Great Plains YP3025 Operator Manual - Manual (Page 87)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 83
2013-09-09 Table of Contents Index 401-703M
Press Wheel Adjustment
The press wheels close the furrow which gently presses
the soil over the seed to ensure good seed-to-soil con-
tact for even emergence. On 10HD Series openers, the
press wheel height also controls seed depth.
To provide consistent seed firming, the press wheels are
free to move downward from their normal operating posi-
tion. This system maintains closing/pressing action even
if the row unit arm is lifted when the disks encounter
obstructions.
Press wheel adjustments available depend on the row
unit Series:
10HDP Series: page 60
20P Series: this page
25P Series: page 84
Note: On 20P and 25P Series, 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 62.
20P Series Press Wheel Adjustment
Refer to Figure 113
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 114
To adjust press wheels between staggered to even,
remove
5 ⁄
8
in nut and inside lock washer . Remove
press wheel, keeping spacer , outside lock washer
and bolt with wheel. Move wheel to other mounting
hole and re-secure.
If one press wheel is running in the seed trench or the
wheels are not centered over the seed trench, adjust the
press wheels by adding or removing spacers
.
Figure 113
Press Wheel Adjustment
21949
More Down
Pressure
Less Down
Pressure
Figure 114
Press Wheel Stagger
27464
4
2
3
2
1
1 2
3 2
4
3