PleasureCraft Engine Group crusader, Руководство по эксплуатации и техническому обслуживанию владельца, Страница: 52 / 96

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L510001-05
WARNING
Extreme caution must be exercised when servicing
the fuel system and/or replacing fuel fi lter. Gasoline
is extremely fl ammable and highly explosive under
certain conditions. Be sure the ignition key is off and
do not smoke or allow open fl ame in the area while
servicing. Wipe up any spilled fuel immediately.
WARNING
Extreme caution must be exercised when servicing
the fuel system. The fuel system operates under high
pressure. Use caution when removing or replacing
components, as residual pressure may be present.
WARNING
Make sure that there are no fuel leaks before closing
the engine hatch.
ENGINE MAINTENANCE - 11
FUEL SYSTEM DESCRIPTION
Crusader Marine Engines will be equipped with one of
two fuel systems: the Fuel Control Cell (FCC), or the
“Returnless-Type.”
The “Return-Type” fuel system is best described as
having a fuel feed line coming from the fuel tank and fuel
line that returns unused fuel back to the fuel tank.
The “Returnless-Type” fuel system requires a fuel feed
line to supply fuel. Unused fuel is circulated through a
cooler and is eventually returned to the fuel feed line.
Fuel Control Cell (FCC) Fuel System
The Fuel Control Cell (FCC) eliminates vapor lock and
air ingestion caused by fuel tank slosh, and provides the
necessary fi ltration and water separation.
The FCC system incorporates two (2) fuel pumps to
provide an uninterrupted fl ow of fuel to your Crusader
marine engine. Fuel is fed into the FCC bowl by a low-
pressure, high-volume electric fuel pump. This pump
fl ows fuel at a volume much greater than the fuel fl ow
rate required of the high-pressure pump and engine
demands. The high-pressure pump, mounted inside the
FCC bowl, provides the necessary fuel pressure and
volume to maintain proper engine performance. The
FCC constantly has an ample supply of fuel to meet
the idle, cruise and acceleration fuel requirements of the
engine.
The fuel pressure regulator, located on the fuel rail,
controls the fuel pressure, and maintains a constant
pressure across the fuel delivery system. 6.0L engines’
fuel pressure regulator is located inside the FCC,
therefore, does not require a fuel return line from the fuel
rail. Excess fuel, not used by the engine, returns to the
FCC bowl.
The fuel delivered to the engine by the FCC is fi ltered by
a fi lter and water separator element, which surrounds the
high pressure pump inside the FCC bowl.
As indicated above, fuel enters the FCC bowl from
two (2) locations, the low-pressure pump (initial input)
and the fuel pressure regulator (unused, recirculating
fuel). Fuel exits the FCC bowl at two (2) locations, the
high-pressure output to the fuel injection system and all
excess fuel in the FCC bowl is routed back to the tank
via the return line.
WARNING
Visually inspect unit for fuel leaks before operating
the engine. If fuel leaks are present, DO NOT
operate the engine, contact your service center
immediately.