Great Plains 1005NT Operator Manual - Manual (Page 23)

21
Section 3 Adjustments
4/12/05 705 and 1005 End-Wheel No-Till Drill 150-213M
Great Plains Mfg., Inc.
Native Grass Option
Native-grass metering is directly related to revolutions of
the clutch shaft. Different sprocket combinations give a
broad range of seeding rates. Rates listed on the charts
are for total bulk material, including live and inert material.
Many factors affect seeding rates including seed weight,
seed size, relative humidity, moisture content of seed, dif-
ferent proportions of seed types and seed density. Tire
size, pressure and slippage can also affect rates. Set and
check the seeding rate using the procedures below, then
readjust the rate as necessary.
To set the seeding rate on the native-grass option:
1. Find the sprocket combination for your desired appli-
cation rate and drill row spacing on Native Grass Rate
Charts, page 22.
2. Arrange clutch-shaft (1) and upper-shaft (2) sprock-
ets. See Figure 3-1. Loosen idler arm and remove
chain from sprockets. If necessary, loosen set screws
and move clutch-shaft sprocket to align correct
sprockets. Reinstall chain over correct sprockets.
Figure 3-1
Shaft Sprockets, Native Grass
3. If necessary, switch drive (1) and driven (2) sprockets
under end panel. Refer to Figure 3-2. Loosen idler
arm and remove chain. Remove lynch pins on drive
and driven sprockets and rearrange sprockets accord-
ingly.
Figure 3-2
Drive and Driven Sprockets, Native Grass
4. After setting your sprockets, follow procedures under
Checking the Seeding Rate, page 12, to calibrate drill
for your seed mix.
18112
1
2
1
2
18113
Figure 3-A
Rod Agitator’s
19329
Figure 3-B
Early Model Agitators
20138
IMPORTANT: To prevent damage to the Native Grass box
agitator and its drive components:
Do not transport drill with Native Grass box loaded with
seed.
IMPORTANT: The native grass attachment comes
standard with the agitator shown in Figure 3-A. However,
if your 705 drill has a S/N 1948Q and below, or if your
1005 drill has a S/N 5533U and below, you will have the
standard agitator or the optional rod agitator shown in
Figure 3-B. To order the new style agitator please contact
your Great Plains dealer.
IMPORTANT: The rate charts are a guide only. Because
of wide variations in seed size and weight, you must cal-
ibrate the drill to your seed. Set your drill according to
the charts, then follow procedures under Checking the
Seeding Rate, page 12.