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1. 1/2-13 Locknuts on both ends of the Adjusting Screw
are used to adjust all Seed Meters the same amount.
See Figures 4-6 and 4-7. 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. Front Seed Box: Adjusting the LH and RH Seed
Shafts where they join changes Seed Meters on the
left Seed Box in comparison with Seed Meters on the
right Seed Box. Remove Seed Shaft Coupling that
clamps the left and right Seed Shafts together. Turn
RH Seed Shaft threading it in or out as needed to
equalize Seed Meters. Re-Install Seed Shaft
Coupling where the RH and LH Seed Shafts come
together. Figure 4-10.
Figure 4-10: Front Box Seed Shaft Coupler
3. Rear Seed Box: 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.
Figure 4-13.
9K998
Figure 4-11: Rear Box Seed Shaft Couple
4. Front Seed Box: 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 and the
1/4-20 Nut that attaches the Seed Meter Support to
the Seed Meter Cups. Figure 4-9. 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.
Figure 4-12. Check for binding by turning Seed
Shaft. After adjustments have been made seal the
Seed Meter Cups to Seed Box with clear Silicone.
Figure 4-12: Large Seed Meter
MAINTENANCE
4-9
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