Can the hand pump of dump truck be installed by itself?

No, you are not a professional repairman. Better not move. The safety of tubing is very important. If the oil pump must be of the correct model, first put in the gasket of the oil pump, and apply sealant on the joint surface if necessary, then level the oil pump, put two screws on all three fixing screws, and tighten the three screws evenly, so as to avoid damaging the pump housing by eccentric installation until the positions of the three fixing screws are tightened.

Definition of manual oil pump

There is a high probability that air will enter, and the problem of oil leakage and pressure relief of the hand oil pump is probably caused by the fracture or aging of the rubber pad in the hand oil pump. Secondly, when we install the hand oil pump, if the force is too strong, the thread will slip, so when pumping oil, the oil will be ejected from the place where the thread slips, and the air will enter the hand oil pump.

This situation is likely to be the case of air leakage from the hand oil pump. In addition, the leakage of the hand oil pump pipeline will also cause the hand oil pump to keep pressing hard. The main reason for this situation is that when the hand pump leaks oil, the pressure will become smaller, so the fuel pump can not pressurize the fuel well, and there is a problem with the fuel supply of the vehicle.