M0188-01Model 3000
TM
Machine Operation
2-10 Rev. 6/11
Seed planting rate charts are based on the standard rate drive using a 17 tooth sprocket unless otherwise specified.
NOTE: Half rate (2 to 1) drive is recommended only when desired population falls below that on planting rate
charts.
Replacing the standard 17 tooth drive sprocket located on the inner side of the top transmission shaft, with the 34
tooth half rate (2 to 1) drive reduction sprocket reduces planter transmission speed and planting and application rates
by approximately 50%.
NOTE: Do a field check after each sprocket combination adjustment to make sure you are planting at the
desired rate.
Seed rate transmissions allow simple, rapid changes of sprockets to obtain
desired planting population. By removing lynch pins on hexagon shafts,
sprockets can be interchanged with those from the sprocket storage rod
bolted to the transmission.
Chain tension is controlled by a spring-loaded dual-sprocket idler. The idler
assembly is equipped with an easy-release idler arm to remove spring
tension for replacing sprockets.
Planting rate charts in the Seed Meter Operation section will aid you in
selecting correct sprocket combinations.
Driven sprocket
Drive sprocket
Idler
SEED RATE TRANSMISSION ADJUSTMENT
STANDARD AND HALF RATE (2 TO 1) DRIVES
Seed rate transmission chain tension
Old style transmission
Tension release arm
Rate drive
sprocket
New style transmission
Tension release arm
Rate drive
sprocket
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