GREAT PLAINS SPARTAN II NTA607-2-3275, Руководство оператора, Страница: 45 / 116

Spartan
II
607 Table of Contents Index Operation
Great Plains | 166-486M | 2019/01/29 39
Metering Shafts
The configuration of the metering shaft (number and
type of stars) effects the seeding rate.
A star (1) for a 2-, 3-, and 4-star metering shaft is
made of two halves (2) that are aligned. Each star is
offset from the adjoining star (3).
Stars for small seed (4) are made of two halves that
are not aligned. For a lower small seed planting rate
than the chart on page 46, plastic spacers (5) can be
used. To use the spacers, disassemble the small
seeds shaft and replace half of a small seeds star
assembly with a spacer. The spacers are stored in
the tool box.
If the material rate needs to be changed, first find the
configuration of the metering shaft. It is not
necessary to remove the metering shaft to determine
the configuration.
To determine the configuration of the metering shaft
installed in the drill:

First make sure the hoppers and the meters are
empty. See “
Unloading Hopper Materials ” on
page 71.

Inspect the metering shaft from the hopper lid.
Do not enter the hopper.

Inspect the metering shaft more closely from
under the meter with the front meter door fully
open.
Compare the metering shaft to the ones illustrated
below to determine the configuration.
(1) small seed rate metering shaft.
(2) 4-star metering shaft. (Factory installed.)
(3) 3-star metering shaft (S/N C1009F- only).
(4) 2-star metering shaft.
Changing a Metering Shaft
The hopper must be empty for this procedure. See
“
Unloading Hopper Materials ” on page 71.
For S/N C1009F-
If your seeding rates need to be lower, select one of
the lower rate shafts.

Replacing the standard 4-star metering shaft with
a 3-star metering shaft decreases the seeding
rate by approximately 25% (to 75% of standard
rate).

Replacing the standard 4-star metering shaft with
a 2-star metering shaft decreases the seeding
rate by approximately 50% (to 50% of standard
rate).

For compatible seeds, replacing the standard
4-star metering shaft with the small seeds
metering shaft reduces the seeding rate by
approximately 90 to 75% (to a net of 10% to 25%
of standard rate).

For small seeds or other seeds substantially
smaller than 12 to 4.7 mm, the standard
metering shaft may not provide enough precision
and uniform flow at very low rates. The small
seeds metering shaft includes two half-width
shallow flute stars per compartment.
5
4
1
3
2
32400A
S/N C1009F-
S/N
4
2
3
1
1
2
4