Installation manual

FUEL SYSTEM
DIESEL FUEL
Use No.2-D (SAE J313) 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
'R.aycor 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 INJECTION PUMP
I 0 micron filter
element recommended.
The fucl 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.
BLEED SCREW
The bleed sct-ew on the injection pump should be left in the
open position. This will 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 priming 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
FUEL LIFT PUMP
LIGHTLY WIPE
WITH CLEAN FUEL
WHEN INSTALLING
THE NEW FUEL
FILTER CARTRIDGE
INCOMING FUEL
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 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
18