Regal 53 SC Owner's Manual page 54

FUEL SYSTEM INTRODUCTION
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 Cummins product features the engines,
and the MerCruiser Zeus transmissions are all protected
by a fault handling system. 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.
Note that Cummins Inc. recommends the use of
ASTM number 2D fuel. The use of number 2 diesel
fuel will result in optimum engine performance.
It is important to read and understand your engine
and propulsion owner's manuals in order to react
to a fault code should a malfunction display on the
instrumentation or an alarm sound.
WARNING
!
PREVENT INJURY, DEATH,
AND/OR PROPERTY DAMAGE!
LEAKING FUEL IS A FIRE AND EXPLOSION
HAZARD. INSPECT SYSTEM REGULARLY.
EXAMINE FUEL SYSTEM FOR LEAKS OR
CORROSION AT LEAST ANNUALLY.
WARNING
!
PREVENT INJURY, DEATH,
OR PROPERTY DAMAGE!
READ AND UNDERSTAND
THE PROPULSION OWNER'S MANUAL
BEFORE ATTEMPTING
TO OPERATE THE VESSEL.
WARNING
!
PREVENT INJURY, DEATH, AND/OR
PROPERTY DAMAGE
DUE TO FIRE OR EXPLOSION!
DO NOT MIX GASOLINE, ALCOHOL,
OR GASOHOL WITH DIESEL FUEL.
CAUTION
!
DUE TO THE CLOSE TOLERANCES
OF DIESEL INJECTION SYSTEMS.
IT IS EXTREMELY IMPORTANT THAT THE
FUEL BE KEPT CLEAN AND FREE OF DIRT
OR WATER. DIRT OR WATER IN THE SYSTEM
CAN CAUSE HEAVY DAMAGE TO THE
INJECTORS OR THE FUEL INJECTION PUMP.
WARNING
!
PREVENT INJURY, DEATH, AND/OR
PROPERTY DAMAGE DUE TO FIRE OR
EXPLOSION. DO NOT STORE
GASOLINE OR OTHER FLAMMABLE
LIQUIDS ON BOARD THE VESSEL!
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Chapter 4