315B L Excavator Caterpillar

Note: This machine was filled at the factory with Caterpillar Extended Life Coolant. The following information pertains to machines which have been subsequently filled with Caterpillar Diesel Engine Antifreeze/Coolant (DEAC) or a commercial equivalent.

Check the concentration of the coolant. Use 8T-5296 Coolant Conditioner Test Kit to check the concentration.

If necessary, add Caterpillar Supplemental Coolant Additive (SCA) .

Liquid Supplemental Coolant Additive

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1. Unlatch the engine hood and raise the engine hood.

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

Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information on containing fluid spillage.

3. It may be necessary to drain some coolant from the radiator so that Caterpillar Supplemental Coolant Additive can be added to the cooling system.

   Note: Dispose of drained fluids according to local regulations.

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4. Open the air bleed valve that is located on the coolant line on the top of the engine.

5. Add the Supplemental Coolant Additive to the cooling system. Refer to the following topics for the proper amount of Caterpillar Supplemental Coolant Additive :
   • Operation and Maintenance Manual, "Supplemental Coolant Additive (SCA)"

   • Operation and Maintenance Manual, "Refill Capacities"

6. Close the air bleed valve.

7. Inspect the gasket of the cooling system pressure cap. If the gasket is damaged, replace the pressure cap.

8. Install the cooling system pressure cap.

9. Close the engine hood and latch the engine hood.