Exchange drive type sprocket, Locate sprocket to remove, Exchange sprocket – Great Plains YP Fertilizer Ground Drive Update Kit User Manual
Page 2: Exchange wheel output sprocket, Remove existing sprocket

Great Plains Mfg., Inc.
2
Fertilizer Ground Drive Update Kit
407-196M
04/20/2007
Exchange Drive Type Sprocket
Locate Sprocket to Remove
3.
Remove the pin from the end of the horizontal
and vertical
sprocket storage shafts, and
remove all the sprockets.
4.
Locate the existing 17-tooth sprocket:
SPKT 40C17 X 7/8 HEX BORE
If this sprocket is not on either storage shaft, check
the shaft of the upper drive chain.
The existing 17T sprocket is not re-used.
Do not place it back on a working or storage shaft.
Exchange Sprocket
5.
Select one new:
407-150H SPKT 40C13 X 7/8 HEX BORE
6.
Place the new 13T sprocket
removed sprockets back onto the storage shafts
and re-pin.
Exchange Wheel Output Sprocket
Remove Existing Sprocket
7.
Loosen bolt securing idler
and slide it to the top/
front of its track.
8.
Dismount the lower primary drive chain
CHAIN ROLLER #40 PLATED
(it is modified later before re-installation).
9.
Remove and save:
PIN COTTER 3/16 X 1 1/2 PLT
NUT HEX SLOTTED 3/4-16
10. Remove sprocket weldment:
FERT DRIVE SPKT WLMT
This part is not re-used.
11. Select one new:
12. Install new sprocket
.
Secure with nut
and cotter pin
.
Do not re-mount chain at this time.
Figure 1
Stored Sprocket Exchange
26323
U
D
B
F
R
L
1
2
52
1
52
Figure 2
Wheel Output Sprocket
26314
2
58
57
54
51
U
D
B
F
R
L
58
57
54
51
54
57