Great Plains 2N-3020 Operator Manual - Manual (Page 31)

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Section 3 Adjustments
2/28/08 2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A
Great Plains Mfg., Inc.
Disk Adjustment
The aggressiveness and the mark left by the disk may be
changed by two methods:
1. Angle of Cut. Refer to Figure 3-12. To change the an-
gle of cut, loosen the two 1/2-inch bolts holding the
disk assembly. Rotate the disk assembly as desired.
Figure 3-12
Disk Angle
2. Direction of Cut. The disk may be mounted to throw
dirt in or out for different marks in different soil condi-
tions. Refer to Figure 3-13. To change the direction of
cut:
a. Reverse the disk by removing the four lug bolts on
the disk hub. Remount the depth band and lug
bolts.
b. Turn the entire disk assembly by removing the two
1/2-inch bolts and turning the assembly one-half
turn. Reinstall the 1/2-inch bolts and set the disk
angle as desired.
11757
Figure 3-13
Direction of Cut Reversed
Folding Speed
The dual markers are equipped with hex-head screws to
adjust folding speed. The screws are on the sequence-
valve body as shown in Figure 3-14. There are two
screws–one controls folding speed (1), the other controls
unfolding speed (2). Turn the adjustment screws clock-
wise for slower folding or counterclockwise for faster fold-
ing. Adjust to a safe speed. Excessive speed could
damage the markers and void the warranty.
Figure 3-14
Speed Adjustment, Dual Markers
16403
14048