Great Plains 2025P Operator Manual - Manual (Page 40)

2025P, 2020P Bedded, and
2010HDP
118-928M 8/14/2006
38
Seeding Rate
Adjusting the seeding rate requires the following:
1. adjusting drive speed range sprockets,
2. adjusting transmission sprockets,
3. preparing seed meters,
4. checking seeding rate.
Before setting the seeding rate, rotate the gauge
wheels. Check that seed meters, seed tubes and
drives are working properly and free from foreign
material.
Drive Speed Range Sprockets
Select the correct drive speed range sprockets for
your seed by referring to the Seed Rate Charts
beginning on page 104.
Refer to Figure 47
Loosen idler (1) and remove chain (2). Remove
retaining pins (3) from shafts and install speed
range sprockets as necessary.
NOTE: Make sure the correct sprockets have
been installed in the DRIVER and DRIVEN lo-
cations as shown.
Reroute chain over sprockets and idlers as
shown. Move idler into chain so chain has 1/4-
inch slack in its longest span. Tighten idler and in-
stall retaining pins.
Set the same drive range sprocket combination
on both gauge wheels.
Transmission Sprockets
To change the seeding rate, change the transmis-
sion sprocket combination. Refer to the Seed
Rate Charts beginning on page 104.
Refer to Figure 48
Loosen idler plate (1) and remove drive chain (2).
Remove lynch pins (3) from shafts and rearrange
drive and driven sprockets as necessary.
Reroute drive chain over sprockets and idlers as
shown. Move idlers into chain so chain has 1/4-
inch slack in its longest span. Tighten idlers and
install lynch pins.
Set the same transmission sprocket combination
on both gauge wheels.
Figure 47
Drive Speed Range Sprockets Adjustment
22875
1 2
3
Driven
3
Driver
Figure 48
Transmission Sprockets Adjustment
22876
1
3
3
Driver 2
Driven