Great Plains 2510HDP Material Rate - Manual (Page 5)

Great Plains Manufacturing, Inc. Main Seed Box Planting 3
12/01/2009 118-245B
Range Sprockets
Before setting the Range or Transmission, raise the drill
and rotate the gauge wheels. Check that seed meters,
seed tubes and drives are working properly and free
from foreign material.
Sprockets are identified by tooth counts, for example
“19” or “19T”, stamped on the face of the sprocket.
Examine any mounted sprockets before removing pins,
as the needed sprocket may already be mounted.
Refer to Figure 1, which depicts a right side single-wheel
ground drive, without acremeter.
Alternate sprockets are stored on shafts on the top
and side (see Figure 3) of the ground drive.
Refer to Figure 1
8.
Loosen the bolt securing the forward idler , and
slide the idler down in its slot. Remove the chain
from any sprockets to be changed. Hang the chain
on the idlers to prevent ground contact.
9. To change the DRIVING sprocket , remove the pin
securing the acremeter hex shaft adaptor , and
then the adaptor and spacer. The adaptor may have
an acremeter installed. If so, set the assembly where
it cannot fall on drill parts or the ground.
Exchange sprockets, re-install the spacer and the
adaptor. Re-pin the adaptor.
10. To change the DRIVEN sprocket , remove the pin
, the spacers and the sprocket.
Exchange sprockets, re-install spacers and re-pin.
If Transmission does not need changing, put all
loose sprockets on storage shafts and re-pin those
shafts.
Refer to Figure 2
11. Reroute chain over sprockets and idlers. Make sure
open end of chain clip faces away from direction of
chain travel (shown by gray arrows).
12. Move idler into chain so chain has 1 ⁄
4
in slack in its
longest span. Tighten idler. Re-pin all three shafts.
13. Configure other gauge wheel to match.
Note: Each gauge wheel drives half of the drill. If a chain
breaks or is removed, that drill half does not plant.
Figure 1
Range Sprockets
22875
DRIVING
DRIVEN
3
4
2
5
1
6
1
2
3
4
Figure 2
Chain Clip Orientation
26482
5
6