Great Plains NTA2007 Operator Manual - Manual (Page 98)

94 NTA607 or NTA2007 Table of Contents Index Great Plains Manufacturing, Inc.
166-372M Table of Contents Index 2012-01-05
07 Series Row Unit Adjustments
Refer to Figure 73 (which depicts a row unit fully populated
with all optional accessories supported for use with the
NTA607 or NTA2007)
From front to back, a Great Plains 07 Series row unit can
include the following capabilities (some optional):
1. Frame-Mount Coulter: optional
See “Frame-Mounted Coulter Adjustments” on
page 92.
2. Down Pressure Spring: standard
Each row unit is mounted on the implement via arms
which allow the row unit to independently move up
and down. The adjustable spring sets the force at
which the opener rides up over obstructions. See
“Row Unit Spring Adjustment” on page 95.
3. 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 95.
4. Seed delivery tube: standard
This tube delivers material from hopper I on single-
hopper or double-shoot drills. It delivers material
from both hopper I and hopper II on single-shoot
drills. No adjustments are necessary.
5. Inside Scraper: optional
Helps prevent clogging between disc blades. See
“Disc Scraper Adjustments” on page 96.
6. Liquid Fertilizer Tube: optional
This is present only if both a liquid fertilizer system
and Keeton
®
seed firmers are installed. It requires
no adjustment.
7. Seed firmer: seed flap (not shown) standard:
A seed flap requires no adjustment, other than
replacement (page 135) when worn.
Keeton
®
seed firmer (shown)
Improves seed-soil contact, and provides a stable
arm for a low-rate liquid fertilizer delivery tube. See
“Keeton
®
Seed Firmer Adjustment” on page 97.
Seed-Lok™ firming wheel (not shown)
Improves seed-soil contact. See “Seed-Lok™ Seed
Firmer Lock-Up” on page 97.
8. Dry Fertilizer Tube: optional
This tube delivers material from hopper II on double-
shoot drills. The delivery angle is adjustable
(page 98).
9. Press wheels: standard (choice of types)
These close the seed trench.
The press wheels also support the free end of the
row unit, and provide the primary control over
seeding depth via the T-handle. See “Opener Depth
(Press Wheel Height)” on page 98.
Machine Damage Risk:
Do not back up with row units in the ground. To do so causes
severe damage and row unit plugging.
Figure 73
07 Series Row Unit
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