Pressing machine pressing cage gurgling sound, so that the entire oil press vibration; The cake can not be broken into pieces and scattered and dark brown, and with a focal spot; Power motor load current is higher than 30 amps; Oil position toward the direction of the cake, the cake mouth to take smoke, oil reduction, oil color sepia. If the seed oil press the above phenomenon too long, it will cause significant mechanical damage accidents. At this time, we must immediately reduce the steam pressure in the steam cylinder to increase the amount of direct steam injection, cutting off a small door, reducing the squeeze cage to feed, increasing the thickness of the cake, so that the load gradually declined after oil press machine, coupled with regulation, so as to restore normal operation.