GENERATOR AR 1492435 - Caterpillar

Do not change the coolant until you read and understand the material found in the Special Publication, SEBU6250, "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 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 Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations".
If the coolant in the machine is changed to Extended Life Coolant from another type of coolant, see Special Publication, SEBU6250, "Extended Life Coolant Cooling System Maintenance".
Illustration 1 g00101813
Open the left access door.
Illustration 2 g00101796
Unlatch the engine hood and raise the engine hood.
Illustration 3 g00544510
Slowly loosen the pressure cap that is on the radiator in order to release pressure from the cooling system.
Remove the pressure cap.
Illustration 4 g00544378
Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information that pertains to containing fluid spillage.
Open the drain valve and allow the coolant to drain into a suitable container. The drain valve is under the radiator.
Flush the cooling system. Follow Step 6.a through Step 6.h in order to properly flush the cooling system.
Close the drain valve.
Fill the cooling system with clean water.
Install the pressure cap.
Start the engine and run the engine until the engine reaches operating temperature.
Stop the engine and allow the engine to cool.
Loosen the pressure cap slowly in order to relieve any pressure in the cooling system.
Open the drain valve that is underneath the radiator and allow the coolant to drain into a suitable container.
Flush the radiator 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, SEBU6250, "Cooling System Specifications"
Operation and Maintenance Manual, "Capacities (Refill)"
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.
Illustration 5 g00545226
(1) "FULL" (2) "LOW"
Check the coolant reservoir. Maintain the coolant level between "FULL" mark (1) and "LOW" mark (2) .
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 left access door.