9
Systems
DIESEL FUEL SYSTEM- GENERAL
In this section, the basic diesel fuel system components
are introduced. The fuel system includes the fuel tank, fuel
supply and return lines, fi ll and vent fi ttings along with fuel
fi lters and the ventilation system.
Diesel fuel today is processed in a different manner than
it was a few years ago. As a result it has become more
unstable and the product shelf life has been shortened.
A summary of so called diesel fuel “algae” along with its
causes and effects will be outlined in this chapter.
As part of the product features the diesel engines, EVC
system and the transmissions are all protected by a fault
handling system should a malfunction develop. A portion
of this fault system is used to monitor the diesel fuel
system.
Select codes warn the captain with a “buzzer” sound while
others will display on the helm tachometer, display, or alarm
panel. The “pop-up” will alternate between the cause of
the fault and a task to perform to aid in eliminating the
situation.
It is important to read and understand your propulsion
owner’s manual in order to react to a fault code should
a malfunction display on the instrumentation or an
alarm sound.
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