Great Plains 3N-4025P Operator Manual - Manual (Page 45)

4/23/2010 196-286M
43 Adjustments
Refer to Figure 48
Set seeding depth by adjusting handles. To ad-
just, first raise openers slightly, then lift and slide
handles on top of openers. Adjust all handles to
the same setting.
• For shallower seeding, slide handles forward
toward drill.
• For deeper seeding, slide handles back away
from drill.
Press Wheel
Refer to Figure 49
Press wheels are attached to each opener body.
The press wheels close the seed trench and gen-
tly press soil over seed.
An adjustable spring in the press-wheel mecha-
nism creates the down pressure needed to close
the seed trench. The amount of force needed will
vary with field conditions.
To adjust, move adjustment handle.
• For less down pressure, move handle forward
toward drill.
• For more down pressure, move handle back
away from drill.
NOTE: Increased press wheel spring force
may require increased opener down force to
maintain depth.
NOTE: The factory setting on the press wheel
is staggered to achieve optimum residue flow.
Refer to Figure 50
If you want to adjust press wheels from staggered
to even, remove 5/8 inch bolt (1), lock washer (2)
and nut (3). Reinstall spacer (4), press wheel (5)
and hardware to the other hole location.
If you want to move the press wheels apart, re-
move spacer (6) from beneath the bolt head (1)
and place it next to spacer (4).
Figure 48
25 Series Opener Depth
21949
Handle
More down
pressure
Less down
pressure
Figure 49
Press Wheel Adjustment
21949
Figure 50
Press Wheel Stagger
22527
Hole
locations