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The reason why the gasoline pump is always broken is that the shell is overhauled.

The reason why the gasoline pump is always broken is as follows:. 1. Oil quality is the most direct cause of oil pump damage. Solution: Refueling in strict accordance with the oil number recommended by the manufacturer, and keeping the car free of oil is fundamental. 2. Unreasonable behavior during refueling may cause damage to the oil pump. Solution: Be sure to refuel normally according to regulations. 3. When driving at low oil level for a long time, the fuel pump can not be cooled, the oil quality is poor, there are many impurities, and the oil pump is often blocked, resulting in abnormal operation. Solution: When refueling the car, try not to wait for the fuel alarm light to come on before refueling. Doing so will shorten the service life of the oil pump, and the oil pump may be burned if the oil is too little or the fuel is exhausted. 4. The car is always filled up at one time. If it is often driven in urban areas and it is convenient to refuel, it is not necessary to fill up at one time, because this may lead to oil floating, sensor failure, oil gauge distortion and oil pump increase in fuel consumption. Solution: Therefore, it is recommended to refuel when the fuel consumption is similar. Always bad oil pump is related to oil quality, refueling method, refueling quantity and refueling frequency. Therefore, we must pay attention to correct refueling and good refueling to ensure the service life of automobile oil pump. Overhaul of gasoline pump casing. (1) Check the flatness error of the combination plane of the upper and lower casings of gasoline pump. Generally, the combination plane is leaned against the flat plate and measured with a thickness gauge. The flatness error should not be greater than 0.10 mm. If it is out of tolerance, it will cause air leakage and oil leakage, which will affect the oil output and pressure of gasoline pump. Therefore, if it exceeds the specified requirements, fine emery cloth can be put on the flat plate for grinding. (2) The flatness error of the joint plane between the shell and the cylinder block shall be no more than O.20mm The inspection and repair methods are the same as above. The cab oil pump (3) shall check the axial clearance of the rocker arm on the rocker arm shaft, and insert a thickness gauge between the rocker arm and the housing for measurement, and the clearance shall be no more than 0.80mm If the specified requirements are exceeded, gaskets with the same thickness may be placed on both sides of the rocker arm. (4) Cracks or gaps in the shell shall be replaced or bonded with epoxy resin glue. If the threaded holes on the shell are damaged, the shell shall be replaced or the screw holes repaired. Wear on the plane where the rocker arm of gasoline pump contacts the eccentric wheel will shorten the working stroke of diaphragm and reduce the pump oil quantity. If the wear of rocker arm exceeds 0.2Omm, surfacing welding shall be carried out. After welding, the surface roughness Ra value shall be no more than 2.5μm, the radial clearance between rocker arm and rocker arm shaft shall be no more than 0.1Omm, and there shall be no clearance between rocker arm shaft and shell bearing hole. If the former exceeds the specified requirements or the latter has clearance, it may be reamed and enlarged by replacement. Our company specializes in producing various truck accessories, mainly including cab lifting oil pump, cab lifting oil cylinder, forklift tilting oil cylinder and steering oil cylinder. At present, our company mainly focuses on European truck accessories, such as VLVO Volvo truck, BENZ Mercedes-Benz truck, SCANIA Caina truck, Manman truck, RENAULT truck, IVECO Iveco truck, DAF Duff truck and other http://www.hualongjx.cn/.

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