Great Plains 3S-3000HDF Operator Manual v1 - Manual (Page 52)

48 3S-3000/F/HD/HDF Table of Contents Index Great Plains Manufacturing, Inc.
195-441M Table of Contents Index 2014-07-01
Frame Level
Refer to Figure 42
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 17).
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 52,
• 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 43
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 44
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.
FigureSpacer
Figure 42
Frame & Openers Level
29131
FigureSpacer
Figure 43
Openers Too High in Front
29132
FigureSpacer
Figure 44
Openers Too Low in Front
29133