Great Plains YP1625 Operator Manual - Manual (Page 75)

Great Plains Manufacturing, Inc. Adjustments 71
03/12/2012 401-226M-A
Press Wheel Adjustments
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 106
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 107
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.
Press Wheel Centering
If one press wheel is running in the seed trench, or the
wheels are not centered over the trench, the angle
of
the press wheel assembly can be adjusted as follows:
Refer to Figure 108
1.
Determine how far, and in which direction, the press
wheel assembly needs to move to center the wheels.
2. Raise planter and install lift assist cylinder locks. See
“Important Safety Information” on page 1.
3. Loosen the 1 ⁄
2
in hex-head bolts and .
4. Turn the hex head cam under the forward hex
head jam bolt , and move the required amount.
5. Tighten both hex-head bolts and .
If press wheel adjustments do not provide satisfactory
furrow closing, your conditions may require alternate
press wheels. A variety of wheel assemblies are avail-
able. Consult your Great Plains dealer.
End of “Adjustments”.
FigureSpacer:
Figure 106
Press Wheel Adjustment
21948
FigureSpacer: More Down
Pressure
FigureSpacer: Less Down
Pressure
FigureSpacer:
Figure 107
Press Wheel Stagger
22907
2
3
4
1 5
1 3 4
5
FigureSpacer:
Note: Do not loosen the square-head bolts forward of the
hex-head bolts.
Figure 108
Press Wheel Centering
(View from beneath opener)
25277
9
8
7
c
7
8 9
c
9
8 9