Liquid Herbicide Pre-Emerge Spray Attachment

The planter sprayer attachment provides the necessary equipment to mount and position the spray nozzles (not provided) behind the planter unit and the hoses and manifolds to connect to a tractor mounted sprayer system. The planter sprayer system may be used with the John Deere 220 Tractor-Mounted Sprayer or similar sprayers.

Adjust plastic tubing (B) to provide spring tension on the nozzle holder. Tension will aid in keeping nozzle in operating position when it is hit by an obstruction.

To adjust the height of the nozzle, loosen wing nut (A).

"Even" type spray tips are recommended for spraying in bands from 180 to 430 mm (7 to 17 in.) with the nozzle in the lower position as shown at right.

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The support tube may be inverted, placing the nozzle in the "up" position. Coverage in this position is from 1270 to 2285 mm (50 to 90 in.) wide when using flood type spray tips. This type of coverage is not recommended for less than 1/2 gallon per minute flow. To invert the spray assembly for flood spray, proceed as follows:

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1. Unscrew delivery hose (A) from union fitting.

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2. Unscrew union fitting (A) from tube.

3. Unscrew nozzle assembly (B) from tube.

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4. Loosen wing nut (A) and remove invert tube (B).

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5. Screw fitting (A) onto tube. (Hand tighten tube plus one-half turn only.

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6. Screw nozzle assembly (A) onto tee fitting.

7. Screw union fitting (B) onto fitting. (Hand tighten fitting plus one-half turn only.)

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8. Screw delivery hose (A) onto union fitting. (Hand tighten fitting plus one-half turn only.)

9. Screw plug (B) into bottom of tube.

Adjust plastic tubing (C) to provide spring tension on the nozzle holder. Tension will aid in keeping nozzle in operating position when it is hit by an obstruction.

1. To help you select the correct nozzle, proceed as follows:

2. Refer to the chemical label for recommended application rate.

3. Select the speed you wish to plant.

4. Select the spray band width you desire.

Use the formula below for obtaining the gallons per minute per nozzle.

IMPORTANT: Gallons per acre refers to gallons per acre of band width, not acres of ground planted.

Gallons per acre x miles per hour x spray band width = 5940 gallons per minute per nozzle.

Example: Suppose the chemical manufacturer recommended application rate is 10 gal. per acre and you wish to plant at 6 miles per hour using a spray band width of 10 in.

See your John Deere dealer for the desired nozzle.

Because delivery rate (gallons per minute) is a function of pressure, it is recommended the following application rate check be used.

Check application rate at the beginning of the season and periodically during the season because nozzle tips wear and change their flow rate.

Partially fill spray tanks with water.

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Place a quart container under a nozzle.

Turn the spray pump on and time how long it takes to fill the quart container. See the chart below for the rate of flow.

It may be necessary to adjust pump pressure to compensate for small variations between calculated and actual flow.

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