Great Plains 3000 User Manual

Great Plains Mfg., Inc.

Manufacturing, Inc.

Seed and Small Seeds Rate
Charts

The following pages are to assist in the proper setting of seeding rates
for the 2700 and 3000 Three-Point drill. The rates indicated in the
charts are approximate values. To assure the most accurate seeding
rate it is recommended that the drill be calibrated for the desired seed
at the time of planting.

© Copyright 2010 Printed

9/9/2010

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2

Table of Contents

Seeding Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Change Drive Sprockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

To change the drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Set Seed-Rate Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Position Seed-Cup Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Check Seeding Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Small Seeds Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Seed Rate Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Small Seeds Attachment Seed Rate Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Great Plains Mfg., Inc.

118-365B 9/9/2010

Great Plains Mfg., Inc.

Seeding Rate

Calibrating the seeding rate requires four steps: arranging
the drive sprockets, setting the seed-rate adjustment han­dle, positioning the seed-cup door, and checking the
seeding rate.

Refer to the seed-rate charts starting on page 6. These
charts list the proper sprocket sizes and seed-rate-handle
settings for various seeds and seeding rates.

The seed-rate charts are based on cleaned, untreated
seed of average size and test weight. The rates are based
on 9.5L x 15 rib implement tires. Many factors will affect
seeding rates including foreign material, seed treatment,
seed size, field conditions, tire pressure and test weight.
Minor adjustments likely will be needed. Set and check
the seeding rate using the procedures below, then re-ad­just the rate as necessary.

Before setting the seeding rate, rotate the drive gauge
wheel to see that seed cups and drive are working prop­erly and free from foreign material.

Change Drive Sprockets

Refer to Figure 1

3

Refer to the seed-rate charts for the correct drive
type–1, 1A, 2 or 2A.

To change the drive type

Refer to Figure 2

1. Loosen the idler-arm bolts and remove chains.

2. To change the double speed-change sprocket, re­move nut and turn sprocket over.

16400

Figure 1

Drive Types

Idler

Spr

oc

ket

Idler

16409

9/9/2010

Figure 2

Double Speed-Change Sprocket

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