1. The reversing valve of automatic concrete mixer has been used for a long time, which is easy to cause the valve core seal ring wear, valve seat and stem damage, resulting in gas leakage in the valve, slow action or abnormal reversing of the valve. Solution: the sealing ring, valve stem and valve seat need to be replaced, or the change-over valve needs to be renewed.
2.打鱼注册送分200元 的换向阀若是呈现不能换向或换向举措迟缓的环境，普通是因弹簧被卡住或破坏、光滑不良、油污或杂质卡住滑动局部等缘由引发的。处理方式：咱们应先查抄打鱼注册送分200元 油雾器的任务是不是普通，光滑油的粘度是不是适合。处理方式：应改换打鱼注册送分200元 光滑油，洗濯换向阀的滑动局部，或改换弹簧和换向阀。
2. If the reversing valve of the automatic concrete mixer can not change direction or the reversing action is slow, it is generally caused by the spring stuck or damaged, poor lubrication, oil or impurities stuck in the sliding part and other reasons. Solution: we should first check whether the oil mist device of automatic concrete mixer works normally and whether the viscosity of lubricating oil is appropriate. Solution: replace the lubricating oil of the automatic concrete mixer, clean the sliding part of the reversing valve, or replace the spring and reversing valve.
3.若电磁先导阀的进、排气孔被油泥或其余杂物梗塞，勾当铁芯被卡死，封锁不严，电路有毛病等，都可致使换向阀不能普通换向，对前三种环境处理方式：应洗濯先导阀及勾当铁芯上的油泥和杂质，而电路毛病普通又可分为电路毛病和电磁线圈毛病两类。
3. If the inlet and exhaust holes of the solenoid pilot valve are blocked by oil sludge or other debris, the movable iron core is blocked, the sealing is not tight, and the circuit is faulty, the reversing valve can not be normally reversed. For the first three cases, the solutions are as follows: the oil sludge and impurities on the pilot valve and the movable iron core should be cleaned, and the circuit faults can be generally divided into circuit faults and solenoid coil faults.
在查抄打鱼注册送分200元 电路毛病之前，要先将换向阀的手动旋钮动弹几下，看换向阀在额外气压下是不是能够普通换向，若能普通换向，则是电路有毛病；查抄时，能够用仪表丈量电磁线圈的电压，看是不是到达了额外电压，若是电压太低，应进一步查抄节制电路中的电源和相干联的路程开关电路。若是在额外电压下换向阀不能普通换向，则应查抄电磁圈的讨论是不是松动或打仗不实，查抄方式：拔下插头，丈量线圈的阻值，若是阻值太大或太小，申明电磁线圈已破坏，须要改换。
Before checking the circuit fault of the full-automatic concrete mixer, turn the manual knob of the reversing valve several times to see whether the reversing valve can change direction normally under the rated air pressure. If it can change direction normally, there is a fault in the circuit; During the inspection, the voltage of the electromagnetic coil can be measured by the instrument to see if it reaches the rated voltage. If the voltage is too low, the power supply in the control circuit and the associated travel switch circuit should be further checked. If the reversing valve can not change direction normally under the rated voltage, check whether the connector of the solenoid coil is loose or not. Check method: pull off the plug and measure the resistance of the coil. If the resistance is too large or too small, it means that the solenoid coil is damaged and needs to be replaced.
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