PLATE AS 4816629 - Caterpillar

Illustration 1 g01040648
(1) Recovery Bottle with a vented cap
(2) Expansion Tank with a pressure relief cap A pressure type cooling system offers two advantages:
The cooling system can operate safely at a temperature that is higher than the normal boiling point of water.
The cooling system prevents cavitation in the water pump.Cavitation is the sudden formation of low-pressure bubbles by mechanical forces in liquids. The formation of air or steam pockets is more difficult within a pressure type cooling system.The shunt line prevents cavitation by the water pump. The shunt line provides additional flow of coolant to the water pump inlet.The recovery bottle (1) provides space for expansion of the coolant volume while the engine is running. Also, the recovery bottle provides space for expansion during the warm-up cycle. The recovery bottle