The steps of the tumble screenneed to be checked before starting:
1. The first check of the start-up work is to find whether there are any sundries in the machine, that is to say, all the items need to be cleaned up.
2. The most important step is to see if the screws of each component are tightened.
3. Another one is to see if the power supply motor and other accessories can work properly.
4. When the three points mentioned above are completed, the operation can be started.

The contents of the tumbler screen need to be checked when shutdown:
1. Follow the instructions exactly to finish the work procedure. It is best not to change the step of the operation.
2. Carefully clean the debris in the machine to avoid hidden dangers caused by it.
3. Keep the operation mode of the sieve machine at rest.
4. The surrounding environment of the sieve machine should be neat and tidy, try not to be contaminated with dust.
5. Do not put anything that is irrelevant around the tumbler screen.
Precautions
1. Always check the conditions of the sieved material. If the material has a knot or the color is deviated, it is necessary to remove the particles and solve the subsequent material changes.
2. When using the tumbler screen, it not only requires its ability, but also valued the discharging effective particles. Therefore, there are two capacity requirements for the sieve surface: the first is its ability to handle the material, that is, it can sieve the particles, the other is its efficiency－the quality of the material.
3. In the operation, theoretically, the particles smaller than the sieve holes should pass through the screen mesh completely, but this is not the case in actual operation, which is determined according to the vibration force and the material characteristics. Therefore, more or less, some of them cannot pass through the mesh, while become waste materials.
4. The power of the tumbler screen cannot be started or the swinging amplitude is too small. First, we must first check whether the motor is normal, or it may be the damage of the motor circuit. Then we should consider whether the voltage is too small. If these three points’ information are normal, then we have to check whether too much material on the screen surface leads to excessive load. Finally, check if the matched accessories on the screen surface are damaged or not.
5. If the material movement during screening is not normal, there may be scars in thetumbler screen. The other case is that the device is unstabilized. If the rotation is slow in the work, and the bearing is too hot, it does not need to check anything, this is because the usual maintenance does not keep up or lubricate too much.
6. The quality of material is not well, it may be that the discharge hole is not open, or the tension of screen mesh is not enough.
7. Before the tumbler screen operation, the fuel tank should be inspected. If the oil level exceeds the standard height, it will cause problems such as temperature rise and amplitude instability. If the oil in the fuel tank is little, which will cause the running shaft to wear. Always check the tightening of the screws. The new machine should be tightened after half a day of the first operation. After the screen surface is operated at a speed, the material can be placed for screening. After the operation, do not feed the material. Before the machine is shut down, the materials in the tank should be cleaned.
For the above information, you can make them into maintenance regulations to enforce.