Great Plains 3N4010HDA Operator Manual - Manual (Page 51)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 47
2013-09-24 Table of Contents Index 196-444M
Seed Firmer Adjustments
10HD Series row units include a seed flap, or one of two
optional seed firmers.
The seed flap requires no adjustment, but may need to
be replaced if worn, and may need to be shortened if an
optional seed firmer is added after initial delivery.
Sharp Object Hazard:
Row unit disk blades may be sharp. Use caution when making
adjustments in this area. To adjust the Keeton Seed Firmer,
lower the drill until the disks 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 47
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 48 (which depicts a row unit with the opener
blades removed for clarity)
To lock up Seed-Lock wheels:
1. Pull firming-wheel arm up as high as possible.
2. Flip the lock tip to hold the arm up.
Figure 47
Keeton Seed Firmer
26390
1
1
Figure 48
Seed-Lok™ Lock-Up
27072
2
1
1
2