Great Plains 3N-4025P Operator Manual - Manual (Page 125)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 121
2014-01-29 Table of Contents Index 196-538M
25 Series Seed Firmer Adjustments
Note: Applies to all row units.
Series 25 row units include a standard seed flap, and
accept one of two optional seed firmers (which may be
included in your selected opener bundle).
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.
25 Series Keeton
®
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 131
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 furrow.
25 Series Seed-Lok
®
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.
Following are two variations of lock-up for Seed-Lok
®
Check type currently installed on drill.
25 Series Seed-Lok
®
Lock-Up (2009-)
Refer to Figure 178
To lock up Seed-Lok
®
wheels:
1. Raise drill. Insert lift assist cylinder locks.
2. Rotate Seed-Lok
®
lock-up handle 90 degrees
down on top of row unit body.
3. Push up on Seed-Lok
®
wheel until wheel arm
latches up.
Figure 176
Keeton
®
Seed Firmer
20327
1
1
Figure 177
Seed-Lok
®
Lock-Up (2009-)
22909
1
2
1
1
2