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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. |
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Adding coolant to an overheated engine could result in damage to the engine. Allow the engine to cool before adding coolant. If the machine is to be stored in, or shipped to, an area with freezing temperatures, the cooling system must be protected to the lowest outside (ambient) temperature. The engine cooling system is normally protected to a minimum of |
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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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
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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. |
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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". |
See Special Publication, SEBU6250, "Cooling System Specification" for the cooling system requirements.
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| Illustration 1 | g00517240 |
- Loosen the radiator cap slowly in order to relieve pressure. Remove the radiator cap.
- Observe the sight glass in order to check the coolant level. If necessary, drain enough coolant in order to allow the addition of the liquid coolant additive.
Note: Make sure that the coolant is drained into a suitable container.
- Add
0.24 Liters (0.50 pint) of cooling system additive for every38 Liters (10 US Gallons) of engine cooling capacity. - Clean the radiator cap and inspect the radiator cap. Install the radiator cap.
- Start the engine and check the cooling system for leaks. Allow the coolant level to stabilize.
- If necessary, add premixed coolant in order to maintain the coolant level at the "FULL" mark in the sight glass.
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| Illustration 2 | g00517241 |