Great Plains 2525P Operator Manual - Manual (Page 51)

Great Plains Manufacturing, Inc. Adjustments 47
2013-05-10 118-231M
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.
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 and a fourth option on press wheel
assemblies with cast wheels:
Refer to Figure 65
1.
Down pressure
2. Wheel stagger (shown staggered)
3. Centering (see Figure 67 on page 48)
4. Cast Wheel Plow Angle (see Figure 68 on page 48
Press Wheel Down Pressure
Handle sets down pressure, which may need adjust-
ment 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 pres-
sure.
Note: Higher press wheel down pressures reduce the
down force on the main row unit shank compo-
nents, such as the openers. High press wheel set-
tings may require an increase in overall row unit
down force. See page 29.
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 reconfguring
the entire drill. To change the stagger:
Refer to Figure 66
1.
Raise the drill.
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.
Figure 65
Press Wheel Adjustments
25118
1
3
2
+ -
Figure 66
Press Wheel Force & Stagger
22907
1
8
7
6
5
3
4
2
1
-
1 +
4 5 6
8
7 8
2