Great Plains 3N-4025P Operator Manual - Manual (Page 127)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 123
2014-01-29 Table of Contents Index 196-538M
Press Wheel Stagger
The factory stagger setting has been found optimal for
residue flow. If your conditions, such as wet soil or
shallow planting, appear to require even press wheels,
you might try one row before re-configuring the entire
drill. To change the stagger:
Refer to Figure 180
1.
Raise the drill and install the lift assist cylinder locks.
See “Lift Cylinder Lock-Up” on page 26.
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.
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 181
1.
Determine how far, and in which direction, the press
wheel assembly needs to move to center the wheels.
2. Raise drill and install lift assist cylinder locks. See
“Lift Cylinder Lock-Up” on page 26.
3. Loosen the
1 ⁄
2
inch 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
available. Consult your Great Plains dealer.
Figure 180
Press Wheel Force & Stagger
22907
a
4
5
3
2
c
1
6
1 2 3
4
5 4
6
Note: Do not loosen the square-head bolts forward of the
hex-head bolts.
Figure 181
Press Wheel Centering
(View from beneath opener)
25277
9
8
7
c
7
8 9
c
9
8 9