Great Plains YP4425A Operator Manual - Manual (Page 83)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 79
2012-02-23 Table of Contents Index 401-805M
Seed Firmer Adjustments
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 disc blades may be sharp. Use caution when making
adjustments in this area. To adjust the Keeton
®
Seed Firmer,
lower the planter 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 101
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 102 (which depicts a row unit with discs, side
depth wheels/arms and press wheels removed for illustrative
purposes - removal is not necessary for lock/unlock)
To lock up Seed-Lok
®
wheels:
1. Raise planter. Insert lift assist cylinder locks.
2. Lift Seed-Lok
®
lock-up handle until lever stop is
free to rotate.
3. Rotate lever stop to side/idle position . Release
lock-up handle .
4. Push up on Seed-Lok
®
wheel until wheel arm
latches up .
To release a locked-up Seed-Lok
®
:
1. Insert a
1 ⁄
4
in tool drive tip in the tool hole of the
handle . Alternatively, lift up on the wheel .
1. Rotate the handle clockwise (handle arm up) until
the Seed-Lok
®
wheel releases at the latch point
and falls free.
1. While holding the handle up, rotate the raised portion
of the lever stop
under both sides of the handle
at the arm end. Remove the tool.
Figure 101
Keeton
®
Seed Firmer
28316
1
1
Note: Engage the lever stop under the handle when
Seed-Lok
®
is in use. If left disengaged , a furrow
obstruction could cause unintended lock-up.
Figure 102
Seed-Lok
®
Lock-Up
31543
2
3
1
4
2
3
5
6
1 2
3
1
4
5
6
1 4
5
2 2