Grain loss
Grain loss over cleaning shoe (cont.)
Possible Cause Correction
Incorrect chaffer for crop being
harvested.
Round end, shallow tooth 1.125” (28.6
mm) shoe spacing - used in all crops
except corn.
Round end, deep tooth 1.625” (41.3
mm) spacing - generally used in corn
but has also been found to provide
desired cleaning in some crops such
as soybeans and high moisture cereal
grains where more air volume is
desired.
Square end, deep tooth 1.625” (41.3
mm) spacing - generally used in high
moisture corn to remove pieces of cob
from the grain tank sample.
Incorrect air pattern.
Inspect fan, fan choke, shoe air duct
and splitter location.
Grain loss present when entering and/
or leaving the crop.
This situation is usually normal because
the cleaning system should be adjusted
to provide min. grain loss when in a
fully loaded condition.
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