Great Plains 3PNG15 Operator Manual - Manual (Page 29)

Great Plains Manufacturing, Inc. Adjustments 25
10/06/2008 202-553M
Row Unit Adjustments
Refer to Figure 16 (which depicts an 00 series row unit fully
populated with all optional accessories [except Seed-Lok]
supported for use with the 3PNG12 and 3PNG15 drill)
From front to back, a Great Plains 00 Series row unit can
include the following capabilities (some optional):
1. Disc Blades: standard, 2 per row unit
Double disc blades open a furrow, creating the seed
bed. Spacers adjust the blades for a clean furrow.
See “Disc Blade Adjustments” on page 26.
2. Dual Down Pressure Springs: standard
The adjustable springs provides the force to get the
row unit and attachments into the soil. See “Opener
Down Pressure” on page 27.
3. Main Box Seed Delivery tube: standard
No adjustments are necessary.
4. Seed firmer: seed flap (shown) standard
No adjustments required. The flap may need to be
shortened if Seed-Lok is field-installed. See “Seed
Flap Replacement” on page 34 for maintenance.
Seed-Lok™ firming wheel (optional)
Improves seed-soil contact. See “Seed-Lok™ Lock-
Up” on page 28.
5. Disc Scraper: standard
In sticky soils, a scraper helps keep the opener discs
operating freely. A slotted scraper is standard. See
“Disc Scraper Adjustment” on page 27
A spring-loaded carbide scraper is optional. See
“Carbide Disc Scraper” on page 40.
6. Native Grass Box Seed Delivery tube: standard
No adjustments are necessary.
7. Small Seeds Box Seed Delivery tube: optional
No adjustments are necessary.
8. Press wheels: standard (choice of types)
The T-Handle controls press wheel height and
opener depth. The wheels close the seed trench.
See “Opener Depth (Press Wheel Height)” on
page 28.
IMPORTANT !
Do not back up with row units in the ground. To do so
will cause severe damage and row unit plugging.
Figure 16
00 Series Row Unit
28482
2
1
5
3
4
8
8
6 7