Great Plains 3N-4025P Operator Manual - Manual (Page 39)

4/23/2010 196-286M
37 Adjustments
1 x 12 Closing Wheel Option
The closing wheels can be adjusted for down
pressure, alignment and offset.
Down Pressure. Adjust closing wheel so it has
enough down force to close the seed trench with-
out unnecessary compaction.
Refer to Figure 33
Start with T-handle in first notch. If seed trench
does not close, move handle to next notch and try
again. Keep moving handle back until seed trench
closes.
Alignment. If one closing wheel is running in the
seed trench or closing wheels are not centered
over the seed trench, adjust closing wheels as
follows.
Refer to Figure 34
1. Raise the drill slightly to remove weight from
closing wheels.
2. Loosen two 1/2-inch mounting bolts (1).
3. Turn adjuster cam (2) left or right to center
wheels over the seed trench.
4. Torque 1/2-inch mounting bolts as recom-
mended, see “Appendix,” page 129.
Offset. The closing wheels can be offset to help
prevent trash from plugging the closing wheels.
To offset the closing wheels:
Refer to Figure 35
1. Raise the drill slightly to remove weight from
closing wheels.
2. Remove 5/8-inch bolt (1), spacers (2), pivot
tube (3) and hex flange nut (4) attaching
wheel (5) to press-wheel arm.
3. Move closing wheel (5) to other mounting hole
and reattach with hardware. Torque bolt as rec-
ommended, see “Appendix,” page 129.
Figure 33
Closing Wheel Down Pressure
17888
Starting
position
Move handle back for more
down pressure
17719
Figure 34
Closing Wheel Alignment
12347 Figure 35
Closing Wheel Offset
mounting hole
locations