
5. Install the drain plug.
6. Replace the thermostat. See Operation and Maintenance Manual, "Cooling System Water Temperature
Regulator - Replace" for the process for replacing the thermostat.
7. Add the coolant solution. Refer to Operation and Maintenance Manual, "Capacities - (Refill)". Refer to
Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations".
Note: Premix the coolant solution before filling the cooling system. The coolant solution
should contain 50 percent coolant and 50 percent distilled water.
Note: Add the coolant solution at a maximum rate of five liters per minute. This will reduce
the chance of trapping air inside the engine block. A large amount of trapped air can cause localized
heating to occur upon start-up. Localized heating may result in engine damage, which may lead to
failure of the engine.
8. Start the engine. Run the engine without the radiator cap until the thermostat opens and the coolant
level stabilizes.
Illustration 4 g00956179
Note: The sight gauge for the coolant level is located on the right side of the radiator on machines
that are equipped with the 3024 engine. The sight gauge for the coolant level is located on the left
side of the radiator on machines that are equipped with the 3044 engine.
9. Maintain the coolant level in the sight gauge.
10. Stop the engine. Inspect the radiator cap and the gasket. Replace the cap if the cap or the gasket is
damaged. Install the radiator cap.
11. Pull the radiator guard downward.
12. Close the engine access door.
Copyright 1993 - 2012 Caterpillar Inc.
Sat Jan 28 2012 04:24:35 GMT-0800 ( ( ))