Great Plains NTA3007 Operator Manual - Manual (Page 117)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 113
2012-07-02 Table of Contents Index 166-371M
Seed Firmer Adjustments
07 Series row units include a seed flap, and accept one
of two optional seed firmers.
The seed flap requires no adjustment, but may need to
be replaced if worn (page 147), and may need to be
shortened if an optional seed firmer is added after initial
delivery.
Sharp Object Hazard:
Wear gloves. Use caution when making adjustments in this
area. Row unit discs may be sharp and contaminated with soil.
To adjust the Keeton
®
Seed Firmer, lower the drill until the
discs of the row units are resting on the ground.
Keeton
®
Seed Firmer Adjustment
The optional Keeton
®
Seed Firmer is an engineered
polymer shape that slides down the seed trench. It traps
seeds as they exit the seed tube and firms them into the
bottom of the “V”.
Refer to Figure 115
The firmer is provided with a preset tension which is
recommended for using the first year. The tension
screw
can be tightened in subsequent years according
to your needs. Firmers should provide just enough tension to push seeds to the bottom of the trench.
Seed-Lok™ Seed Firmer Lock-Up
Optional Seed-Lok firming wheels provide additional
seed-to-soil contact. The wheels are spring loaded and
do not require adjusting. In some wet and sticky
conditions the wheels may accumulate soil. To avoid
problems associated with this, you can lock-up the
firmers.
Refer to Figure 116 (shown with an opener disc removed for
clarity - this task can be performed with discs mounted)
To lock up Seed-Lok™ wheels:
1. Pull catch wire aside.
2. Pull firming-wheel arm up and release wire to
catch arm.
Figure 115
Keeton
®
Seed Firmer
26443
1
1
Figure 116
Seed-Lok™ Lock-Up
27122
1
2
1
2