Great Plains 3S-3000HDF Operator Manual v2 - Manual (Page 51)

2014-02-11 Table of Contents Index 195-068M
Great Plains Manufacturing, Inc. Table of Contents Index 47
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 3S-3000HD has double-disk openers with
depth-control 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. Details are found in
the Seed Rate Manual (195-068B).
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
consistently, 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 48
Setting Drive Type 195-068B Coarse control of seeding rate
Main Box Seed Rate Handle
195-068B
Fine control of seeding rate
Position Seed Cup Doors 34 Consistent seed delivery for certain seed sizes
Setting Fertilizer Rate 48
Setting Fertilizer Drive Range
195-068B
Coarse control of application rate
Setting Fertilizer Final Drive
195-068B
Fine control of application rate
Frame Level 49 Section-to-section planting consistency
Small Seeds Rate 48 Small seeds population
Opener Frame Down-Force 50 Consistent seeding depth
Opener-Subframe Adjustment 53 Level row unit running in desired pressure range
Frame Weight 50 Achieving higher down-force settings
Row Unit Adjustments 54
Opener Height 55 Seeding depth in tire tracks
Row Unit Down Pressure (Spring) 55 Level row units and consistent seeding depth in tire tracks
Disk Blade Adjustments 56 Consistent seeding depth
Seed Firmer Adjustments 57 Consistent seed placement and coverage
Opener Depth (Press Wheel Height) 58 Seeding depth
Marker Adjustments 59 Correctly offset and visible pass marks