GREAT PLAINS SPARTAN II, Руководство оператора, Страница: 49 / 131

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Spartan
II
607 Table of Contents Index Operation
2. Watch the manifold pressure gauge(s) and
monitor. Adjust fan speed by increasing or
decreasing hydraulic flow from the tractor. Use
the guidelines and the fan speed chart to
properly adjust fan speed.
Fan speed tips:
 Higher fan speeds improve seed distribution, but
high fan speeds also increase the chance of
seed damage and bounce.
 At first, adjust fan speed to the high end of the
range suggested in the chart. Watch for
excessive seed cracking and seed bounce from
the furrow, then reduce fan speed if necessary.
 Actual fan speeds vary with implement width, row
spacing, seeding rates, seed weights, and seed
size. Increase fan speed for heavier seeding
rates or seed. Reduce fan speed for lighter
seeding rates and seed more prone to cracking.
Fan Manifold Gate Adjustments
On dual-hopper drills, where the material in each
hopper may not be the same, the meters may require
different air flows. Dual pressure gauges, and fan
manifold gates are provided for setting unequal flows.
For S/N C1009F- drills, there are two gates and for
S/N there is one gate. A fan manifold gate
is not available on single-hopper drills.
An example of a situation likely to need unequal flow:

small light seeds in hopper I , and

dense dry fertilizer in hopper II .
The need for unequal flows may be observed only
during actual field operation, as material must be
entering the airflow and generating air demand.
If applying a single material on a single-shoot drill,
Great Plains recommends loading the material into
both hoppers and using half rate. Set the manifold
gate for equal pressures to each meter.
If applying a single material on a double-shoot drill,
use a single hopper. Set the manifold gate to divert
the maximum flow to the used side. This does not
completely shut off air flow to the unused hopper,
which needs some airflow to avoid nuisance alarms.
S/N C1009F-
The manifold gates inside the manifold are controlled
by the levers (1) on the front of the manifold. (The
left-hand lever is shown.)
The factory setting for the handles is pointing all the
way up, providing balanced flow to each meter.
Decals on the manifold show the approximate angle
of maximum effect.
To adjust a manifold gate:

Loosen the nut (2).
 Move the handle to the horizontal position to
reduce flow and all the way up to increase flow.
 Tighten the nut.
S/N
The manifold gate (1) inside the fan manifold is
controlled by turning the handle (2) at the bottom of
the manifold. The lever (3) represents the position of
the gate.
38201
1
2
3
2
68822
3
1
2
68822A