1. The stiffness of the screen box is insufficient, there is a critical frequency, and the connecting bolts have been loosened, even to the extent of complete loosening, that is, tightened.

2. The horizontal level of the screen box is not accurately aligned, and it is possible to find a problem with the support seat of the support foot spring or the spring itself, replace the spring or change the size of the support, or cause damage to the screen mesh. Simply replace the screen mesh. If the horizontal level is not aligned due to insufficient rigidity of the screen box all the time, the beam will be broken. If it is still running, the material flow will be abnormal. It is also possible that improper operation, such as extremely unbalanced feeding, is one of the reasons.

2、 The vibrating screen cannot be started or the amplitude is too small

When encountering such a situation, it is necessary to check for electrical obstacles, motor damage, or damaged components in the circuit, as well as insufficient voltage. These three aspects are all normal, and then check mechanically: ① whether there is too much material accumulation on the screen surface of the rotary vibrating screen. If so, remove it immediately. ② Check if the coupling bolts on the vibration exciter have fallen off, ③ whether the lubricating grease has thickened and agglomerated. At this time, clean and repair the vibration exciter, and then adjust the position of the eccentric shaft weighting block or auxiliary eccentric block appropriately.

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