Perkins 2806A-E18TA Operation And Maintenance Manual page 66

66
Maintenance Section
General Fuel Information
Note: For the best results, your fuel supplier should
treat the fuel when additives are required. The
treated fuel must meet the requirements that are
stated in table 13 .
Perkins Diesel Fuel System Cleaner
Perkins Diesel Fuel Cleaner (part number T400012)
is the only fuel cleaner that is recommended by
Perkins.
If biodiesel or biodiesel blends of fuel are to be used,
Perkins require the use of Perkins fuel cleaner. For
more information on the use of biodiesel and
biodiesel blends refer to "Biodiesel Fuel".
Perkins fuel cleaner will remove deposits that can
form in the fuel system with the use of biodiesel and
biodiesel blends. These deposits can create a loss of
power and engine performance.
Once the fuel cleaner has been added to the fuel, the
deposits within the fuel system are removed after 30
hours of engine operation. For maximum results,
continue to use the fuel cleaner for up to 80 hours.
Perkins fuel cleaner can be used on an on-going
basis with no adverse impact on engine or fuel
system durability.
Detailed instructions on the rate of which the fuel
cleaner must be use are on the container.
Diesel Fuel Conditioner
Fuels that are per specifications detailed in this
Operation and Maintenance Manual, "Fluid
Recommendations" or the Perkins Diesel Engines
Fluids Recommendations, M0113102 should not
require the use of additives. In case a fuel conditioner
is needed to improve certain fuel properties, consult
with your fuel supplier or with a reputable provider.
Contamination Control
Recommendations for Fuels
Fuels of "ISO 18/16/13" cleanliness level or cleaner
as dispensed into the engine or application fuel tank
should be used. This standard of will reduce risk of
power loss, fuel system failures, and related down
time of engines. This cleanliness level is important for
unit injector fuel system. The fuel system utilizes
higher fuel injection pressures and have tight
clearances between moving parts to meet required
stringent emissions regulations. As a result, particle
contaminants as small as 4 µm can cause scoring
and scratching of internal pump and injector surfaces
and of injector nozzles.
Water in the fuel causes cavitation, corrosion of fuel
system parts, and provides an environment where
microbial growth in the fuel can flourish. Other
sources of fuel contamination are soaps, gels, or
other compounds that may result from undesirable
chemical interactions in the fuels, particularly in
ULSD. Gels and other compounds can also form in
biodiesel fuel at low temperatures or if biodiesel is
stored for extended periods. The best indication of
microbial contamination, fuel additives, or cold
temperature gel is rapid filter plugging of bulk fuel
filters or application fuel filters.
To reduce downtime due to contamination, follow
these fuel maintenance guidelines.
• Use high-quality fuels per recommended and
required specifications
• Fill fuel tanks with fuels of "ISO 18/16/13"
cleanliness level or cleaner, in particular for
engines with common rail and unit injection
systems. When you refuel the tank, filter the fuel
through a 4 µm absolute filter (Beta 4 = 75 up to
200) in order to reach the recommended
cleanliness level. This filtration should be located
at the device that dispenses the fuel to the fuel
tank. In addition, filtration at the dispensing point
should remove water to ensure that fuel is
dispensed at 500 ppm water or less.
• Perkins recommends the use of bulk fuel filter /
coalescer units which clean the fuel of both
particulate contamination and water in a single
pass.
• Ensure that you use Perkins Advanced Efficiency
Fuel Filters. Change your fuel filters per
recommended service requirements or as needed.
• Drain your water separators daily.
• Drain your fuel tanks of sediment and water per
the Operation and Maintenance Manual
instructions.
• Install and maintain a properly designed bulk filter
/ coalescer filtration system. Continuous bulk
filtration systems may be required to ensure that
dispensed fuel meets the cleanliness target.
Consult your Perkins distributor for availability of
bulk filtration products.
• Centrifugal filters may need to be used as a pre-
filter with fuel that is severely contaminated with
gross amounts of water and/or large particulate
contaminants. Centrifugal filters can effectively
remove large contaminants. Centrifugal filters may
not be able to remove the small abrasive particles
required to achieve the recommended "ISO"
cleanliness level. Bulk filter / coalescers are
necessary as a final filter to achieve the
recommended cleanliness level.
SEBU9074-06