Operation 21
MAN0988 (11/5/2012)
Primary Seed Cup Concave Lever Adjustment
The Primary seed cup comes equipped with an adjust-
able concave to handle a wide variety of seed sizes.
For small seeds, including grass seeds, the concave
should be at the highest position. This position will pre-
vent the loss of seed flowing through the seed cup. For
larger seeds, including soybeans, the concave should
be moved to a lower position. For minimum seed rates,
the concave should only be opened to the size of the
seed. This will prevent cracking of large seeds by the
seed cup. Opening further will increase seed rates.
See Figure 23.
Figure 24. Legume Seed Rate Adjustment Lever
Figure 25. Pointer, Legume Box
Legume Seed Cup
The Legume seed box is equipped with PVC tubes to
place the legume seed in the transition tray for the pri-
mary seed box, ahead of the front roller. The PVC
tubes can be cut and the tubes repositioned in the
Legume transition tray for seed to be dropped ahead of
the cultipacker.
Figure 26. Legume PVC Tubes
Operating Tips
IMPORTANT
■ Before closing down the cup (reducing rates),
the operator should make certain that the cups are
not full of seed. If cups are full of seed (especially
small, round, hard seed), it may be necessary to
cover the meter holes and run seeder a short dis-
tance to reduce level of seeds in meter. Failure to
do so could result in damage to seed cup.
1. Do not allow dirt to build up on the roller sprockets.
Clean sprockets and chain as needed. Excessive
buildup of material can cause damage to the roller
and idler shafts.
2. Always run the drive chain with some slack in the
chain. An extremely tight chain can damage the
roller shaft, the roller bearings, and the idler shaft
and bearing.
Legume
Transition Tray
Primary
Transition Tray
(Rev. 1/08/2020)
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