装载机液压油箱往外喷油的主要原因是油液中含有大量气泡，使油液的可压缩性增加。由于油液流回油箱时，从高压突然降为低压，混入油液中的空气在油箱内急剧膨胀，油箱内的压力高于大气压力，使油液混同空气一起从油箱通气孔排出，形成喷油现象。山东装载机出现喷油现象时，应重点检查油液油箱至工作泵或转向泵管路的密封性，以及油泵本身是否漏气。
The main reason that the hydraulic oil tank of the hydraulic oil tank in Shandong is the oil is a large number of bubbles in the oil liquid, so that the compressibility of the oil can be increased. Because of the oil liquid flows back to the tank, from the high pressure suddenly drop for low voltage, mixed with oil in the air in the tank in the rapid expansion of, the tank pressure higher than atmospheric pressure, oil pooling air together from the tank vent discharge,the formation of the phenomenon of injection. When the fuel injection phenomenon occurs in Shandong loader, it should be focused on checking the sealing performance of the oil tank to the working pump or the steering pump line, and whether the pump itself is leaking.

装载机在回油油路中，通常装有滤油器，如果滤油器脱落，也可能出现喷油现象，这种喷油现象中喷出的油，泡沫不多，这是与工作液压系统中混入空气的区别。
Shandong loader in the oil return path, usually equipped with oil filter, if expulsion of oil filter may also appear the phenomenon of oil injection, ejected from the injection phenomena in oil, foam is not much. This is working hydraulic system mixed with air, and difference.