HEAD 9T6417 - Caterpillar

Table 3
Coolant Service Life
Coolant Type Service Life (1)(2)
Cat ELC 12000 Service Hours or Six Years(3)
Commercial coolant that meets the Caterpillar EC-1 Specification 6000 Service Hours or Six Years(4)
Cat DEAC 3000 Service Hours or Three Years
Commercial Heavy-Duty Coolant/Antifreeze that meets "ASTM D6210" 3000 Service Hours or Two Years
Commercial Heavy-Duty Coolant/Antifreeze that meets "ASTM D4985" 3000 Service Hours or One Year
Cat SCA and water(5) 3000 Service Hours or Two Years
Commercial supplemental coolant additive and water(6) . 3000 Service Hours or One Year
(1) Use the interval that occurs first.
(2) Refer to this Operation and Maintenance Manual, "Maintenance Interval Schedule" for the correct interval for replacement of the cooling system water temperature regulator.
(3) Cat ELC Extender must be added at 6000 service hours or one half of the service life of the Cat ELC.
(4) An extender must be added at 3000 service hours or one half of the service life of the coolant.
(5) The concentration of Cat SCA in a cooling system that uses Cat SCA and water should be from 6 to 8 percent by volume.
(6) Consult the supplier for the commercial SCA for instructions on usage. Note: These coolant change intervals are only achievable with annual S O S Services Level 2 coolant sampling and analysis.S O S Services Coolant Analysis
Testing the engine coolant is important to ensure that the engine is protected from internal cavitation and corrosion. The analysis also tests the ability of the coolant to protect the engine from boiling and freezing. S O S coolant analysis can be done at your Caterpillar dealer. Caterpillar S O S coolant analysis is the best way to monitor the condition of your coolant and your cooling system. S O S coolant analysis is a program that is based on periodic samples.S O S Services Coolant Analysis (Level 1)
A coolant analysis (Level 1) is a test of the following properties of the coolant:
Glycol concentration for freeze protection and boil protection
Ability to protect from erosion and corrosion
pH
Conductivity
Visual analysis
Odor analysisFor information about performing this maintenance, refer to this Operation and Maintenance Manual, "Coolant System Coolant Sample (Level 1) - Obtain". For information about performing this maintenance, refer to this Operation and Maintenance Manual, "Maintenance Interval Schedule".S O S Services Coolant Analysis (Level 2)
A coolant analysis ( Level 2) is a comprehensive chemical evaluation of the coolant. The S O S coolant analysis ( Level 2) has the following features:
Full coolant analysis (Level 1)
Identification of metal corrosion and of contaminants
Identification of buildup of the impurities that cause corrosion
Identification of buildup of the impurities that cause scaling
Determination of the possibility of electrolysis within the cooling system of the engineContact your local Caterpillar dealer for additional information concerning the S O S Services Coolant Analysis program.Coolant Capacities
To properly maintain the cooling system, the total cooling system capacity must be determined. The total cooling system capacity will vary between individual installations. The total cooling system capacity can include the following components: engine, expansion tank, heat exchanger, radiator, keel cooler and piping.Refer to the specifications that are provided by Caterpillar or the