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Section 3: Adjustments
OS1548 and OS1572 Overseeder (S/N 166724+) 308-303M
2-16/09
Land Pride
Table of Contents
Small Seeds Attachment
(Optional)
1. Use seed rate charts on Page 30 to determine
seeding rate for the seed you will be planting.
Refer to Figure 3-15 & Figure 3-16 on page 29:
2. Determine which range and drive type the main seed
box is in and then check to make sure the Small
Grass Seeds box drive train is set-up correctly.
Refer to Figure 3-14:
3. If Small grass Seeds drive train is incorrect, change
sprockets (#4 & #8) as follows. Skip to step 4 if drive
train is correct.
a. Remove chain guard.
b. Loosen idler plates (#1) and remove roller chains.
c. Remove 1/4” x 1 3/4” long bolt (#2) and 1/4” lock
nut (#3). Flip cup drive sprocket (#4) to desired
drive type. Reassemble sprocket.
d. Remove 5/8” nut (#5), 5/8” lock washer (#6) and
1” OD x 1/4” long spacer (#7).
e. Flip double sprocket (#8) to desired drive type.
Reassemble sprocket.
f. Install chains and adjust idler plates (#1) for chain
tightness.
g. Reinstall chain guard.
4. See Important Note above. Locate seed rate
adjustment lever at rear of seeder and move it to
indicator number obtained from the seed rate charts.
For best results, first move adjustment 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.
NOTE: Seeding rates will vary greatly with variations
in sizes of the 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.
NOTE: There is no “range” associated with Small
Grass Seeds drive. If the drive is set-up correctly, the
Small Grass Seeds box will turn the same speed
regardless of whether the main seed box is set for
high or low range.
NOTE: Do not change cup drive sprocket (#4) if
Overseeder serial number is below 124,696.
IMPORTANT: Use seed rate charts as a guide.
There are many factors which will affect seeding
rates: seed treatment, weight of seed, surface
condition of seed, tire pressure, tire configuration
and tire or rear roller slippage. Minor adjustments
may be needed to compensate for these factors.
Small Seeds Drive Adjustment
Figure 3-14
5. 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 Overseeder.
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.
* 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. If this figure (total pounds) is different than
desired, then readjust your seed cup adjustment
lever accordingly.
Number of Gauge Wheel & Rear Roller Rotations
Coverage= 1000 Sq. Ft. 1/10 ACRE
Model No
Wheel Roller Wheel Roller
OS1548 52 80 228 347
OS1572 37 56 161 246
14691