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Section 3: Adjustments
PS25120 Primary Seeder 313-156M
4/03/14
Seed Cup Settings
Refer to Figure 3-3:
Each seed cup is equipped with a four-position gate. The
highest gate handle position shown is for small seeds,
the second and third positions are for larger seeds. The
forth position (Handle rotated fully down below the
bottom tab) sets the gate at wide open to allow complete
clean-out of seed cup.
Seed rate charts are based on the gate handle being set
in the highest position. Typically, most seeds will use the
highest gate handle position. If using larger seed and it is
not discharging properly, you can try using the other two
gate handle positions.
Seed Cup Settings
Figure 3-3
IMPORTANT: Most applications for this seeder
require the gate handle be placed in the highest
position.
MAKE SURE all gate handles are in the same
position before seeding.
Do Not set gate handles in the fourth position and
seed rate adjustment lever to the widest open
position (See Figure 3-4 on page 22) with seed in the
box unless complete clean out is desired.
Gate Handle (Shown
In Highest Position)
Gate Handle Rotated To This
Position Fully Opens Gate To
Clean Out Seed.
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Calibrating & Adjusting Seeding Rate
1.
Use seed rate charts beginning on page 24 to
determine correct seeding rate. Make adjustments
as follows:
a. On the right-hand side of your seeder is the drive
system. Decide if the drive needs to be set-up for
low range or high range. If necessary, change
speed change sprocket to accommodate correct
speed range, See Seed Rate Speed Change on
page 21 for instructions.
b. See Figure 3-4. Locate seed rate adjustment
lever at the rear of the seeder and move it to the
indicator number obtained from the charts. For
best results, first move adjustment lever all the
way to the left and then to the desired setting,
moving from a lower to a higher number.
•
Increase setting if seed is lighter than average.
•
Decrease setting if seed is heavier than
average.
Seed Rate Adjustment
Figure 3-4
IMPORTANT: Seed rates provided in the charts may
be inconsistent with actual planting rates due to
seed size, weight, treatment, moisture content, ratio
of inert material to seed, different seed mixtures,
humidity, & ground preparation. Minor adjustments
to the cup setting may be needed to compensate.
NOTE: To determine seed rates for seeds not listed
on the charts, compare weight and size to those
listed and use a similar setting. Follow steps 1 to 4 to
calibrate seed rate.
IMPORTANT: Do Not operate seed rate adjustment
lever at -0- setting. Seed cup damage may occur.
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