Storage - New Holland TX62 Operator's Manual

OPERATION
Hillside dividers can be installed as an accessory on
the presieve 17 and upper sieve 20. They can be re-
moved when operating in level field conditions.
The cleaning shoe is composed of an upper shoe 26
and a lower shoe 27 which move in opposite direc-
tions. A first separation takes place on the grain pan
as the lighter chaff forms the top layer and the heavier
grain the bottom layer. The material falls through the
finger grate 16, installed at the rear of the grain pan,
onto the presieve 17. The air coming from the secon-
dary blow opening 18 of cleaning fan 19 blows the
chaff over the presieve so that grain with a reasonably
high degree of cleanliness falls through the presieve.
This action will be repeated a second time between
the presieve 17 and upper sieve 20.
The air coming from the main blow opening 21 of
cleaning fan 19 blows the chaff over the upper sieve
and out of the machine, while the grain, unthreshed
heads and small volumes of chaff fall onto the lower
sieve 22.
4
5. STORAGE -- Figure 4
The clean grain is channelled into the grain tank 32 by
the clean grain cross auger 24, grain elevator 31 and
bubble-up auger 33. The grain tank is emptied by the
grain tank unloading auger 34 and the unloading tube
auger 35.
2 - 4
In addition, the grain separated by the presieve 17 is
guided by the small grain pan 28 to the lower sieve.
The installation of a presieve considerably increases
the cleaning shoe capacity as the main separation of
grain and chaff occurs at both finger grates. The lower
sieve, or cleaning sieve, provides the final cleaning
operation. Grain that passes through the cleaning
sieve is carried over the grain plate 23 to the clean
grain cross auger 24. Unthreshed heads which do not
fall through the lower sieve are split into two streams
and are transported by the returns auger 25 to the
roto-threshers 29 for rethreshing.
From the roto-threshers this material is channelled by
returns augers 30 to the grain pan for cleaning. Di-
vider plates divide the returned material evenly over
the grain pan where the exclusive self-levelling clean-
ing shoe takes over.
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