Great Plains 2S-2600HDF Operator Manual v2 - Manual (Page 50)

195-069M Table of Contents Index 2014-02-03
46 2S-2600HD Table of Contents Index Great Plains Manufacturing, Inc.
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 2S-2600HD has double-disk openers with
depth-controlling press wheels mounted on floating
opener frames. Opener bodies are staggered for easy
soil flow. All openers pivot on a common axis to maintain
consistent depth as the opener frames follow contours. A
spring provides the down pressure necessary 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.
Seed and Fertilizer Rate
Materials are applied by fluted feed meters driven by the
gauge wheels. Independent mechanisms control seed
and fertilizer application. Optional Small Seeds rate is
controlled entirely by Rate Handles.
Main Box Seed rate is controlled by adjustments for:
• Drive Type sprocket (one sprocket each gauge wheel)
• Seed Rate Handle (one handle each seed box)
• Feed Cup Door (one each seed tube)
Fertilizer rate is controlled by:
• Range sprockets (one set each fertilizer box)
• Final Driver/Driven sprockets (one set each box)
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)
• Opener Frame Down-Force,
• Row Unit Down Pressure (Spring),
• Opener Height,
• Opener-Subframe Adjustment,
• Frame Weight (at higher pressures), and;
• Disk Blade Adjustments (as blades wear).
Adjustment Page The Adjustment Affects
Setting Main Box Seed Rate 47
Setting Drive Type 48 Coarse control of seeding rate
Main Box Seed Rate Handle 49 Fine control of seeding rate
Position Seed Cup Doors 49 Consistent seed delivery for certain seed sizes
Setting Fertilizer Rate 53
Setting Fertilizer Drive Range 54 Coarse control of application rate
Setting Fertilizer Final Drive 55 Fine control of application rate
Frame Level 60 Section-to-section planting consistency
Small Seeds Rate 58 Small seeds population
Opener Frame Down-Force 62 Consistent seeding depth
Opener-Subframe Adjustment 64 Level row unit running in desired pressure range
Frame Weight 61 Achieving higher down-force settings
Row Unit Adjustments 65
Opener Height 66 Seeding depth in tire tracks
Row Unit Down Pressure (Spring) 66 Level row units and consistent seeding depth in tire tracks
Disk Blade Adjustments 67 Consistent seeding depth
Seed Firmer Adjustments 68 Consistent seed placement and coverage
Opener Depth (Press Wheel Height) 69 Seeding depth
Marker Adjustments 70 Correctly offset and visible pass marks