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11 Fieldwork
11.8 Cleaning unit
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The frogmouth sieves are adjustable for all grain sizes
by levers.
Lever (5) is used to adjust the upper frogmouth sieve
over its full length, including the returns passthrough
area (4).
Lever (6) is used to adjust only the returns pass-
through area (4).
– Adjust the grain sieving (3) of the upper frogmouth
sieve with lever (5) so that the grain quantity is
sieved after three fourths of the sieve area has
been sieved.
– Always set the returns sieving (4) of the upper
frogmouth sieve with lever (5) for all crop types
wider than the grain sieving (3), so as to prevent
ears not threshed out from falling through and get-
ting into the returns. Check returns.
– Adjust the lower frogmouth sieve with the lever (7)
so that the crop in the grain tank corresponds to
the desired quality. Check returns.
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11.8.4 Adjusting the cleaning performance
monitor display
The cleaning and separation performance monitor
allows the operator to make full use of the capacity of
the machine.
The display (3) allows the operator to determine how
fast the machine can be driven without the reasonable
grain loss limit being exceeded.
The grains carried out through the sieve fall on the
sensor (2). The excited pulses are visualised by the
meter lights of the display (3).
The sensitivity of the cleaning system display can be
adjusted depending on the properties of the crop
(grain moisture, grain shape, green part).
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B
A
7
3
4
6
5
Lower sieve adjusting lever (7)
A
Narrower sieve spacing
B
Wider sieve spacing
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