GREAT PLAINS YP2425, Руководство оператора

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2016-11-16 Table of Contents Index 401-406M
YP2425 and YP2425F Table of Contents Index Adjustments 84
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 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 118
1. Down pressure (shown at maximum)
2. Wheel stagger (shown staggered)
3. Centering (see Figure 120 on page 85)
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 67.
Press Wheel Stagger
The factory stagger setting has been found optimal for
residue flow. If your conditions appear to require even
press wheels, you might try one row before
re-configuring the entire planter. To change the stagger:
Refer to Figure 119
1. Raise the planter and install the lift assist cylinder
locks. See “
Lift Cylinder Lock-Up ” on page 33.
2. Remove the bolt , nut and lock-washer for
the left press wheel .
3. Move the spacer and wheel to the forward of
the two mounting holes at .
4. Re-install the bolt, lock washer and nut. Tighten.
1
3
2
Figure 118
Press Wheel Adjustments
25118
1
8
7
6
5
3
4
2
Figure 119
Press Wheel Force & Stagger
22907
1
1
4 5 6
8
7 8
2