CP-323C and CS-323C Paving Compactors Caterpillar


Cooling System Coolant (ELC) - Change

Usage:

CS-323C DAR

------ WARNING! ------

Personal injury can result from hot coolant, steam and alkali.

At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.

Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand.

Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns.

Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.



NOTICE

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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.

Dispose of all fluids according to local regulations and mandates.



NOTICE

Do not change the coolant until you read and understand the material in the Cooling System Specifications section.



NOTICE

Mixing Extended Life Coolant (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, refer to Operation and Maintenance, "Extended Life Coolant (ELC)" under the topic ELC Cooling System Contamination.


Drain the coolant whenever the coolant is dirty. Drain the coolant when foam is observed.

  1. Stop the engine. Allow the cooling system to cool completely.


    Illustration 1g01043556

  2. Slowly loosen the cooling system pressure cap in order to relieve the pressure. Slowly remove the cooling system pressure cap.

  3. The drain valve is located on the bottom corner of the radiator. Open the drain valve. Allow the coolant to drain into a suitable container.

  4. Close the drain valve. Fill the system with a solution which consists of clean water and of cooling system cleaner. The concentration of the cooling system cleaner in the solution should be between 6 percent and 10 percent.

  5. Start the engine. Run the engine for 90 minutes. Stop the engine. Allow the cooling system to cool completely.

  6. Slowly remove the cooling system pressure cap.

  7. Drain the cleaning solution into a suitable container.

  8. While the engine is stopped, flush the system with water. Flush the system until the draining water is transparent.

  9. Close the drain valve.

  10. Add the coolant solution. See the following topics:

    • Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations", "Cooling System Specifications"

    • Operation and Maintenance Manual, "Capacities (Refill)"

    Note: If you are using Caterpillar antifreeze, do not add the supplemental coolant additive at this time and/or change the element at this time.

  11. Start the engine. Run the engine without the cooling system pressure cap until the thermostat opens and the coolant level stabilizes.

  12. Maintain the level of the coolant to 13 mm (0.5 inch) below the bottom of the fill port.

  13. Replace the cooling system pressure cap if the gasket is damaged. Install the cooling system pressure cap.

  14. Stop the engine.

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