Asphalt pumps are used to transfer asphalt, a type of paving material, from storage tanks to paving equipment. Some of the main causes of failure in asphalt pumps include:

1. Wear and tear: Asphalt pumps are subjected to high temperatures and abrasive materials, which can cause wear and tear on the pump components. This can lead to failure of the pump over time.
2. Lack of maintenance: Proper maintenance, including regular cleaning and lubrication of the pump, is essential to extend the life of the pump. Failure to properly maintain the pump can lead to premature failure.
3. Corrosion: Asphalt contains chemicals that can cause corrosion of the pump components. This can lead to failure of the pump if not properly protected.
4. Improper installation: If the pump is not installed correctly, it can lead to failure or poor performance.
5. Overloading: If the pump is used beyond its rated capacity or is subjected to too much pressure, it can fail.

Overall, proper installation, maintenance, and operation of the asphalt pump are essential to prevent failure and extend the life of the pump.

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