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Seed Shaft
Coupling Half
Bolt,1/4-20
x 1-3/4
RH
Seed Shaft
LH
Seed Shaft
Figure 5-10: 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.
See Figure 5-13.
Feed Roll
Coupler
Seed Meter
Cup
LH Seed
Shaft
Seed Meter
Cup Star Washer
Figure 5-11: Rear Box Seed Shaft Couple
9K998-0522
Seed Shaft
Coupling Half
Locknut,
Flange 1/4-20
SL2 OpSeedShaftCoupler
RH Seed
Shaft
Feed Roll
Jam Nut
Set
Screw
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. See Figure 5-9. 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. See
Figure 5-12. Check for binding by turning Seed
Shaft. After adjustments have been made seal the
Seed Meter Cups to Seed Box with clear Silicone.
Seed Meter
Cup
Washer
Figure 5-12: Large Seed Meter
5. Rear 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. 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 5-13.
Seed Meter
Cup
Washer
Feed
Figure 5-13: Small Seed Meter
MAINTENANCE
Feed Roll
Seed Meter Cup
Star Washer
Seed Meter Cup
Star Washer
Feed Roll
5-9
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