Great Plains YP1625 Operator Manual - Manual (Page 66)

62 YP1225 and 1625 Great Plains Manufacturing, Inc.
401-226M 07/09/2009
Press Wheels
Attached to the rear of each row-unit is one of several
press wheel options.
To provide consistent seed firming, the press wheels are
free to move downward from their normal operating posi-
tion. This system maintains pressing action even if the
row-unit arm is lifted when the disks encounter obstruc-
tions.
Refer to Figure 81
Press wheels are attached to each row-unit body. The
press wheels close the seed trench and gently press soil
over seed.
An adjustable spring in the press wheel mechanism cre-
ates the down pressure needed to close the seed trench.
The amount of force needed will vary with field condi-
tions.
To adjust, move adjustment handle.
• For less down pressure, move handle forward toward
planter.
• For more down pressure, move handle back away
from planter.
Note: Increased press wheel spring force may require in-
creased row-unit down force to maintain depth.
Note: The factory setting on the press wheel is staggered
to achieve optimum residue flow.
Refer to Figure 82
If you want to adjust press wheels from staggered to
even, remove
5 ⁄
8
in bolt , and lock washer . Reinstall
spacer , press wheel and hardware to the other hole
location.
Refer to Figure 83
If one press wheel is running in the seed trench or the
wheels are not centered over the seed trench, adjust the
press wheels as follows:
1. Raise planter slightly to remove weight from press
wheels.
2. Loosen two 1 ⁄
2
in bolts.
3. Turn press wheel adjuster cam left or right to center
the wheels over the seed trench.
4. Retighten the 1 ⁄
2
in bolts.
Figure 81
Press Wheel Adjustment
21948
More Down
Pressure
Less Down
Pressure
Figure 82
Press Wheel Stagger
22907
2
3
4
1 5
1 3
4 5
Figure 83
Press Wheel Alignment
12418