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76
Maintenance Section
Fluid Recommendations
Adding the SCA to Heavy-Duty Coolant
at the Initial Fill
Use the equation that is in Table 18 to determine the
amount of SCA that is required when the cooling
system is initially filled.
Table 18
Equation For Adding The SCA To The Heavy-Duty Coolant At
The Initial Fill
V × 0.045 = X
V is the total volume of the cooling system.
X is the amount of SCA that is required.
Table 19 is an example for using the equation that is
in Table 18 .
Table 19
Example Of The Equation For Adding The SCA To The Heavy-
Duty Coolant At The Initial Fill
Total Volume of the
Multiplication
Cooling System (V)
Factor
15 L (4 US gal)
× 0.045
Adding The SCA to The Heavy-Duty
Coolant For Maintenance
Heavy-duty antifreeze of all types REQUIRE periodic
additions of an SCA.
Test the antifreeze periodically for the concentration
of SCA. For the interval, refer to the Operation and
Maintenance Manual, "Maintenance Interval
Schedule" (Maintenance Section). Cooling System
Supplemental Coolant Additive (SCA) Test/Add.
Additions of SCA are based on the results of the test.
The size of the cooling system determines the
amount of SCA that is needed.
Use the equation that is in Table 20 to determine the
amount of SCA that is required, if necessary:
Table 20
Equation For Adding The SCA To The Heavy-Duty Coolant
For Maintenance
V × 0.014 = X
V is the total volume of the cooling system.
X is the amount of SCA that is required.
Table 21 is an example for using the equation that is
in Table 20 .
Table 21
Example Of The Equation For Adding The SCA To The Heavy-
Total Volume of the
Cooling System (V)
Cleaning the System of Heavy-Duty
Antifreeze
• Clean the cooling system after used coolant is
• Clean the cooling system whenever the coolant is
Amount of SCA
Fluid Recommendations
that is Required
(X)
(Diesel Exhaust Fluid (DEF))
0.7 L (24 oz)
General Information
Diesel Exhaust Fluid (DEF) is a liquid that is injected
into the aftertreatment system before Selective
Catalytic Reduction (SCR). This system of injecting
the DEF into the exhaust will cause a chemical
reaction in the SCR system. The Nitrogen Oxide
(NOx) molecules in the exhaust are converted to
elemental nitrogen and water. This conversion will
reduce the emission of the engine.
Specification
DEF that is used in Perkins engines must meet the
ISO specification 22241-1 for quality. The ISO
specification 22241-1 requirements are met by many
brands of DEF, including the ones that carry the
AdBlue or API certification."
The document series ISO standard 22241 will give
information on quality requirements, test methods,
handling, transportation, storage, and refilling
interface.
Spillage
Care should be taken when dispensing DEF. Spills
should be cleaned immediately. All surfaces should
be wiped clean and rinsed with water.
DEF that has been spilt will crystallize when the
water within the liquid evaporates. Spilt DEF will
attack paint and metal. If DEF is spilt, wash the area
with water.
Duty Coolant For Maintenance
Multiplication
Factor
15 L (4 US gal)
× 0.014
drained or before the cooling system is filled with
new coolant.
contaminated or whenever the coolant is foaming.
SEBU9068-03
Amount of SCA
that is Required
(X)
0.2 L (7 oz)
i07636462
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