CONT GP 2280915 - Caterpillar

You must read and understand the warnings and instructions contained in the Safety section of this manual before performing any operation or maintenance procedures.Cooling System
Clean/Flush Cooling System
Do not change the coolant until you read and understand the material under the topic Cooling System Specifications in the Maintenance Section of this manual.
Drain the coolant earlier whenever the coolant is dirty or foaming is observed.For engines using ELC, the cooling system needs to be cleaned and flushed every 6000 hours or 4 years. CLEAN WATER is the only system cleaning/flushing agent required if ELC was previously used.When changing to ELC, Caterpillar cleaner should be used. After the cleaning solution has been drained, it is VERY IMPORTANT that a thorough water flush be used to remove ALL of the cleaning agent.
Mixing ELC with other products will reduce the effectiveness of the coolant. This could result in damage to cooling system components. If Caterpillar products are not available and commercial products must be used, make sure they have passed the Caterpillar EC-1 specification for pre-mixed or concentrate coolants and Caterpillar Extender.
For more information on adding Extender to your cooling system, refer to the Cooling System Specifications or contact your Caterpillar dealer.
Do not change the coolant until you read and understand the material under the topic Cooling System Specifications in the Maintenance Section of this manual.
Drain the coolant earlier whenever the coolant is dirty or foaming is observed. The radiator cap is located and accessible on the top left hand side of the hood.1. Remove the radiator cap slowly in order to relieve pressure. 2. Open the drain valve and allow the coolant to drain into a suitable container. The drain valve is located under the machine radiator.3. Close the drain valve. Fill the system with clean water and a 6 to 10 percent concentration of cooling system cleaner.4. Start and run the engine for 90 minutes. Stop the engine and drain the cleaning solution.5. Flush the system with water, with the engine stopped, until the draining water is clear.6. Close the drain valve.7. Add the coolant solution. See the topics Cooling System Specifications, and Lubricant Viscosities and Refill Capacities.8. Start the engine and operate it with the radiator cap off, until the thermostat opens and the level stabilizes.9. Maintain the coolant level in the green range of the sight gauge located on top of the radiator.10. Install the cap.11. Stop the engine.Clean Cooling System Relief Valve
Clean or replace the relief valve if the system overheats or loss of coolant is observed.1. Remove the radiator cap slowly to relieve pressure.2. Inspect the relief valve and the gasket in the radiator cap. Replace the radiator cap, if the valve or the gasket are worn or damaged.