Great Plains 3P605NT Material Rate - Manual (Page 14)

Great Plains Mfg., Inc.
12
151-061B 05/18/2007
Native Grass Attachment
The Native Grass box is for seeding fluffy, native grass
blends like Big Blue Stem, Indian Grass, and Side-oats
Grama.
To adjust seeding rate:
11. Find the desired pounds per acre on the Native
Grass Rate Chart.
Refer to Figure 7
12. Determine which sprocket is required for the native
grass box. The sprockets are stored on the right
hand side of the native grass box.
a. To change sprockets, loosen the chain idler
and remove chain.
b. Loosen the two set screws on the sprocket to be
removed .
c. Replace with desired sprocket.
13. Move gearbox selector handle to desired drive
type.
Checking Native Grass Seed Rate
1. Record weight of an empty container large enough
to hold seed metered for one acre.
2. Fill three or more compartments at least
1 ⁄
2
full of
seed at the outboard end of the box. Pull seed
tubes off the openers under the compartments.
• For drills built after October 1, 2005, calibrate
using gauge wheel or supplied calibration crank.
• For drills built before October 1, 2005, calibrate
using gauge wheel or order the calibration crank kit
available through your Great Plains Dealer.
• To calibrate on pull-type drills, use either the left
drive wheel or supplied calibration crank.
• To calibrate on 3-point drills, use either center drive
wheel or supplied calibration crank.
3. If calibrating using left drive wheel, lower drill
hydraulically to planting position in order to acti-
vate clutch. Raise tire off ground using jack. If
using calibration crank, attach crank to jackshaft.
If calibrating with center drive wheel on 3-point
drills, raise drill to get center drive wheel off the
ground. To calibrate using calibration crank, attach
crank to upper jackshaft.
Figure 7
Native Grass Range
Sprocket Change
18670
1
2