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Section 3: Adjustments
OS1548 and OS1572 Overseeder (S/N 166724+) 308-303M
2-16/09
Land Pride
Table of Contents
Section 3: Adjustments
Seeding Adjustments
1. Use seed rate charts beginning on Page 20 to
determine correct seeding rate and adjustments:
a. Decide whether your drive needs to be set-up for
low range or high range. If necessary, change the
speed change sprocket to accommodate the
correct speed range. refer to Figure 3-2 and
Figure 3-3 on page 19.
Refer to Figure 3-1:
2. Locate seed rate adjustment lever at rear of seeder
and move it to indicator number obtained in the seed
rate charts. For best results, first move lever all the
way to the left. Then move lever to desired setting,
moving from a lower to a higher number.
• Increase seed rate if seed is lighter than average.
• Decrease seed rate if seed is heavier than average.
3. Complete the following procedure to calibrate
dispersal rate for your specific seed.
a. Place several pounds of seed over three of the
seed cups at the outboard end of the seeder. Do
not allow any of the seed to reach other cups.
b. Pull the seed tubes out of these three drops.
c. Support drive unit off the ground as follows:
• Gauge wheel drive units: Raise and support
drive tire (right tire) off the ground using a jack.
• Rear roller drive units: Raise and support rear
roller off the ground using a jack.
d. Rotate tire or rear roller to make sure drive system
is working properly and that the feed cups are free
from foreign matter.
e. Place a container under the three seed tubes to
gather seed as it is metered.
f. Rotate gauge wheel or rear roller the number of
rotations noted in the table below. Be sure to
check the three feed cups to make sure each cup
has plenty of seed coming into it.
NOTE: Seeding rates will vary greatly with variations
in sizes of seeds, although the seeding rates listed in
this manual are based on an average seed size, we
recommend that you test and adjust your Overseeder
using the procedures listed below to help insure an
accurate seeding rate.
IMPORTANT: Use seed rate charts beginning on
Page 20 as a guide. There are many factors which
will affect seeding rates: weight of seed, seed
treatment, soil surface condition and rear roller
slippage. Minor adjustments to the seed rate
adjustment lever may be needed to compensate for
these factors.
NOTE: Rotate rear roller by grasping the roller and
pulling away from the seeder at the bottom of the
roller and pushing toward the seeder at the top.
* Seed rates listed in charts for gauge wheel units are based
on Overseeder having 18 x 8.50 x 8 turf tires with 20 psi.
g. Weigh the seed which has been metered out and
divide that weight by three to get the number of
pounds metered by each seed cup. If your weight
is in ounces, divide the weight by 48 to get the
number of pounds metered by each seed cup.
h. Next, multiply number of pounds per cup by
number of cups on your seeder to arrive at total
pounds per 1000 sq. ft. or pounds per 1/10 acre.
i. If calculations are based on 1/10 acre, multiply
total pounds by 10 to arrive at total pounds per
acre.
j. If this figure (total pounds) is different than
desired, then readjust your seed adjustment lever
accordingly.
4. You may want to repeat calibration procedure if
results of your calibration vary greatly from
suggested settings in the chart.
Seed Rate Adjustment Handle
Figure 3-1
Number of Gauge Wheel & Rear Roller Rotations
Coverage= 1000 Sq. Ft. 1/10 ACRE
Model No
Wheel Roller Wheel Roller
OS1548 51 67 222 292
OS1572 36 47 157 206
NOTE: To determine seed rates for seeds not listed
on the charts, compare weight and size to those listed
in the seed rate charts and use a similar setting.
Follow steps 4 and 5 to calibrate seed rate.
IMPORTANT: Remember, field conditions will affect
seeding rates. When seeding, check 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. You may need to adjust the seeding
rate slightly to compensate for field conditions if you
suspect that you are seeding more or less seed than
desired; and you have accurately calibrated the
seeder for your seed.
12858
Four-Position
Door Handle
Seed
Cup
DO NOT open cups to the widest position with seed
in the box unless complete clean out is desired.
Seed Rate Adjustment Lever
Drop
Tube