Great Plains 2S-2600HDF Operator Manual v1 - Manual (Page 53)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 49
2014-05-16 Table of Contents Index 195-440M
Frame Level
Refer to Figure 48
The 00 and 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 15).
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 73. 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 52,
• opener pivot height: all openers pivoting in same hole
at their mounts (possibly excepting rows in tire tracks)
- see page 56,
• opener press wheel height: all row units set the same -
see page 59, and;
• opener spring down-force: all row units set the same
(possibly excepting rows in tire tracks) - see page 56.
Refer to Figure 49
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.
Refer to Figure 50
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.
Figure 48
Frame & Openers Level
29131
Figure 49
Openers Too High in Front
29132
Figure 50
Openers Too Low in Front
29133