Great Plains NTA3007HD Operator Manual - Manual (Page 98)

94 NTA907HD or NTA3007HD
166-207M 04/04/2011
07HD Row Unit Adjustments
Refer to Figure 101
(which depicts a row unit fully populated with all optional ac-
cessories supported for use with the NTA907HD and
NTA3007HD, including frame-mounted coulter, which is
mounted independently of the row unit)
From front to back, a Great Plains 07HD Series row unit
can include the following capabilities (some optional):
1. HD Down Pressure Spring: standard
Each row unit is mounted on the NTA907/3007HD
drill via extended parallel arms which allow the row
unit to independently move up and down while
remaining parallel to the ground. The adjustable
spring provides the force to get the row unit and
attachments into the soil. See “Row Unit Spring
Adjustment” on page 95.
2. Disk Blades: standard, 2 per row unit
Double disk blades open a furrow, creating the seed
bed. Spacers adjust the blades for a clean furrow.
See “Disk Blade Adjustments” on page 95.
3. Seed delivery tube: standard
No adjustments are necessary.
4. Inside Scraper: optional
Helps prevent clogging between disk blades. See
“Disk Scraper Adjustments” on page 96.
5. Seed firmer: seed flap (not shown) standard:
Keeton seed firmer (not 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 (shown)
Improves seed-soil contact. See “Seed-Lok™ Seed
Firmer Lock-Up” on page 97.
6. Press wheels: standard (choice of types)
These close the seed trench. The wheels also sup-
port the free end of the row unit, and provide the pri-
mary control over seeding depth via the T-handle.
See “Opener Depth (Press Wheel Height)” on
page 98.
Do not back up with row units in the ground. To do so will
cause severe damage and row unit plugging.
Null4:
Figure 101
07HD Series Row Unit
29439
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2 3
5
4
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