| Faults |
Causes |
Solutions |
| Air leakage of solenoid valves |
Foreign matters found in valves |
Blow air into the valve in a reverse direction for repeatedly test |
| Wear of valve components |
Replace worn parts |
| Solenoid valves fail to work |
Poor contact of valve wires |
Re-plug or repair poor contact parts to enable good contact |
| Damaged control circuit boards |
Replace control circuit control boards |
| An inadequate amount of air injection for solenoid valves |
Solenoid valves are not switched to the assigned location |
Re-adjust or replace solenoid valves |
| Air pressure is too low |
Check the pressure gauge and corresponding air piping
|
| Rice leaps on rice channels |
The water content in rice is excessively high |
Dry the rice for re-sorting |
| Ashes on rice channels cake |
Clean the rice channel with a piece of soft cloth |
| Scratches occur on rice channels |
Replace rice channels with new ones |
| Frequent action of color sorting indicator lights and electromagnetic valves (fluorescent lamps) |
Fluorescent lights are burn out |
Replace fluorescent lamps with new ones |
| Color sorting modes are not set correctly |
Set color sorting modes correctly |
| Damaged power supplies for fluorescent lamps |
Replace power supplies |
| Background plates get stuck |
Restore stuck boards |
| Rice sorting waves are not correctly set |
Re-adjust background plates |
| Fluorescent lamps are not lightened |
Re-lighten fluorescent lamps |
| Circuit fault reminders appear |
Circuit fault |
Please contact us |
| Poor rice sorting results on channels at both sides |
Fluorescent lamps are black at both ends |
Replace fluorescent |
| The equipment don’t work at all |
Sensitivity is too low |
Adjust sensitivity |
| Background plates are improperly adjusted |
Adjust background plates
|
| Sorted grains are increasingly inferior ones during a certain period |
Dust accumulates on glass plates in the sorting chamber |
Wipe off dust with a clean piece of cloth |
| Parameters of sensitivity and background plates change |
Re-set parameters |
| Rice channels are unheated |
Check the heating system |
| Dust wipers are damaged and aged |
Replace dust wipers |
| Poor sorting results on a single side of the system |
Poor cleaning results due to inappropriate action of rod less cylinders |
Adjust the wiping speed of dust wipers |
| Color Sorters often shut down |
Excessively high sensitivity; re-adjust the sensitivity |
Background plates (or wave forms) are not adjusted properly |
| Re-adjust Background plates |
Excessively high content of yellow grains |
| Reduce output |
Inadequate air supply pressure |
| Check the air pressure and air passage to find out they are proper; re-adjust the air passage |
Protection of air pressure often occurs |
| Try to make pipes unblocked |
clean or replace relative filter elements |
