Clean the cooling system and flush the cooling system before the recommended maintenance interval if the following conditions exist:
- The engine overheats frequently.
- Foaming is observed.
- The oil has entered the cooling system and the coolant is contaminated.
- The fuel has entered the cooling system and the coolant is contaminated.
|Use of commercially available cooling system cleaners may cause damage to cooling system components. Use only cooling system cleaners that are approved for Caterpillar engines.|
Note: Inspect the water pump and the water temperature regulator after the cooling system has been drained. This procedure is a good opportunity to replace the water pump, the water temperature regulator, and the hoses, if necessary.