How does the tanker flow slow?

1. retail fuel dispensers fueling slow; 2. tanker to speed up the oil gun to automatically jump.
For your question seems to be such a phenomenon: the tanker refueling oil flow rate can not be too fast, if too fast, the oil gun will automatically jump (that is, oil gun click about no oil, then fuel card management pump is still rotating).
This is because the general tanker used in the oil gun is self-styled oil gun, self-styled oil gun is characterized by 1. In the bottom of the oil gun has a small hole (inlet), the intake or less intake When the self-styled (jaundels); 2. Vice valve problems also jump gun (this problem is relatively less than the first one). You said this phenomenon is called "oil guns self-styled sensitive."
Treatment: 1. Remove the gun nozzle, check the gun under the hole is smooth, not smooth, including the ventilation pipe broken / debris blockage, etc., to exclude these phenomena; 2 to see the gun into the air (and Gun mouth into the hole connected to the hole) is blocked, whether the normal connection with the gun, etc .; 3. The above two points most likely to occur, generally caused by oil and other dirty, troubleshooting rate of about eight or nine percent. If not, then check the oil gun deputy valve