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.
FUELniATERSEPARATOR
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
engine. .
Mo~t!Jtstallers
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
below.
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
injection
equip-
ment.
The owner/operator
is
responsible
for
making
certain
the
fuel
reaching
the
engine'iHnjection
equipment
is
free
of
impurities. This
process
is
accomplished
by
installing
,and
maintaining a
proper
filtration/separation
system.
OWNER
INSTALLED
FUEL
WATER/SEPARATOR
FILTER
FUEL
LIFT
PUMPS
Periodically
check
the
fuel
connectioil:,;
to
and
out
of
the
pump
and
make
sure
that
no
leakage
is
present
and
that
the
fittings
are
tight
.and
~ure.
The
DC
ground
connection
at
one
ofthe
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.
FUEL
LIFT
PUMPS
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.
,
NOTE:
The
injection pumps should only
be
serviced by
an
authorized fuel injection service
facility.
TYPICAL
FUEL
INJECTION
PUMP
[25
KW
SHOWN]
TO
FUEL
FILTER
NOTE:
THE
FUEL
LIFT
PUMP
ON
THE
32
KW
IS
AN
INTEGRAL
PART
OF
THE
FUEL
INJECTION
PUMP.
Engines & Generators
.16