Adjustments, Planting depth, Adjustments planting depth – Great Plains NTA3010 Operator Manual User Manual

Page 41

2014-03-26

Table of Contents

Index

160-219M-A

Great Plains Manufacturing, Inc.

Table of Contents

Index

Adjustments

To get full performance from your drill, you need an
understanding of all component operations, and many
provide adjustments for optimal field results.

The NTA3010 and NTA3510 have frame-mounted
coulters, and double-disk parallel-arm openers with
depth-controlling press wheels. This system provides
accurate depth control and seed placement over uneven
terrain. The following is an introduction to the basic seed-
ing components and how they work.

Each opener is mounted on a floating opener frame, held
parallel to the ground. Opener bodies are staggered for
easy soil flow. A spring provides the down pressure nec-
essary for opener double disks to open a seed furrow.
The spring allows openers to float down into depressions
and up over obstructions. Individual openers can be
adjusted to account for tire tracks.

Even if your planting conditions rarely change, some of
these adjustment items need periodic attention due to
normal wear.

Planting Depth

Setting nominal planting depth, and achieving it consis-
tently, is affected by multiple adjustable drill functions,
from greatest to least effect they are:

• Opener Depth (Press Wheel Height)

• Coulter Frame Height;

• Row Unit Down Pressure;

• Coulter Spring Force;

• Individual Coulter Height;

• Frame Weight (at higher pressures), and;

• Disk Blade Adjustments (as blades wear).

Adjustment

Page

The Adjustment Affects

Level Frame Side to Side

Center-vs-wing planting consistency