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Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure. |
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Note: This procedure pertains to Caterpillar Diesel Engine Antifreeze/Coolant (DEAC) only. This procedure does not pertain to machines that are shipped from the factory with Extended Life Coolant (ELC) and machines that are maintained with Extended Life Coolant (ELC).
For all cooling system requirements, refer to Special Publications, SEBU6250-11, "Caterpillar Machine Fluids Recommendations".
Use 8T-5296 Coolant Test Kit in order to check the concentration.
| NOTICE |
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Excessive additive (greater than the recommended 6% initial fill) together with concentrations of antifreeze greater than 60% cause deposits to form and can result in radiator tube blockage and overheating. |
Liquid Supplemental Coolant Additive
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| Illustration 1 | g00693428 |
- Remove the two bolts from the access plate. Remove the access plate.
- Slowly loosen the radiator cap in order to relieve system pressure. Remove the radiator cap.
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| Illustration 2 | g00694659 |
- If necessary, drain enough coolant from the radiator in order to allow the addition of the liquid coolant additive.
- Add 0.24 Liters (.50 pint) of cooling system additive for every 38 Liters (10 US Gallons) of engine cooling capacity.
- Open the access cover for the coolant overflow reservoir.
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| Illustration 3 | g00694462 |
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| Illustration 4 | g00694661 |
- Maintain the coolant level between the "FULL" and "LOW" marks on the coolant overflow reservoir.
- Close the access door.
- Install the radiator cap.
- Install the access plate.