1. Whether the fixing bolts on all shot blasting machines and shot blasting machine motors are loose, and if they are loose, tighten them immediately.
 
       2. Wear conditions of the wear parts in the shot blasting machine and the guard plate in the shot blasting chamber, and replace the worn parts in time.
 
       3. Check the blades and replace them when they are half worn.
 
       4. Check whether the pointer position of the directional sleeve is correct.
 
       5. Whether the inspection door of the shot blasting machine is tightly closed.
 
       6. Whether there is air leakage in the dust removal pipeline, and whether the filter bag in the dust collector is dusty or damaged.
 
       7. Whether there are deposits and other debris on the spiral shell and filter screen of the separator, and remove them in time.
 
       8. Check whether the belt tension, bolts and joints of the hoist are suitable, whether it is off-track and worn.
 
       9. Check whether the status of each limit switch and proximity switch is normal.
 
       10. Check whether the working status of each signal indicator on the console is normal
 
       11. Check whether the shot blasting motor current is within the rated range.
 
       12. Clean the dust on the electrical control box.
 
       13. Check whether the total amount of pellets in the pellet silo is sufficient, and should be added when insufficient.