| NOTICE |
|---|
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. |
| NOTICE |
|---|
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. 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 Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates. |
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.
- The radiator drain (1) is located behind the oil drain (2) .
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| Illustration 1 | g00400065 |
- Remove the bolt (3) in order to remove the cover plate for the radiator drain. open the drain valve.
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| Illustration 2 | g00400068 |
- Flush the cooling system with clean water until the draining water is transparent.
- Close the drain valve. Replace the cover.
- Add the coolant solution. Refer to Operation and Maintenance Manual, "Refill Capacities" .
- 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.