Great Plains YP825AR Operator Manual - Manual (Page 85)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 81
2014-06-17 Table of Contents Index 401-923M
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 103
To lock up a Seed-Lok
®
wheel:
1. Raise planter. Insert lift assist cylinder locks.
2. Push up on Seed-Lok
®
wheel until wheel arm
latches up.
To release a Seed-Lok
®
wheel:
1. Lift up at Seed-Lok
®
wheel to reduce force
required to release lever.
2. Flip lever up slightly until Seed-Lok
®
wheel
releases.
Press Wheel Adjustment
The press wheels close the furrow which gently presses
the soil over the seed to ensure good seed-to-soil
contact for even emergence.
To provide consistent seed firming, the press wheels are
free to move downward from their normal operating
position. This system maintains closing/pressing action
even if the row unit arm is lifted when the disks encounter
obstructions.
There are three adjustments available on the press
wheel assembly:
Refer to Figure 104
1.
Down pressure (shown at maximum)
2. Wheel stagger (shown staggered)
3. Centering (see Figure 106 on page 82)
Press Wheel Down Pressure
Handle
sets down pressure, which may need
adjustment for different soil types and field conditions.
• Relax the handle forward (in the direction of travel) for
decreased down pressure.
• Pull the handle back for increased down pressure.
Note: Higher press wheel down pressures reduce the
down force on the main row unit shank
components, such as the openers. High press
wheel settings may require an increase in overall
row unit down force. See page 66.
Figure 103
Seed-Lok
®
Lock-Up
29985
3
2
2
2
3
Higher press wheel down pressures reduce the down
force on the main row unit shank components, such as
the openers. High press wheel settings may require an
increase in overall row unit down force. See page 66.
Figure 104
Press Wheel Adjustments
25118
1
3
2
1
1