Great Plains 3N-3020 Operator Manual - Manual (Page 38)

3N-3010 and 3N-3020
196-366M 3/29/2012
36
Press Wheel Adjustments
(20 Series Openers Only)
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.
Refer to Figure 18
To adjust, move adjustment handle as shown.
• 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.
Refer to Figure 19
NOTE: The factory setting on the press wheel is
staggered to achieve optimum residue flow. 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.
16629
Hole
locations
18410
Figure 18
Spring adjustment
Figure 19
Press wheel setting