Great Plains NTA3010 Operator Manual - Manual (Page 41)

2014-03-26 Table of Contents Index 160-219M-A
Great Plains Manufacturing, Inc. Table of Contents Index 37
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 19 Center-vs-wing planting consistency
Level Frame Front to Rear 20 Correct seeding depth and furrow coverage
Implement Lift Switch Adjustment 38 Avoiding wasted and unplanted seed
Coulter Frame Height 39 Seeding depth
Individual Coulter Height 40 Compensating for tire tracks
Coulter Spring Force 40 Compensating for unusually light or heavy conditions
Frame Weight 41 Achieving higher down-force settings
Weight Transfer 42 Equal seeding depth under wings and center section
10 Series Row Unit Adjustments 43
Row Unit Down Pressure 44 Consistent seeding depth in tire tracks
Disk Blade Adjustments 45 Consistent seeding depth
Disk Scraper Adjustments 46 Consistent furrow
Seed Firmer Adjustments 47 Consistent seed placement and coverage
Opener Depth (Press Wheel Height) 48 Seeding depth
Fan Speed 32
a
a. See air cart operator’s manual for complete fan information.
Consistent seed population and minimum seed damage