Great Plains 3N4010HDA Operator Manual - Manual (Page 37)

2013-09-24 Table of Contents Index 196-444M
Great Plains Manufacturing, Inc. Table of Contents Index 33
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 3N-4010HDA has frame-mounted or unit-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.
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)
• Row Unit Down Pressure,
• Opener Frame Height,
• Frame-Mounted Coulter Force,
• Unit-Mounted Coulter Depth Adjustment,
• Frame Weights (at higher pressures), and;
• Disk Blade Adjustments (as row unit blades wear).
Adjustment Page The Adjustment Affects
Fan Speed
29
a
a. See air cart operator’s manual for complete fan information.
Consistent seed population and minimum seed damage
Opener Frame Height 34
Frame-Mounted Coulters 34
Frame Height - Frame Mounted Coulters 34 Coulter depth and planting depth
Individual Frame-Mounted Coulter Depth 36 Rows in tracks
Frame-Mounted Coulter Force 37 Unusual conditions
Frame Height without Frame-Mounted
Coulters
38
Proper row unit operation
Frame Weights 40 Achieving higher no-till down-force settings
Marker Adjustments
Marker Extension Adjustment 21 Pass alignments with no overlap or excessive gap
Marker Disk Adjustment 49 Visibility of mark for next pass
Marker Speed 62 Efficient marker operation at turns
10HD Series Row Unit Adjustments 41
Unit-Mounted Coulter Adjustments 42
Row Unit Down Pressure 44 Consistent seeding depth in tire tracks
Disk Blade Adjustments 46 Consistent seeding depth
Seed Firmer Adjustments 47 Consistent seed placement and coverage
Opener Depth (Press Wheel Height) 48 Seeding depth
Side-to-Side Level 56 Center vs. wing planting consistency
Front-to-Back Level 57 Correct seeding depth and furrow coverage
Implement Lift Switch 60 Avoiding wasted and unplanted seed