Ag Leader Versa DirectCommand Stepper Seed Control Quick Reference Guides - Manual (Page 2)

2
Stepper Seed Control
Quick Reference Guide
2006003-ENG Rev A
29 28 812
18 19 342
Driven/Drive 1 X Driven/Drive 2 = Gear Ratio
2.3743
Planter Drive
Sprocket
Seed Rate
Motor
Seed Meter
Shaft
Planter Drive
Shaft
Gear Ratio
X = =
X =
Seed Rate Motor
(Drive) 18 Tooth
Sprocket
Planter Drive
Shaft Sprocket
(Driven) 29 Tooth
Sprocket
Drive
Ratio
1
Drive Ratio 2
Planter Drive
Shaft Sprocket
(Drive/Input) 19
Tooth Sprocket
Planter Drive Shaft
Sprocket (Driven/
Output) 28 Tooth
Sprocket
Figure 2: Calculating gear ratio of shaft drive meters.
29 28 812
18 19 342
Driven/Drive 1 X Driven/Drive 2 = Gear Ratio
2.3743
Planter Drive
Sprocket
Seed Rate
Motor
Seed Meter
Shaft
Planter Drive
Shaft
Gear Ratio
X = =
X =
Seed Rate
Motor (Drive)
18-tooth
sprocket
Planter Drive Shaft
Sprocket (Driven)
29-tooth sprocket
Drive
Ratio 1
Drive
Ratio 2
Planter Drive Shaft
Sprocket (Drive)
19-tooth sprocket
Planter Drive Shaft
Sprocket (Driven)
28-tooth sprocket
Figure 1: Calculating gear ratio of chain drive meters.
Calculating Gear Ratio
Drive Ratio 2
Planter Brand Driven Drive
Case IH Planters 2 1
John Deere Planters 3 2
White Planters 11 5
Note: These values are for the shaft only. Drive/Driven
value between the Seed Rate Motor and Planter
Drive Sprocket must still be determined.
If determining shaft ratios for any shaft not listed in the table above, rotate input shaft (driver) 10 times. Count how many
times the output (driven) shaft turns. Divide number of turns of the input shaft by the number of turns of the output shaft.
input shaft revolutions
output shaft revolutions
Divide number of turns of the input shaft by the number of turns of the output shaft.