
FUEL
SYSTEM
DIESEL
FUEL
Use
No.2
diesel fuel with a cetane rating
of
45 or higher. Do
not use kerosene
or
home heating fuel.
FUEL
WATER
SEPARATOR
A primary fuel filter
of
the water separating type must be
installed between the fuel tank and the engine to remove
water and other contaminants from the fuel before they can
be
carried to the fuel system on the
el,1gine.
Most installers include a filter/water separator with the instal-
lation package as they are aware
of
the problems that conta-
minants in the fuel can cause.
A typical fuel filter/water separator is illustrated
in
this
diagram. This is the Raycor Model
500 MA. Keep in mind
that
if
a water separator type filter is not installed between the
fuel supply tank and engine-mounted fuel system, any water
in the fuel will affect the fuel pump, engine filter, and injec-
tion equipment. The owner/operator is responsible for making
certain the fuel reaching the engine's injection equipment is
free
of
impurities. This process is accomplished by installing
and maintaining a proper filtration/separation system.
TYPICAL
FUEL
FILTER/WATER
SEPARATOR
FUEL
LIFT
PUMP
Periodically check the fuel connections to and out
of
the pump
and make sure that
no
leakage is present and that the fittings
are tight and secure. The
DC
ground connection at one
of
the
pump's mounting bolts should be clean and well secured by
the mounting bolt to ensure proper pump operation.
A
WARNING:
Fuel
leakage
at
the
fuel
pump
or
its
connections
is
a
fire
hazard
and
should
be
corrected.
Make
sure
proper
ventilation
exists
whenever
serVicing
fuel
system
components.
INTO
DC
WIRING
FUEL
INJECTION
PUMP
The fuel injection pump is the most important component
of
the diesel engine and, therefore, calls for the utmost caution
in
handling. The fuel injection pump has been thoroughly
bench-tested and should not be tampered with.
Speed (hertz) and timing are the only adjustments the
servicing dealer can perform on the injection pump. See the
ENGINE ADJUSTMENT section in this manual. Other types
of
adjustments
or
repairs must be performed by a qualified
injection service shop.
NOTE:
When
servicing
the
injection
pump,
the
service
shop
must be advised that
the
pump is,being used
in
a generator
application.
\
FUEL
FILTER
t
FUEL
SYSTEM
"
FUEL
LIFT
PUMP
FROM
FUEL
FILTER!
WATER
SEPARATOR
Engines
&
Generators
16
)
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