Granular Chemical Attachment

The granular chemical attachment can be used to deliver one or two different granular chemicals.

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The granular hopper (A) holds 32 kg (70 lb) of one type of chemical or 16 kg (35 lb) each of both insecticide and herbicide by using a dual chemical hopper and divider (B).

The application rate is determined by:

1. The size of the opening on the meter housing assembly.

2. The travel speed.

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The size of the opening is adjustable by turning the knobs (A) on the rear of the granular hoppers. There are 80 increments which indicate the relative application rate. The delivery rate will increase from 1 through 79. Setting 00 closes the opening completely. A fluted roller delivers the granular chemical to the adjustable opening.

The granular chemical flows through a given opening size at a nearly uniform rate regardless of rotor rpm. Therefore, SPEED has the greatest impact on application rate and resulting chemical concentration in the row.

For example, if planting speed is reduced from 9.7 to 4.8 km/h (6 to 3 mph), chemical concentration will nearly double since the delivery rate through the orifice remains nearly the same while the distance traveled in a given period of time has been cut in half. Therefore, twice as much chemical is placed on the ground due to the decrease in ground speed.

Rotor rpm will not change the chemical meter delivery rate unless the seed population is changed significantly (i.e. ± 25 per cent or more) from the original setting.

The rate charts in this section are approximate, and are based on a planting speed of 8 km/h (5 mph). They are to be used only as a guide to determine a starting point for the meter dial setting.

Always check your rate of application as outlined in this section to be sure you are getting the desired rate.

A-Knobs

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To engage the insecticide and/or herbicide drive, rotate handle (A) until spring-loaded knob engages spring pin in insecticide/herbicide drive shaft.

CAUTION: Agricultural chemicals can be dangerous. Improper selection or use can injure persons, animals, plants, soils, or other property. BE SAFE: Select the right chemical for the job. Use rubber gloves and respirator and apply the chemical with care. Follow instructions of the chemical manufacturer.

Most insecticides and herbicides readily accumulate moisture and may damage the granular attachment if allowed to remain in the hopper when the planter is not in use. Even during periods of operation, deposits of insecticide may build up in the hopper and interfere with working parts. Therefore, the hoppers should be checked every day for any material buildup and thoroughly cleaned if the planter is not to be used for a period greater than two days.

See Service section for cleaning instructions.

Use the application rate and meter setting recommended by the chemical manufacturer as a starting point for the meter dial setting.

If the meter setting is not available from the chemical manufacturer, use the charts in this section as a starting point for the meter dial setting.

IMPORTANT: Because the available chemical materials vary widely in consistency and composition, their "flow-ability" is affected by temperature and humidity conditions. It is important to calibrate each individual meter to the particular chemical being used.

To determine the application rate and starting meter setting, proceed as follows:

NOTE: Application rates greater than 8 ounces per 1000 ft at 6 miles per hour require installation of the high rate rotor in meter.

A-Handle

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