Great Plains 8030P G1022 Operator Manual - Manual (Page 23)

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Section 3 Adjustments
60303P and 80303P Three-Point Planter 401-008M-A 5/2/07
Great Plains Mfg., Inc.
Meter Drive Adjustments
The meter clutch and meter-input shaft must be aligned.
Misalignment will cause meter malfunction and excessive
meter-housing wear. Periodically check vertical and hori-
zontal alignment of meter clutch and meter-input shaft.
Refer to Figure 3-5.
1. Latch hopper onto hopper support.
2. Check that roll pin (1) in end of the meter-input shaft is
centered. When centered, equal amounts of the roll
pin will protrude from both sides of the shaft.
3. Rotate meter-input shaft so that roll pin is vertical.
4. Rotate the drive coupler (2) on meter clutch so that the
slots are vertical.
5. Release meter clutch to engage meter-input shaft.
6. If shafts are aligned vertically, the drive coupler will en-
gage with meter-input shaft freely and the roll pin will
extend equally on each side of the drive coupler. Dis-
engage the clutch and repeat steps, checking for hor-
izontal alignment.
Figure 3-5
Vertical Alignment
7. If drive coupler does not freely engage meter-input
shaft vertically or horizontally, loosen 5/16-inch nuts
(3) shown in Figure 3-5. Engage meter clutch. Align
meter clutch with meter-input shaft.
8. Tighten 5/16-inch nuts to torque values listed on
Torque Values Chart, “Appendix,” page 39.
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Row Unit Adjustments
Down Pressure
Springs provide the down pressure necessary for opener
disks to open a seed trench. The springs allow the row unit
to float down into depressions and up over obstructions.
You can adjust down pressure individually for each row
unit. Use only enough down pressure to cut the seed
trench and maintain proper soil-firming over seed. Exces-
sive down pressure will lead to premature wear on row-
unit components.
To adjust, lift T-handle shown in Figure 3-6.
• Move T-handle back to increase spring pressure.
• Move T-handle ahead toward tractor to decrease
spring pressure.
Figure 3-6
Row Unit Spring Adjustment
Refer to the charts below for the amount of spring pres-
sure at the opener for each spring setting.
Down Pressure Charts
Medium-Duty Spring Package Pounds Pressure
First Holes (Closest to Tractor) 85
Second Holes 100
Third Holes 115
Fourth Holes 135
Fifth Holes (Closest to Hopper) 155
Heavy-Duty Spring Package Pounds Pressure
First Holes (Closest to Tractor) 155
Second Holes 175
Third Holes 205
Fourth Holes 225
Fifth Holes (Closest to Hopper) 245
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