Great Plains NTA2007HD Operator Manual - Manual (Page 93)

Great Plains Manufacturing, Inc. Contents Index Adjustments 89
04/04/2011 Contents Index 166-283M
07HD Row Unit Adjustments
Refer to Figure 74 (which depicts a row unit fully populated
with all optional accessories supported for use with the
NTA607HD or NTA2007HD)
From front to back, a Great Plains 07HD Series row unit
can include the following capabilities (some optional):
1. Frame-Mount Coulter: optional
See “Frame-Mounted Coulter Adjustments” on
page 87.
2. HD Down Pressure Spring: standard
Each row unit is mounted on the NTA607/2007HD
drill via arms which allow the row unit to indepen-
dently 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 90.
3. 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 90.
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 disk blades. See
“Disk Scraper Adjustments” on page 91.
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 131) 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 92.
Seed-Lok™ firming wheel (not shown)
Improves seed-soil contact. See “Seed-Lok™ Seed
Firmer Lock-Up” on page 92.
8. Fertilizer Tube: optional
This tube delivers material from hopper II on double-
shoot drills. The delivery angle is adjustable
(page 93).
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 seed-
ing depth via the T-handle. See “Opener Depth
(Press Wheel Height)” on page 93.
Null4:
Machine Damage Risk:
Do not back up with row units in the ground. To do so causes
severe damage and row unit plugging.
Figure 74
07HD Series Row Unit
31163
2
3 4
7
5
9
1
6
8
4