GREAT PLAINS NTA3007HD, Operator'S Manual

Page: 103 / 178

NTA907HD and NTA3007HD Table of Contents Index Adjustments
Great Plains | 166-207M | 02/26/2019 Table of Contents Index 97
Opener Depth (Press Wheel Height)
Refer to Figure 106
Set opener seeding depth by adjusting press-wheel
height .
To adjust, first raise openers slightly, then lift and slide
T handles
on top of openers Adjust all press wheels to
the same height.
•
Each increment of the handle adjusts the seeding
depth by approximately 6.3mm
1

4
in). The range is
approximately 0-8.9cm (0 to 3
1

2
in) seeding depth.
•
For more shallow seeding, slide T handles forward
toward implement.
•
For deeper seeding, slide T handles backward
away from implement.
If press wheels are lifting off ground, increase hydraulic
down pressure.
If press wheels are digging into ground, reduce hydraulic
down pressure.
Marker Adjustments
Review “ Marker Safety Information ” on page 60 before
adjusting markers. There are four operating adjustments
for markers:
•
Disk Angle
Even if your row spacing rarely changes, you may
need to adjust disk angle for soil conditions and
planting speed.
•
Marker Extension
(in “
Appendix B - Initial Setup ”, page 162)
Once set for a specific row spacing, this only needs
periodic checking to ensure the clamp is secure.
Figure 106
Adjusting 07HD Opener Depth
26441
1
2
B
F
1
2
2
F
B
You may be injured if hit by a folding or unfolding marker.
Markers may fall quickly and unexpectedly if the hydraulics
fail. Never allow anyone near the drill when folding or
unfolding the markers.