ELECTRICAL AR 2222573 - Caterpillar

Do not change the coolant until you read and understand the material found in the Operation and Maintenance Manual, "Cooling System Specifications" section. Failure to do so could result in damage to the cooling systems components.
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 pre-mixed 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 ELC Cooling System Contamination of this operation and maintenance manual.
If the coolant in the machine is changed to Extended Life Coolant from another type of coolant, see Operation and Maintenance Manual, "Extended Life Coolant Cooling System Maintenance" .
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Unlatch the engine hood and raise the engine hood.
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Slowly loosen the cooling system pressure cap in order to relieve system pressure. Remove the pressure cap.
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Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information on containing fluid spillage.
Open the drain valve that is under the radiator. Allow the coolant to drain into a suitable container.
Flush the cooling system with clean water until the draining water is transparent.
Close the drain valve.
Add the Extended Life Coolant. Refer to the following topics:
Operation and Maintenance Manual, "Cooling System Specifications"
Operation and Maintenance Manual, "Refill Capacities"
Start the engine. Operate the engine without the cooling system pressure cap until the water temperature regulator opens and the coolant level stabilizes.
Maintain the coolant level within 13 mm (.5 inches) of the bottom of the filler pipe.
Inspect the gasket of the cooling system pressure cap. If the gasket is damaged, replace the pressure cap.
Install the cooling system pressure cap.
Stop the engine.
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Open the access door on the left side of the machine.
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(A) "FULL" level (B) "LOW" level
Check the coolant level of the coolant reservoir. Maintain the coolant level between the "FULL" mark and the "LOW" mark.
If additional coolant is necessary, remove the reservoir cap and add the appropriate coolant solution.
Install the reservoir cap.
Close the engine hood and latch the engine hood.
Close the access door.