| Condition of failure | | Cause (in processing) | remedy |
|
|---|
| Poor separator efficiency | | Clogging of screen | Clean out screen. | | Cleaning balls are not moving freely due to the slack of screen | Pull in the slack of screen.
Mend back screen which has been dented. | | Cleaning balls have been worn down | Replace the new ones when balls wear down to 50% or less. | | The RPMs is less than 200rpm | Replace damaged or worn belt. | | Excessive feed rate | Adjusting to the specific feed rate. |
|
| Size of separated grains is not uniform | | Damage of screen | Replace with new one. | | Damage or wear of screen frame sealing. | Replace or reset. | | Clogging the screen. | Clean out screen. | | Screen frame are not appropriately fitted. | Set them correctly referring to number plate on the screen frame. |
|
| Foreign matter(lumps) jamming discharge port. | | Bran adhering to screen frame or discharge port. | Clean out screen. | | Material remains on the screen due to insufficient tome period between feed stop and stop the machine operation. | Continue operation of the machine until all materials have been discharged. |
|
| Power grain leaking out | | Damage of screen frame sealing. | Replace with new one. | | Damage of cylindrical cloth. | Replace with new one, When replacing, make the cloth’s length enough so that it does not come off by the motion of sifter. |
|
| Abnormal sound during operation. | | Clamp of door is loose. | Tighten the clamp bolt. After trail operation, ckeck for looseness of the clamp. | | Looseness in each fixing section. | Tighten it. | | Wear of damage of oscillating part or part of screen frame. | Replace the new one. | | Lubrication grease has been run out. | Lubricate grease. |
|
| Irregular oscillation or vibration of the machine. | | Supporting rods are loose. | Loosen a fixture for a supporting rod and tighten securely. Adjust level of base frame simultaneously. | | Damage of deformation of spring. | Replace with new one, replace supporting rod if it is not securely fitted to spring. | | Screen frame lock nut is loose. | Tighten. | | Wear of bearing. | Replace. | | Base is not level. | Adjusting level. |
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