Great Plains 2525P Material Rate - Manual (Page 5)

Great Plains Mfg., Inc.
3
03/23/2010 118-231B
Sprockets
Sprockets control seed rate only for singulating, volu-
metric and finger pick-up meters. Small seed (feeder
cup) rate is independent of these sprockets.
Drive Speed Range Sprockets
Select the correct drive speed range sprockets for your
seed by referring to the Seed Rate Charts beginning
on page 4.
Refer to Figure 1
Loosen idler and remove chain . Remove retain-
ing pins from shafts and install speed range sprock-
ets as necessary.
Note: Make sure the correct sprockets have been in-
stalled in the DRIVER and DRIVEN loca-
tions as shown.
Reroute chain over sprockets and idlers as shown.
Move idler into chain so chain has
1 ⁄
4
in slack in its
longest span. Tighten idler and install retaining pins.
Set the same drive range sprocket combination on
both gauge wheels.
Transmission Sprockets
To change the seeding rate, change the transmission
sprocket combination. Refer to the Seed Rate Charts
beginning on page 4. Note which sprocket is Driving
and which is Driven
.
Refer to Figure 2
Loosen idler plate and remove drive chain .
Remove lynch pins 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
in slack
in its longest span. Tighten idlers and install lynch
pins.
Set the same transmission sprocket combination on
both gauge wheels.
Figure 1
Drive Speed Range Sprockets
18277
5
2
3
1
4
3
1 2
3
4 5
Figure 2
Transmission Sprockets
18278
3
1
5
4
2
5
1
2
3 4
5