Asphalt pump correct steps

The the asphalt pump steps (1) preparation before use. Gear pumps must be checked before starting the pump and motor. For example, the presence or absence of stuck and not flexible; fillers are tight; each component is securely connected; lubricant (grease) whether the right amount. In particular, is very important, must be opened before the start of the discharge valve and the discharge conduit relevant valves.
   The asphalt pump steps (2) maintenance operation. The asphalt pump operation prohibition to close the valve. The reason is that the liquid is nearly incompressible. Close discharge valve start-up and operation, will pump or piping simmer bad, also may burn out the motor.
  The operation should be used to listen to the sound, the way to look at the meter, mold temperature Keep the work situation, at the same time to ensure that ministries oiled.
   The asphalt pump steps (3) flow regulator. Flow adjustment of the gear pump is mainly using the bypass valve open complex adjustment.
   The asphalt pump steps (4) prohibits Close discharge valve. Gear pump to start and stop the pump, close the discharge valve will hold back bad or burn out the motor. The sake of security, in addition to the pump is equipped with a safety valve outside, and also installed in the pump tube on the road with a reflux tube and opens the valve in the return pipe, in order to reduce the load of the motor startup.