, both on the longitudi-
nal and transversal axes. If the engine operates at
greater tilts, there is danger of insufficient lubrica-
tion or the air filter may take in lubricating oil.

4.2 High water temperature safety device

This is triggered and switches off the generator when the
temperature of the engine's refrigerating fluid is too high
or if the sea water circuit fails.
If it is tripped, warning light "°C" [fig. 2, ref. 5] comes on.
The generator must not be started up until the cause of
the fault has been identified and eliminated.

4.3 Alternator thermal overload protection

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This is triggered and switches off the generator to protect
the alternator from thermal overload If it is tripped,
warning light "°C" [fig. 2, ref. 5] comes on.
The generator can only be switched on again after a few
minutes when the temperature of the alternator windings
has returned to normal. The generator must not be
started up until the cause of the fault has been identified
and eliminated.
is triggered the cause must be ascertained and
eliminated and then button "STOP" must be pressed
to reset the control panel (otherwise the signal will
remain stored) to prevent the engine from starting
up.

4.4 Short circuit and overload protection

The generator is protected from short circuits and elec-
trical overloads. A twin-pole cut-out switch [fig. 2, ref. 7]
interrupts the power supply when a short circuit occurs
or when the power supplied exceeds the nominal value.
Before restoring the power supply by pushing up the
switch lever, disconnect the electrical equipment.
4.5 Short circuit and overload protection for the
battery charger DC alternator.
If the battery charger DC alternator is overloaded or has
a short circuit a one-pole cut-out switch [fig. 2, ref. 9]
interrupts the power supply to the 12 volt battery charger.
Before restoring the power supply by pressing the button
on the cut-out switch [fig. 2, ref. 9] have the generator's
starter battery checked by a qualified technician.
4.6 Short circuit protection for the low voltage elec-
tric system.
If the low voltage circuit short circuits a cut-out switch
[fig. 2, ref. 8] will interrupt the circuit and stop the
generator. In the case the warning lights of the engine
protection module will all go out and it will not be possible
to start up the system again.
Before restoring the power supply by pressing the button
located on the cut-out switch [fig. 2, ref. 8] have a
qualified technician eliminate the cause of the short
circuit.

5 MAINTENANCE

the generator switch off the engine and leave it to
cool. Any work must be carried out only by author-
ised personnel.
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If one of the above safety devices
Before carrying out any work on
IS