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Section 3: Seeding Adjustments
7/22/05
PS1548 & PS1572 Primary Seeder 313-164M
Land Pride
Table of Contents
Seeding Adjustments
1. Using the seed rate charts, beginning on page 12,
determine the seeding rate for the seed you will be
planting and make the following adjustments.
a. Decide whether you need the slow or fast drive
type. Change the speed change sprocket if
necessary, to the desired drive type, see
Figure 3-1 & Figure 3-2 on page 10.
b. Locate the seed rate adjustment handle at the
rear of the seeder and move it to the indicator
number obtained from the charts, see Figure 3-3.
For best results, first move adjustment handle all
the way to the left. Then move the handle to the
desired setting, moving from a lower to a higher
number.
2. There are many factors which will affect seeding rates:
seed treatment, weight of seed, surface condition of
seed or roller slippage. Minor adjustments may be
needed to compensate for these factors.
3. The seed rate charts are based on average size seed.
This may differ from the seed you are using. Use the
seed rate charts as a guide. For lighter than average
seed, the setting should be increased. For heavier
than average seed, the setting should be decreased.
4. Complete the following procedure to calibrate the rate
for your specific seed.
a. Place several pounds of seed over three of the
seed cups at the outboard end of the seeder.
b. Raise the seeder off the ground and support
safely, leaving front roller to rotate freely.
Rotate the front roller to see that the drive system
is working properly and the seed cups are free
from foreign matter.
NOTE: A 1/2” bolt is threaded into the right hand end of
the front roller shaft. Turn the bolt clockwise for proper
seed cup rotation.
c. Place a drop cloth under the seeder to gather the
seed as it is metered.
d. Rotate the front roller 53 rotations for a PS1572
and 67 rotations for a PS1548 to get 1000 square
feet or 2328 rotations for a PS1572 and 2921 for a
PS1548 to get one acre. Be sure to check the
three seed cups to make sure each cup has plenty
of seed coming into it.
e. Weigh the seed which has been metered. Divide
by three. This will give you the ounces/pounds
metered by each seed cup. Convert to pounds
and multiply by the number of cups on your
seeder to arrive at the total pounds per 1000
square feet your seeder would meter at that
setting. If this figure is different than desired, set
your seed cup adjustment lever accordingly.
5. You may want to repeat the calibration procedure if the
results of your calibration vary greatly from the
suggested settings on the chart.
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 4 and 5 to calibrate the
seed rate.
REMEMBER: Field conditions will affect seeding rates.
When seeding check the amount of seed you are using by
noting acres or square feet seeded, amount of seed
added to seeder, and level of seed in the seed box. If you
suspect that you are seeding more or less seed than
desired, and you have accurately calibrated the seeder to
your seed, you may need to adjust the seeding rate
slightly to compensate for field conditions.
NOTE: This seeder is equipped with a four-position door
on each seed cup. The highest handle position is for small
seeds, the second and third positions are for larger seeds.
For application with this seeder, you will only need to use
the highest position. MAKE SURE all handles are in the
same position before seeding. The wide open position will
allow complete clean out of the seed cup.
DO NOT open the cup to the wide open position with
seed in the box unless complete clean out is desired.
Seed Rate Adjustment Handle
Figure 3-3
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