SEBU8121 51
Maintenance Section
Refill Capacities
Use the equatio
n that is in Table 17 to determine the
amount of Perkins SCA that is required when the
cooling system is initially filled.
Table 1 7
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.
Table18isanexampleforusingtheequationthat
is in Table 17.
Table 1 8
Ex
ample Of The Equation For Adding The SCA To
The Heavy-Duty Coolant At The Initial Fill
Total Volume
of the Cooling
System (V)
Multiplication
Factor
Amount of SCA
that is Required
(X)
15L(4USgal) ×0.045 0.7 L (24 oz)
Adding The SCA to The Heavy-Duty
Coolant For Maintenan ce
Heavy-duty coolant/antifreeze of all types REQUIRE
periodic additions of an SCA.
Test the coolant/antifreeze periodically for the
concentration of SCA. For the interval, refer to the
Operation and Maintenance Manual, “Maintenance
Interval Schedule” (Maintenance Section). Test the
concentration of SCA.
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 19 to determine the
amount of Perkins SCA that is required, if necessary:
Table 1 9
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.
Table20isanexampleforusingtheequationthat
is in Table 19.
Table 20
Example Of The Equation For Adding The SCA To
The Heavy-Duty Coolant For Maintenance
Total Volume
of the Cooling
System (V)
Multiplication
Factor
Amount of SCA
that is Required
(X)
15 L (4 US gal)
×0.014
0.2 L (7 oz)
Cleaning the System of Heavy-Duty
Coolant/Antifreeze
Perkins cooling system cleaners are designed
to clean the cooling system of harmful scale
and corrosion. Perkins cooling system cleaners
dissolve mineral scale, corrosion products, light oil
contamination and sludge.
•
Clean the cooling system after used coolant is
drained or before the cooling system is filled with
new coolant.
•
Clean the cooling system whenever the coolant is
contaminated or whenever the coolant is foaming.
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