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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. |
If an Extended Life Coolant was previously used, flush the cooling system with clean water. No other cleaning agents are required. Use the following procedure to change the Extended Life Coolant.
- Slowly loosen cooling system pressure cap (1) in order to relieve system pressure. Remove the cooling system pressure cap.
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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.
- Place drain hose (3) into a suitable container. Open drain valve (2) on the bottom of the radiator. Allow the coolant to drain into a suitable container.
- Flush the cooling system with clean water until the draining water is clean. Close the drain valve.
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NOTICE Topping off or mixing Cat ELC with other products that do not meet Caterpillar EC-1 specifications reduces the effectiveness of the coolant and shortens coolant service life.
Use only Caterpillar products or commercial products that have passed the Caterpillar EC-1 specification for pre-mixed or concentrate coolants. Use only Extender with Cat ELC.
Failure to follow these recommendations can result in shortened cooling system component life.
- Add the Extended Life Coolant.
Reference: For the refill capacity of the cooling system, refer to Operation and Maintenance Manual, "Capacities (Refill)".
Reference: For information about adding Extender to your cooling system, refer to Special Publication, SEBU6250 or consult your Caterpillar dealer.
- Start the engine. Run the engine without the cooling system pressure cap until the water temperature regulator opens and the coolant level stabilizes.
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Illustration 2 g01037092 - Maintain the coolant level between the "FULL" and "ADD" marks on the coolant overflow reservoir.
- Install the cooling system pressure cap. Close the engine hood.
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| Illustration 1 | g01037085 |
