Great Plains 9756PP Operator Manual - Manual (Page 24)

20 9322-9756PP Great Plains Manufacturing, Inc.
580-043M 02/17/2014
Treader Adjustment
Refer to Figure 11
35. Adjust the treaders
to leave the desired result. In most
cases the treader should be allowed to float and will not
require additional down pressure. The spring bolt
should be pre-set in the 3rd hole (normal position) of
treader mount bracket
.
36. To increase down pressure and make the treaders more
aggressive, the spring bolt may be moved forward to
the 2nd hole of treader mount bracket , from front. This
will also reduce transport height so you may need to
tighten the nut
at the top of the spring bolt to raise the
treaders up slightly for transport.
Treader Angle Adjustment
Refer to Figure 12
37. The treaders are designed to be run at angles of either
15 ° or 20°. 15° is the preferred setting in most instances.
To set the treader gangs to 15
°, install the 3/4 x 4 bolt
in the inside hole of treader gang tube . For 20
°,
install in outside hole of treader gang tube .
38. If plugging of the treaders occurs, they may need to be
moved back one hole in the wishbone arm assemblies.
The further back you move these the more tail heavy the
unit is. Do not move them unless absolutely necessary.
Note: Most of the extra mounting holes in the brackets are
needed to allow our treaders to be mounted on com-
petitors machines. Under most circumstances, it is not
necessary to vary the settings from the factory recom-
mended settings for our machines.
Figure 11
Treader Adjustment
43013
2
4
3
1
1
2
3
2
3
4
Figure 12
Treader Angle Adjustment
43041
1
2
1
2 1
1