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Cooling system coolant additive contains alkali. To help prevent personal injury, avoid contact with the skin and eyes. Do not drink cooling system coolant additive. |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" and to Special Publication, GECJ0003, "Cat Shop Supplies and Tools" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to applicable regulations and mandates. |
Note: Caterpillar recommends an S·O·S coolant analysis (Level 1).
Test the Concentration of the SCA
Test the concentration of the SCA with a 298-5311 Coolant Nitrite Test Kit for SCA or perform an S·O·S Coolant Analysis. The test kit includes the following items: a tool for the testing, 30 ampoules for testing nitrite, instructions and a case. 294-7420 Test Kit contains the refill ampoules for the 298-5311 Coolant Nitrite Test Kit . Use the instructions that are included with the test kit in order to properly conduct the testing.
Refer to this Operation and Maintenance Manual, "Maintenance Interval Schedule" for the times at which the procedures should be conducted. Test the concentration of the SCA more frequently if more frequent testing is indicated by the results of the S·O·S Coolant Analysis.
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Do not exceed the recommended eight percent supplemental coolant additive concentration. |
Add the SCA, If Necessary
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Pressurized System: Hot coolant can cause serious burns. To open the cooling system filler cap, stop the engine and wait until the cooling system components are cool. Loosen the cooling system pressure cap slowly in order to relieve the pressure. |
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- Remove the cooling system filler cap slowly.
- If necessary, drain some water in order to allow space for the addition of the SCA.
Note: Always dispose of fluids according to local regulations.
- Add the proper amount of SCA. See this Operation and Maintenance Manual, "Refill Capacities and Recommendations" for the instructions on finding the correct amount of SCA to be added.
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Excessive supplemental coolant additive concentration can form deposits on the higher temperature surfaces of the cooling system, reducing the engine's heat transfer characteristics. Reduced heat transfer could cause cracking of the cylinder head and other high temperature components. Excessive supplemental coolant additive concentration could also result in blockage of the heat exchanger, overheating, and/or accelerated wear of the water pump seal. Do not exceed the recommended amount of supplemental coolant additive concentration. |
- Clean the cooling system filler cap. Install the cooling system filler cap.