Radial Bean Meter Operating Characteristics

IMPORTANT: The graph shows the operating characteristics of the radial bean metering unit.

The operating band illustrates how the radial bean metering unit performs with regard to the desired population (indicated by the horizontal line). The width of the band is due to various sizes and shapes of seeds.

Best results are obtained when the planter is operated below the full maximum speed.

Large beans may result in lower rates than those in the chart at higher planting speeds. Small beans may give somewhat higher rates at lower planting speeds. Actual rates MUST be checked in the field at planting speed, and planter settings changed accordingly.

Metering rates can vary depending upon the surface texture of the bean as well as whether or not the bean is coated with seed treatment. These factors, in combination with variations in seed size, can result in differences between the rates given in the charts versus what is actually planted.

Increasing the amount of graphite per bushel of seed added into the hopper may improve metering rate with rough-textured or treated seed.

The best way to determine if the radial bean meter delivering the correct rate is to actually check population in the field. Refer to the "Checking Seed Population" section of this manual.

After determining the correct sprocket combination for your desired planting rate, be certain to plant at a speed no greater than the maximum speed shown for your sprocket combination. This will help ensure accurate planting rates.

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IMPORTANT: To prevent planting miscalculations, make field checks to be sure you are planting at the desired rate.

IMPORTANT: Replace hopper lids after hoppers have been filled. If lids are left off, dust and dirt can accumulate in the seed metering mechanism, causing excessive wear.

NOTE: Using liquid hopper applied seed treatments which leave a wet coating on the seed is not recommended.

IMPORTANT: If farmer-applied treatments are used, be sure to follow the chemical manufacturers recommendations carefully. Dry powder or fast drying liquid treatments are generally recommended. HIGH OIL CONTENT TREATMENTS ARE NOT RECOMMENDED.

Chemical reaction between farmer-applied seed treatments and treatments commercially applied to seed can cause the seed treatments to become sticky. Certain temperature and humidity levels can further complicate material compatibility. Treatments that adhere to the radial bean meter components can cause reduced population and spacing control.

Check with your chemical and seed supplier for treatment compatibility.

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