When refueling operation, the noise and vibration is relatively large.

1, nozzle pump separator filter clogged pipeline is too long, too small and cause vane pump load increase, noise; 2, vane pump relief valve stuck open or adjustment screw up too tight cause; 3, vane pump vanes stuck, leading to increased oil output ripple extent, so that the machine-generated noise and vibration; 4 blades or spring (film) is damaged, causing the tanker noise increases; 5, Zhang belt too tight, sliding vane pump bearing wear, resulting in increased noise tanker; 6, the machine pipe vibration, the solution is to replace the shock hose; 7, when the natural frequency of the output pulse frequency and the oil tanker similar, will lead to the fuel dispensing pump, noise and vibration increases. The workaround is to adjust the vane pump relief valve or replace the oil and gas division, with the racks from vibration pad; 8, motor noise increases. Replace the explosion-proof motor; 9, to the corner of loose bolts or other fasteners tanker loose. Re-tighten the bolts to the corner with the other loose fasteners.