GREAT PLAINS Yield-Pro 3PYPA, Руководство оператора

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Great Plains | 401-647M | 2019-06-11 Table of Contents Index 86
3PYPA Table of Contents Index Adjustments
3. 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.
Seed-Lok
®
Seed Firmer Lock-Up (older style)
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 118
To lock up Seed-Lok
®
wheels:
1. Raise planter. 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.
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 and a fourth option on press wheel
assemblies with cast wheels:
Refer to Figure 119
1. Down pressure (shown at maximum)
2. Wheel stagger (shown staggered)
3. Centering (see Figure 121 on page 87)
4. Cast Wheel Plow Angle (see Figure 122 on page 88)
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.
2 2
Figure 118
Seed-Lok
®
Lock-Up (older style)
22909
2
3
1
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 71.
Figure 119
Press Wheel Adjustments
25118
1
3
2
1
1