Operation
59
S.N Phenomenon Main
Factors
Remedy
4
Threshing
loss
5) Drive belt of main roller
loosened (low revolving
speed of the threshing
rotor)
1) Adjust the belt tension or replace it.
6) Crops intermittently
conveyed from the
harvesting section to the
feeder house
1) Properly adjust the height, front/rear distance of the
reel.
5
Lots of straw,
green leaves
and dust (poor
screening)
1) Chaff sieve clearance
adjust lever opened too
much
1) Adjust it toward the “Close” side. (as indicated in page
50 )
2) Wind power of the fan Is
too low
1) Increase its wind power. (adjust the damper toward
“Upper” position)
3) Operating speed is too low
comparing to yield
1) Raise the harvesting speed.
4) Low engine speed
1) Operate at the specified engine speed.
5) Drive belt of the swing
separator loosened (low
revolving speed of the
screen)
1) Adjust the belt tension or replace it.
6 Hulled
rice
1) High engine speed
1) Operate at the specified engine speed.
2) Vibrating screen closed too
much
1) Turn the screen toward “Open” side.
3) Conveyer wear
1) Check and replace the conveyer.
4) High moisture content of
rice (wet)
1) Harvest after rice becomes dry.
2) Reduce the harvesting speed.
7
Lots of
branch
1) Chaff sieve clearance
adjust lever opened too
wide
1) Turn the screen toward “Close” side. (as indicated in
page 50 )
2) Check whether the gap
between concave screen
and cylinder teeth is
widened due to wear or
deformation
1) Correct the deformation and wear, or replace with
new ones.
Check/remedy of grain loss during harvesting-2
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