Perkins 4006D-E23TA Operation And Maintenance Manual page 46

46
Maintenance Section
General Fuel Information
Aftermarket Fuel Additives
NOTICE
Perkins does not warrant the quality or performance
of non-Perkins fluids and filters. When auxiliary devi-
ces, accessories, or consumables (filters, additives)
which are made by other manufacturers are used on
Perkins products, the Perkins warranty is not affected
simply because of such use.
However, failures that result from the installation
or use of other manufacturers devices, accesso-
ries, or consumables are NOT Perkins defects.
Therefore, the defects are NOT covered under the
Perkins warranty.
Supplemental diesel fuel additives are not
recommended. This is due to potential damage to the
fuel system or the engine. Your fuel supplier or the
fuel manufacturer will add the appropriate
supplemental diesel fuel additives.
Perkins recognizes the fact that additives may be
required in some special circumstances. Fuel
additives need to be used with caution. Contact your
fuel supplier for those circumstances when fuel
additives are required. Your fuel supplier can
recommend the appropriate fuel additive and the
correct level of treatment.
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 14 .
Perkins Diesel Fuel System Cleaner
Perkins Diesel Fuel Cleaner (part number T400012)
is the only fuel cleaner that is recommended by
Perkins.
Perkins fuel cleaner will remove deposits that can
form in the fuel system. 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.
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 action will reduce risk of power
loss, fuel system failures, and related down time of
engines. This cleanliness level is important for new
fuel system designs such as common rail injection
systems and unit injectors. These fuels systems
utilize higher fuel injection pressures and have tight
clearances between moving parts to meet required
stringent emissions regulations. Peak injection
pressures in current fuel injection systems may
exceed 2000 bar (29000 psi). Clearances in these
systems are less than 5 μm. As a result, particle
contaminants as small as 4 μm can cause scoring
and scratching of internal pump and injector surfaces
and of injector nozzle.
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 200 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.
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