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Do not change the coolant until you read and understand the material found in the Operation and Maintenance Manual, SEBU6250, "Caterpillar Machine Fluids Recommendations". Failure to do so could result in damage to the cooling systems components. |
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Mixing ELC with other products reduces the effectiveness of the coolant and shortens coolant life. Use only Caterpillar products or commercial products that have passed the Caterpillar EC-1 specifications for premixed or concentrate coolants. Use only Caterpillar Extender with Caterpillar ELC. Failure to follow these recommendations could result in the damage to cooling systems components. If ELC cooling system contamination occurs see the topic Extended Life Coolant (ELC) in the Operation and Maintenance Manual, SEBU6250, "Caterpillar Machine Fluids Recommendations". |
If the Diesel Engine Antifreeze/Coolant (DEAC) is dirty or if you observe any foaming in the cooling system, drain the coolant before the recommended interval.
- Stop the engine and allow the engine to cool.
- Loosen the pressure cap slowly in order to release pressure. Remove the pressure cap.
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Illustration 1 g00517041 - Radiator drain (1) is located in front of oil drain (2).
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Illustration 2 g00517043 - Open drain valve (3).
- Flush the cooling system with clean water until the draining water is transparent.
- Close drain valve (3).
- Add the coolant solution. Refer to Operation and Maintenance Manual, "Capacities (Refill)".
- Remove the cooling system pressure cap. Start the engine and run the engine. Leave the pressure cap off until the water temperature regulator opens and the coolant level stabilizes.
- Maintain the coolant level within
13 mm (.5 inch) of the bottom of the filler pipe. - Inspect the gasket of the cooling system pressure cap. If the gasket is damaged, replace the gasket.
- Install the cooling system pressure cap.
- Stop the engine.
