Great Plains 3000 Material Rate - Manual (Page 4)

118-365B 9/9/2010
Great Plains Mfg., Inc.
4
Refer to Figure 3
3. To change the jackshaft sprocket, remove the set
screws and slide the sprockets so the correct-sized
sprockets are aligned. Reinsert set screws.
Refer to Figure 4
4. Shorten or lengthen chains as necessary and reinstall
chains. Be sure chain is installed with the chain con-
nector link retainer towards the centerline and the clip
opening (split end) is facing the opposite way of the
chain travel. Move the idler arms into chains. See Fig-
ure 4 for correct chain slack.
Set Seed-Rate Handle
Refer to Figure 5
5. The position the handle for each drill box to the setting
indicated on the chart. One handle is shown. To adjust
the handles, loosen the wing nut under the handles
and slide until the indicator lines up with the correct
setting.
1/2 In.
3/4 In.
Figure 3
Jackshaft Sprocket
Figure 4
Chain Slack
Figure 5
Seed-Rate Handle
16412
12927
16409