PUMP GP-GEAR 3G2875 - Caterpillar

Flush the cooling system and clean the cooling system before the recommended maintenance interval if the following conditions exist:
Coolant is dirty.
Coolant is heavily contaminated by oil.
Coolant is heavily contaminated by fuel.
The engine overheats frequently.
Foaming is observed.
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 is a good opportunity to replace any of the following items, if a replacement is needed: the water pump, the water temperature regulator and the hoses. Drain
Stop the engine and allow the engine to cool.
Take extreme care to loosen the cooling system filler cap slowly so you can relieve any pressure. Carefully remove the cooling system filler cap.
Open the cooling system drain valve (if equipped). If the cooling system is not equipped with a drain valve, remove the following cooling system drain plugs:
Drain plug for water temperature regulator
Drain plug for oil cooler
Allow the coolant to drain.
Dispose of used engine coolant properly or recycle. Various methods have been proposed to reclaim used coolant for reuse in engine cooling systems. The full distillation procedure is the only method acceptable by Caterpillar to reclaim the used coolant.
For information regarding the disposal and the recycling of used coolant, consult your Caterpillar dealer or consult Caterpillar Service Technology Group:Outside Illinois 1-800-542-TOOL
Inside Illinois 1-800-541-TOOL
Canada 1-800-523-TOOL
Flush
Flush the cooling system with clean water in order to remove any debris.
Close the drain valve (if equipped). If the cooling system is not equipped with a drain valve, clean the drain plugs and the drain plug fittings. Reinstall these drain plugs:
drain plug for water temperature regulator
drain plug for oil cooler Note: Refer to