Installation manual
FUEL 
SYSTEM 
DIESEL 
FUEL 
Use 
No.2-D 
(SAE 
J3l3) 
diesel fuel with a Cetane rating 
of 
#45 
or 
higher. Grade 
of 
diesel 
fuel 
according to ASTM D975. 
In conjunction with Ultra Low Sulphur Diesel. 
Use 
an 
additive such as Diesel Kleen + Cetane Boost to help restore 
lubricity back into the diesel. 
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 
engine. 
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 
~uel 
supply 
tank and engine-mounted fuel system, 
any 
water 
l~ 
the 
fuel 
will 
affect the 
fuel 
pump, 
engine 
filter, 
and 
injec-
lIon equipment. The owner/operator 
is 
responsible 
for 
making 
certain 
the 
fuel 
reaching 
the 
enSine'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 
INJECTION 
PUMP 
10 
micron 
filter 
element 
recommended. 
The fuel injection pump is 
the 
most important component 
of 
the diesel engine, requiring the utmost caution in handling. 
The fuel injection pump has been thoroughly bench-tested 
and the owner-operator is cautioned not to attempt 
to 
service 
it. 
If 
it requires servicing, remove it and take it to 
an 
authorized fuel injection 
pump 
service 
facility. 
Do 
not 
attempt 
to 
disassemble and repair it. Do not send the timing 
shims with the injection pump, leave on engine. 
BlEEOSCREW 
The bleed screw on the injection 
pump 
should be left 
in 
the 
open position. This wili then 
allow 
for ease 
in 
priming the 
engine's 
fuel 
system and during engine operation allow for 
air in the system 
to 
be delivered 
to 
the fuel tank through the 
fuel return system. 
ENGINE 
FUEL 
filTER 
Periodically 
check 
the 
fuel 
connections and the 
filter 
bowl for 
leakage. 
Change 
the 
filter 
element 
after 
the first 
50 
hours. See 
the 
MAINTENANCE 
SCHEDULE. 
Changing 
the 
Filter 
Cartridge 
1.  Shut 
off 
the fuel 
supply. 
NOTE: 
Slide 
a plastic 
bag 
up 
over 
the 
fuel 
filter 
cartridge 
as it 
will 
be 
full 
of 
fuel. 
2.  Unscrew 
the 
cartridge from its housing and remove the 
cartridge 
and 
its gasket.  . 
3.  Wipe 
both 
the housing 
and 
the 
top 
of the 
new 
cartridge 
with 
clean 
fuel. 
4. 
To 
help 
reduce fuel system priming, fill the fuel filter 
with 
diesel 
before installing. This will  dramatically 
reduce the pliming 
time 
needed to purge air from the 
engines 
fuel system before starting. 
5.  Install the 
new 
cartridge and 
spin 
on 
real 
tight 
by hand. 
6. 
Open 
the 
fuel 
supply. 
Run 
the engine to inspect for leaks. 
FUEL 
FILTER 
CARTRIDGE 
JtJOOCl 
FUEL 
LIFT 
PUMP 
LIGHTLY 
WIPE 
WITH 
CLEAN 
FUEL 
WHEN 
INSTALlING 
THE 
NEW 
FUEl 
FILTER 
CARTRIDGE 
LIFT 
PUMP 
Periodically check the 
fuel 
connections 
to 
and 
out 
of 
the 
pump 
and 
make 
sure that 
no 
leakage 
is 
present and tllat the 
fittings 
are 
tight 
and secure. The 
DC 
ground connection at 
one 
of 
the 
pumps 
mounting bolts should be 
clean 
and well 
secured 
by 
the 
mounting bolts 
to 
ensure proper 
pump 
operations. 
INLET 
FUEL 
FilTER 
To 
ensure 
clean 
fuel into the fuel lift pump, 
there 
is 
a small 
in-line 
fuel 
filter 
connected 
to 
the fuel lift 
pump 
elbow. 
This 
filter 
should 
be replaced every 
250 
hours of 
operation. 
Engines & Generators 
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