Rate Check—Method One

  1. Make all adjustments as shown on rate chart for seed or fertilizer to be checked.

  2. Fill box level-full in field, then pull drill a short distance to settle seed or fertilizer. Refill box exactly level-full.

  3. Mark drive wheel and drill specified number of wheel revolutions (see chart below) to obtain one hectare (acre).

  4. Carefully weigh seed or fertilizer required to refill box level-full.

  5. Compare weight of seed or fertilizer required to fill box with predetermined rate.

  6. Adjust seed shifter index setting (or fertilizer gear case) to compensate for any variation between weight desired and amount actually drilled. Adjust feed rates accordingly.

    4.6 m (15 ft.) Drill

    Drive Tire Size

    Revolutions/Hectare

    Revolutions/Acre

    9.5L x 14 8PR

    946

    383

    11L x 15 8PR

    897

    363

    12.5L x 15 8PR

    847

    343

    6.1 m (20 ft.) Drill

    Drive Tire Size

    Revolutions/Hectare

    Revolutions/Acre

    9.5L x 14 8PR

    709

    287

    11L x 15 8PR

    672

    272

    12.5L x 15 8PR

    635

    257

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