Section 3: Adjustments
OS1548 and OS1572 Overseeder (S/N ) 308-303M
11/28/18
25
* 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. Rotate rear roller the number of rotations noted in
the table above. Be sure to check the three feed
cups to make sure each cup has plenty of seed
coming into it.
h. Weigh the seed which has been metered out and
divide that weight by three to get the number of
pounds or kilograms per seed cup.
i. Next, multiply number of pounds or kilograms per
seed cup by the number of seed cups on the grass
seeds seedbox to arrive at weight “A”.
j. If Weight “A” is calculated based on:
1/10 acre, then “A” x 10 = lbs/acre
1000 sq ft, then “A” x 43.56 = lbs/acre
1000 sq ft, then “A” x 1 = lbs/1000 sq ft
1/20 hectare, then “A” x 20 = kg/hectare
100 sq meters, then “A” x 100 = kg/hectare
100 sq meters, then “A” x 10 = kg/1000 sq m
k. If calculated grass seed rate is different than the
suggested settings in the charts, then increase or
decrease the seed cup adjustment lever.
3. Repeat calibration procedure if the results of the
calibration vary greatly with the chart.
Model
No
Number of Rear Roller Rotations For:
1/10 Acre
1000 Sq.
Ft.
1/20
Hectare
100
Sq. M
OS1548
398
91
492
98.5
OS1572
265
61
327
66
Model
No
Number of Gauge Wheel* Rotations For:
1/10 Acre
1000 Sq.
Ft.
1/20
Hectare
100
Sq. M
OS1548
236
54
292
58
OS1572
157
36
194
39
NOTE:
If total weight for 3 seed cups is in
ounces, divide that weight by 48 instead of 3.
NOTE:
Field conditions will affect seeding rates.
Check amount of seed being used by noting size of
area being seeded, amount of seed added to the
seeder, and level of seed in the seedbox.
It may be necessary to make minor adjustments to
the seeding rate if the seeder has been accurately
calibrated and is seeding more or less seed than
desired.
IMPORTANT: Do Not
operate seed rate adjustment
lever at -0- setting. Seed cup damage may occur.
Do Not
set door handles and seed rate adjustment
lever to the widest open position with seed in the box
unless complete clean out is desired
.
Seed Rate Adjustment Lever
Figure 3-8
12858
Four-Position
Door Handle
Seed
Cup
Seed Rate Adjustment Lever
Drop
Tube
DO NOT operate seeder with seed rate adjustment lever
set on 0.