HOSE 1192488 - Caterpillar

Do not change the coolant until you read and understand the cooling system information in Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations".Failure to do so could result in damage to the cooling system components.
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.
Note: If cooling system samples Level 1 and Level 2 are not performed, and ELC not added, The coolant should be changed every 2 years.Note: This machine was filled at the factory with Caterpillar Extended Life Coolant.If the coolant in the machine is changed to Extended Life Coolant from another type of coolant, see Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations".
Open the right side access door.
Illustration 1 g03354521
Slowly loosen the cooling system pressure cap (1) in order to relieve cooling system pressure. Remove the pressure cap. Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information on Containing Fluid Spillage.
Open the drain valve (2) that is under the radiator. Allow the coolant to drain into a suitable container.
Close the drain valve. Fill the system with a solution that consists of clean water and of cooling system cleaner.
Start the engine. Run the engine for approximately 10 minutes in order to raise the coolant temperature.
Stop the engine. Open the drain valve and allow the cleaning solution to drain into a suitable container.
Flush the cooling system with water until the draining water is transparent.
Close the drain valve.
Add the Extended Life Coolant. Refer to the following topics:
Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations"
Operation and Maintenance Manual, "Capacities (Refill)"
Start the engine. Leave the cooling system pressure cap off. Run the engine in order to expel any air from the system.
Maintain the coolant level within 13 mm (0.5 inch) of the bottom of the filler pipe.
Install the cooling system pressure cap after the thermostat and the coolant level stabilizes.
Stop the engine.
Illustration 2 g01187910
Check the coolant level of the coolant reservoir. Maintain the coolant level between the "FULL" mark and the "LOW" mark.
If additional coolant is necessary, remove the reservoir cap and add the appropriate coolant solution.
Install the reservoir cap.
Close the right side access door. Note: Drained fluids should always be disposed of according to local regulations.