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Sinotruk Howo Parts Ribbed Fan Belt V Belt VG2600020251 6PK1423 Shaanxi auto Delong heavy duty engine 290 HP fan belt

VG2600020251

Carton

1, the high and low speed of the car fan is "uniquely" controlled by the thermal switch (F18), which has two gears and is installed on the water tank to detect the water temperature. It sends two signals to J293, which then conducts different open circuits to control the high and low speed of the electronic fan.
2, open the air conditioning, both fans should turn. However, it should be noted that air conditioning and electronic fan are two relatively independent systems, which are controlled by two computers, named J301 (air conditioning) and J293 (electronic fan). J301 simply gives J293 a signal to force two electronic fans to start. Other than that, there's not much of a connection.

The car fan is installed behind the water tank (near the engine compartment side), and when opened, it pulls the wind from the front of the water tank; However, there are also individual models of fans installed in the front (outside) of the water tank, and the wind is blown in the direction of the water tank when it is opened. The start of the fan is automatically opened or stopped according to the water temperature, when the speed is fast, due to the air pressure difference between the front and back of the vehicle, it is enough to play the role of the fan and maintain the water temperature at a certain degree, so the fan can not work at this time.