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ENGINE MALFUNCTIONS
The electronic unit overseeing management and control of all operation
of the engine is capable of recognising any malfunctions that may occur,
and of adopting strategies that will allow you to navigate in full safety.
The event, signalled by light-up of the
EDC MALFUNCTION indicator
on the on-board control panels, results in programmed limitation of
power within certain thresholds, set according to the severity of the
case.
In the case of temporary malfunctions the reduction in performance will
remain in force until the engine is stopped.
Accelerator electronic circuit malfunction
When certain problems in the accelerator electric circuit are recognised,
the Electronic Unit controlling the engine adopts a strategy known as
“accelerated minimum speed running”, that will enable navigation to
continue in emergency mode.
The possible operating modes are as follows:
A
. The accelerator lever does not “respond”: the running speed
stabilises at 750 rpm. to allow the vessel to proceed slowly and be
manouevered simply by turning the marine gear on and off,
with-
out accelerating
.
B
. The accelerator lever “responds partially”: the minimum running
speed is set to 750 rpm. When the accelerator lever is moved to
approximately half way, the speed gradually increases up to 2000
rpm.; when the lever is returned to minimum the speed rapidly
decreases to 750 rpm.
NOTE
: In mode “
A
” it is possible to proceed at speeds higher than the
accelerated minimum, managing start/stop, acceleration and
deceleration functions as illustrated in the section MANAGING THE
ENGINE FROM THE RELAY BOX. Should it be necessary to operate
the engine as above,
always
c
omply with the accident
prevention rules
provided in the Section “Controls and
maintenance.
CAUTION!
The engine electronic control unit can adopt safety
strategies at any time during navigation, should
conditions arise that are considered to put the engine
at risk.
When conditions of this kind occur, proceed with the
greatest possible care and attention, first making sure
that all those on board are secure and holding on to
safe hand-holds.
CAUTION!
Management of the engine from the “Relay box”
involves inhibition of the bridge controls; as a result of
this,
when running the vessel from the bridge, the
only way to stop propeller thrust in the engine
quickly
is using the marine gear disengagement lever.
