During the hot summer months, the cooling system is essential for the normal operation of a guardrail pile driver. If the cooling system fails to function properly and work continues, it can lead to insufficient engine power, reduced lubrication system efficiency, increased wear of parts, or even engine cylinder expansion. In severe cases, it may cause an explosion.

Working Principle of the Cooling System in a Guardrail Pile Driver:

The cooling system consists of a radiator, water pump fan assembly, thermostat components, and connecting hoses. The entire system operates as a forced circulation closed water-cooling type. When the diesel engine is running, the crankshaft pulley drives the water pump via a belt, forcing the cooling water into the engine block's water jacket. This cools the cylinder liners, engine block, and cylinder head, after which the water enters the thermostat. When the outlet water temperature is below 70°C, the thermostat is closed, and the cooling water flows back to the engine block's inlet chamber through small holes at the bottom of the cylinder head and the upper surface of the engine block, thus realizing an internal small circulation. When the outlet water temperature rises above 70°C to 80°C, the thermostat fully opens. At this point, the cooling water flows into the upper chamber of the radiator via the thermostat, moves down along the flat tubes to the lower chamber. During this process, the cooling water is cooled by the air drawn in or expelled by the fan, achieving a cycle of cooling.