Considerable skill is required to operate efficiently the various types of cleaners and graders that are available for farm use. Grain samples are variable and the correct setting for one particular sample may not be appropriate for the next sample. The following adjustments are usually available to properly set a machine for a given sample of grain:
1) The air blast can be adjusted by either regulating the fan blind or altering the speed of rotation.
2) The slope, length, and frequency of vibration of a machine can be adjusted to suit the requirements of a particular sample.
3) The sieves themselves are interchangeable for different sizes and types of grains.
Was this article helpful?