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11 Fieldwork
11.8 Cleaning unit
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11.8 Cleaning unit
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11.8.1 Adjusting the fan speed
The cleaning fan blows all light particles out of the
machine from below. Excessive “matting” of grain,
chaff and broken straw on the upper sieve can be pre-
vented by having sufficient volume of wind. The wind
blast also helps to fluff up the material.
The speed can be infinitely varied with crank (1). The
crank is decelerated by a spring and is therefore pro-
tected against unintended misadjustments.
– Engage the threshing mechanism.
– Set the diesel engine speed to fast idling
speed.
– Adjust fan speed with crank (1) until the desired
speed is shown on gauge (2).
The speed must be set depending on the crop. See
threshing chart.
Basic rule: Set the fan speed as high as possible,
depending on crop conditions.
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11.8.2 Adjusting the wind board
– Observe the general warnings at the beginning of
the "Fieldwork" chapter.
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1
+
–
2
Note!
Constructive conditions.
Machine damage.
– Adjust the fan speed only when the
threshing mechanism is engaged.
Fan speed
Higher
Turn crank clockwise (+)
Lower
Turn crank anti-
clockwise (–)
Gauge value x 100 = approx. fan speed in rpm.
