Great Plains 1300 13-Foot Material Rate - Manual (Page 23)

Great Plains Manufacturing, Inc. Table of Contents Metric Charts Fertilizer Rate 21
2014-03-10 Table of Contents Metric Charts 175-157B
Setting Fertilizer Drive Range
Refer to the Fertilizer Rate Chart on page 25 to find the
correct Range sprocket size for your drill’s row spacing
and target (or adjusted) application rate.
Setting High Range
Refer to Figure 12 (striped arrow shows chain direction)
High Range uses the smaller 16T sprocket .
Loosen the idler sprocket and remove chain from
driving and range sprockets ( , ).
62. Open chain at removable link. Remove and save the
13-pitch section of the chain.
63. Loosen the set screws on the driving sprocket ,
and slide it on the shaft until it is in alignment with the
small 16T High Range sprocket
.
Refer to Figure 13
64. Re-assemble and re-mount the chain. Make sure the
open ends of all chain clips face away from the
direction of chain travel (shown by the gray arrow).
65. Re-engage the idler sprocket , allowing
1 ⁄
4
inch
(6.4 mm) slack in the top chain span. Tighten set
screws on driving sprocket
.
66. If this is the final Range setting, after calibration,
repeat step through step 65 for the right drill section.
Setting Low Range
Refer to Figure 12
Low Range uses the larger 44T sprocket . If it is
already engaged by the chain, no change is necessary.
Loosen the idler sprocket and remove chain from
driving and range sprockets ( , ).
67. Re-insert the saved 13-pitch section of the chain.
68. Loosen the set screws on the driving sprocket ,
and slide it on the shaft until it is in alignment with the
large 44T Low Range sprocket
.
69. Re-assemble and re-mount the chain. Make sure the
open ends of chain clips face away from the direction
of chain travel (shown by the gray arrow).
70. Re-engage the idler sprocket , allowing
1 ⁄
4
inch
(6.4 mm) slack in the top chain span. Tighten set
screws on driving sprocket
.
71. If this is the final Range setting, after calibration,
repeat step through step 70 for the right drill section.
Figure 12
Fertilizer Drive Low Range
17052
2
4
1
3
1
2
3 1 4
3
1
2
3
Figure 13
Chain Clip Orientation
26482
4
2
3 1 4
3
4
2
3