1. The hydraulic oil filter core is the core part of the filter. The filter core is composed of special materials and belongs to wearing parts, which need special protection and maintenance.
　　2. When the filter in the system works for a period of time, the hydraulic oil filter element in the filter has intercepted a certain amount of contaminated impurities. At this time, the pressure increases, the flow will gradually reduce, and the transmitter will remind the alarm.
　　3. In the process of cleaning the filter element, we must pay attention to the hydraulic oil filter element must not be deformed or damaged. Otherwise, cannot use again, lest affect filter efficiency, bring damage to whole system thereby.
　　This paper is sorted out by dongguan oneness filtration technology co., LTD