Great Plains 1007NT Operator Manual - Manual (Page 38)

34 1007NT Great Plains Manufacturing, Inc.
150-290M 10/06/2010
Row Unit Adjustments
Refer to Figure 23 (which depicts an 07 series row unit fully
populated with all optional accessories [except Fertilizer and
Seed-Lok] supported for use with the 1007NT drill; coulter is
not part of opener assembly and is not shown)
From front to back, a Great Plains 07 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 35.
2. Dual Down Pressure Springs: standard
The adjustable springs provides the force to get the
row unit and attachments into the soil prepared by
the coulter. See “Opener Down Pressure” on
page 36.
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 46 for maintenance.
Seed-Lok™ firming wheel (optional)
Improves seed-soil contact. See “Seed-Lok™ Lock-
Up” on page 37.
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 36
A spring-loaded carbide scraper is optional. See
“Carbide Disc Scraper” on page 56.
6. Native Grass Box Seed Delivery tube: optional
No adjustments are necessary.
7. Fertilizer Delivery tube: optional (not shown)
No adjustments are necessary.
8. Small Seeds Box Seed Delivery tube: optional
No adjustments are necessary. If Fertilizer is also
installed, small seeds are delivered by a side tube
(not shown).
9. 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 37.
Do not back up with row units in the ground. To do so will
cause severe damage and row unit plugging.
Figure 23
07 Series Row Unit
28380
2
1
5
3
4
9
9
6 8