Use and maintenance of small tanker vane pump

In the process of using a smalldiesel fuel dispenser, vane pump requires frequent inspection and maintenance.
First, when the test machine and cleaning the tank, can not use water or aqueous oil tankers, in order to avoid the cracking damage diesel transfer pump and other components of internal corrosion and low temperatures.
Secondly, we should regularly clean the filter, especially the newly installed machines and pipes and even more so. With the increasing use of time, dirt tank and pipeline will reduce, filter cleaning cycle can be extended, but generally not more than a month.
Always check again vane pump operation is flexible uniform, without abnormal noise, shaft and pump cover at leaks, pulleys for excessive runout and wobble like.
At the same time the relief valve spring can not be adjusted too tight, otherwise it will make the system pressure, noise and vibration increases, and increased pump bearing wear.
Finally belt tension should be appropriate, the tension is too small, the belt slippery, causing oil shortage or not oil, but also easy to wear belt tensioning force is too large, the motor shaft and the pump shaft is exposed to additional load (axial direction of the vertical axis) increases, could easily accelerate the motor bearings, pump bearings and seal wear.

Persistence depends on a large tanker used daily maintenance

Safeguard gas transfer pump, help enhance the life of a small tanker. To know nothing mechanical can permanently using it. Persistent machine using a large part depends on the process used for its maintenance is good or bad. So for those familiar with the use and maintenance of small tankers users, use and maintenance vane pump is generally no big problem. However, issues related to the use of those new users do not know where it is necessary to properly learn about.
A relief valve spring can not be adjusted too tight, or make the system pressure, noise and vibration increases, and increased pump bearing wear.
2, V-belt tension should be appropriate, the tension is too small, the belt slippery, causing oil or no oil shortage, but also easy to wear belt tensioning force is too large, the motor shaft and the cng pump shaft to bear additional load (axial direction of the vertical axis) increases, could easily accelerate the motor bearings, pump bearings and seal wear.

Vane pump failure

① gas fuel pump relief valve is not closed. Due to a foreign body (broken shrapnel, etc.) between the relief valve stuck in the valve and valve seat, causing the fluid inside the loop always do and can not flow in the pump, repairs should remove the spool, remove foreign bodies seat; ② Because the pump with the rotor blades and the shrapnel long do high-speed operation, due to fatigue and wear, fracture, resulting in vane pump discharge increases, even when serious loss of pumping action, the pump should be cleared of debris and repair damaged leaves, shrapnel, re-installed after replacing new; ③ vane pump and gas separator combined with the surface of the pump pad breakdown or anti-loaded, can also cause vane pump high-pressure chamber communicates with the low pressure chamber, resulting in the loss of the oil discharge vane pump function; ④ nozzle pump loose rotor and the rotor shaft, causing the shaft idle, then repair or replace the rotor blades need to pump.