2SF24 and 2SF30
Adjustments
37
2018-08-02
155-015M-A
Seeding Adjustments
1.
Raise outboard ends of drill boxes high enough to lift
the end wheels off the ground. Rotate gauge wheel
to see that seed cups and drive are working properly,
not binding and free from foreign material.
2.
To adjust your seeding rate, first you must decide
which sprocket arrangement you need (see seeding
charts on next pages).
a.
To change sprockets, remove nut on the double
speed change sprocket and turn sprocket over.
b.
Loosen the idler arm bolt, put chains on and
tighten both bolts. (The lengths of the chains will
need to be adjusted in order to make this
change.)
There are many factors which will affect seeding rates,
including seed treatment, weight of seed, size of seed,
surface condition of seed, and tire configuration,
pressure and slippage. Minor adjustments will probably
be needed to compensate for these factors.
The pounds-per-acre in the seed charts are based on
drills having 9.5L X 15 inch implement gauge wheel tires.
The large differences in seed size and treatment can
cause a wide variation in actual seeding rates. The seed
rate charts on the following pages are based on average
size seed. This may differ from the seed you are using.
Use the seed rate chart as a guide.
Set the pounds-per-acre desired at the indicator number
for your row spacing and complete the following
procedure to calibrate the drill for your specific seed.
a.
Place several pounds of seed over three of the
seed cups at the outboard end of the drill box.
b.
Pull the seed tubes off of these three disk
openers
c.
Raise the drill off the ground.
d.
Place a container under the three seed tubes to
gather the seed as it is metered.
e.
Rotate the drive gauge wheel until one acre has
been tallied on the acremeter.
This will be approximately 225 rotations on a 24
foot drill and approximately 182 rotations on a 30
foot drill.
Be sure to check the three seed cups to make
sure each cup has plenty of seed coming into it.
f.
Weigh the seed which has been metered. Divide
by three. This will give you the ounces/pounds
metered by each seed cup.
Multiply by the number of openers on your drill to
arrive at the total pounds-per-acre your drill
would meter at that setting.
If the seeding rate is different than desired, set
your seed cup adjustment lever accordingly.
Repeat step a through step f on each drill section.
You may want to repeat the calibration procedure if the
results of your calibration vary greatly from the
suggested setting contained in this manual.
Tire size and field conditions will also affect seeding
rates. Be certain that your drill tires are 9.5L x 15" and
that they have the proper inflation.
When drilling, check the amount of seed you are using
by noting acres drilled, amount of seed added to drill,
and level of seed in drill box.
If you suspect that you are drilling more or less than
desired, and you have accurately calibrated the drill to
your seed, you may need to adjust the seeding rate
slightly to compensate for your field conditions.
NOTE:
This drill is equipped with four-position feed cup door
on each feed cup. The highest handle position is for
wheat and other small grain seeds, the second
handle position is for soybean and other large grain
seeds. Should excessive cracking occur to the large
seeds, drop the handle to the third position. The
wide-open position will allow complete clean out of
the feed cup. Make sure all handles are in the same
position before drilling.
NOTE:
Do not open the cup up to the wide-open position
with seed in the box unless complete clean out is
desired.
