武汉长臂挖掘机出租——挖掘机伸缩臂油压力低的原因
挖掘机伸缩臂油压力低的原因
造成挖掘机机油压力过低的原因也是多种多样,根据诸多维修案例,加长臂挖掘机租赁总结出造成挖掘机伸缩臂机油压力过低的元凶主要有下面5点:
The cause of low oil pressure of the excavator is various, according to many repair case, plus the long arm of excavator rental summed up the culprit causing excavator telescopic low oil pressure are mainly the following 5 points:
【武汉长臂挖掘机出租】一、机油泵磨损
Oil pump wear, machine
【武汉长臂挖掘机出租】二、机油泵不转
Two, the oil pump does not turn
如果机油泵的驱动齿轮与驱动轴的平键损坏或者脱落;集滤器破损使机油泵吸入异物,齿轮被卡死,都会使机油泵停转,机油压力降为零。
If the drive gear oil pump drive shaft with the flat key damage or fall off; set filter damage the oil pump inhalation of foreign bodies, gear jammed, will make the oil pump stops, the oil pressure drop to zero.
【武汉长臂挖掘机出租】三、机油油量不足
Three, the oil shortage
如果机油油量不足,会使机油泵的泵油量减小或者因进入空气而泵不上油,使机油压力下降,曲轴与轴承、缸套与活塞都会由于润滑不良而加剧磨损。
If the oil level is insufficient, will make the oil pump oil pump into the air and decrease or by pump is not oil, the oil pressure drop, the crankshaft and bearing, the cylinder and the piston will aggravate the wear due to bad lubrication.
【武汉长臂挖掘机出租】四、发动机温度过高
Four, the engine temperature is too high
如果发动机冷却系水垢过多、散热不良、长时间超负荷作业或者喷油泵的供油时间过迟等都会使发动机过热,加速机油的老化、变质、变稀,从各配合间隙中泄漏,压力降低。
If the time of fuel injection engine cooling system too much scale, poor heat dissipation, long time overload operation or fuel injection pump too late can make the engine overheating, accelerate the oil aging, deterioration, thinning, leakage from the fit clearance, pressure drop.
【武汉长臂挖掘机出租】五、主轴承与连杆轴承的配合间隙增大
Five, the main bearings and connecting rod bearing clearance increases
发动机长期使用后主曲轴与连杆轴承的配合间隙逐渐增大,泄漏增加,机油压力便下降。
Long-term use of the engine main crankshaft and connecting rod bearing clearance increases, increased leakage, oil pressure drops.
武汉长臂挖掘机出租——挖掘机伸缩臂油压力低的原因