GREAT PLAINS 3S-3000HD, Operator'S Manual

Page: 53 / 116

Great Plains Manufacturing, Inc.
Table of Contents Index Adjustments 49
2019-03-12
Table of Contents Index
195-068M
Frame Level
Refer to Figure 44
The 00HD Series openers are designed to produce
optimal results when the opener frames are level with the
ground. Operating with drill frame level is also
recommended, and this is set by hitch height (page 16).
If planting depth is not as desired on just one or two drill
sections, first check the setup items for “ Leveling the
Drill ” on page 74. Then check and adjust the following
items:
• opener sub-frame adjustment: all gauge wheel trun-
nions in same frame pivot holes - see “ Opener-Sub-
frame Adjustment ” on page 53,
• opener pivot height: all openers pivoting in same hole
at their mounts (possibly excepting rows in tire tracks)
- see page 55,
• opener press wheel height: all row units set the same -
see page 58, and;
• opener spring down-force: all row units set the same
(possibly excepting rows in tire tracks) - see page 55.
Refer to Figure 45
This photograph illustrates openers too high in front.
Increase hydraulic pressure and/or lengthen opener
springs.
Check sub-frame pivot in use at higher pressures.
FigureSpacer
Refer to Figure 46
This photograph illustrates openers too low in front, also
known as “bulldozing”. Decrease hydraulic pressure
and/or shorten opener springs.
Check sub-frame pivot if pressures have recently been
reduced.
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Figure 44
Frame & Openers Level
29131
FigureSpacer
Figure 45
Openers Too High in Front
29132
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Figure 46
Openers Too Low in Front
29133