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Seed Meter Adjustment
IMPORTANT
The Clutch must be disengaged when Seed Shafts
are turned manually for Calibration.
IMPORTANT
All the Seed Meters MUST BE CLOSED!
All Seed Meters must be set the same to ensure seeding
uniformity. To check, set the Seed Rate Adjusting Nut to
0-A. The "A" on the Seed Rate Adjusting Nut is
positioned over the "0" (the nut covers half of the "0") and
snug against the Bearing. See Figure 4-6.
Adjusting
Screw
DO NOT
Loosen or Adjust
1/2-13 Locknut
1-8 Nut
Figure 4-6: Seed Box Seed Rate Adjustment
All Seed Meters should be closed. Seed Meter Feed
Shutoff against Seed Meter Cup Star Washer in Seed
Meter Cup. See Figure 4-7. If not, there are three
adjustments to make as needed.
Feed Roll
Coupler
Seed Meter
Cup
RH Seed
Shaft
Seed Meter
Cup Star Washer
Figure 4-7: Seed Shaft Coupler
1P342-0621
DO NOT
Loosen or Adjust
1/2-13 Locknut
Seed Shaft
Seed Rate
Adjusting Nut
Bearing
Op SeedRateAdj 8-10-12
LH Seed
Shaft
Feed Roll
Jam Nut
Set
Screw
IMPORTANT
Ensure the Seed Shaft can turn freely without any
binding when the Seed Meters are open or closed
after servicing.
1. 1/2-13 Locknuts on both ends of the Adjusting Screw
are used to adjust all Seed Meters the same amount.
See Figure 4-6. To adjust Seed Meters to be closed
at "0A", loosen 1/2-13 Locknuts and set Adjusting
Screw to "0A". Slide Seed Shaft to close all Seed
Meters. Tighten 1/2-13 Locknuts against Adjusting
Screw.
2. Seed Box Feed Roll Coupling which joins the left and
right Seed Shafts changes Seed Meters on the left
Seed Box in comparison with Seed Meters on the
right Seed Box. To adjust Feed Roll Coupling, loosen
Jam Nuts and Set Screws on Coupling RH Seed
Shaft is treaded into Coupling. Turn RH Seed Shaft
threading it in or out as needed to equalize Seed
Meters. Re-tighten Set Screws against flat side on
Seed Shaft, re-tighten Jam Nuts. See Figure 4-7.
3. Individual Seed Meter Cups can be adjusted as
required. Adjustments can be made by loosening the
1/4-20 x 5/8 Machine Screws that mount the Seed
Meter Cup to the Seed Box. Adjust the affected Seed
Meter Cup so the Feed Shutoff is against the Seed
Meter Cup Star Washer in the Seed Meter Cup
(closed). Be sure the Feed Roll stays engaged in the
Seed Meter Cup Star Washer. See Figure 4-8.
Seed Meter
Washer
Cup
Feed
Figure 4-8: Small Seed Meter
MAINTENANCE
Seed Meter Cup
Star Washer
Feed Roll
4-7
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