Great Plains V-300F Operator Manual - Manual (Page 75)

11/15/2007 148-057M-A
Great Plains Manufacturing, Inc. Adjustments 71
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 V300 & V300F has hitch-mounted coulters, and dou-
ble-disk 00 Series openers with depth-controlling press
wheels. The opener gang frame is under hydraulic down-
pressure control. This system provides accurate depth
control and seed placement over uneven terrain.
Each opener is mounted on a pivoting opener frame.
Opener bodies are staggered for easy soil flow. 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 adjust for tire tracks.
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:
• Frame Leveling,
• Coulter Depth,
• Opener Depth (Press Wheel Height)
• Hydraulic Down Pressure,
• Row Unit Down Pressure (Spring),
• Frame Weights (at higher pressures), and;
• Disk Blade Adjustments (as row unit blades wear).
Even if your planting conditions rarely change, some of
these adjustment items need periodic attention due to
normal wear.
Adjustment Page The Adjustment Affects
Hitch and Coulter Adjustments
Hydraulic Hitch Adjustment 23, 24 Gang coulter depth and hitch level
Individual Coulter Height 71 Individual coulter depth
Coulter Spring 72 Consistent individual coulter depth
Lift Spacer Adjustments 21, 24 Gang coulter depth and hitch level
Hitch-Frame Adjustments 19 Level drill before making other adjustments
Frame Weights 73 Maximum available down-force
Hydraulic Down Pressure 36 Compensating for unusually light or heavy conditions
Packer Setup 28 Consistent surface conditions
Material Rate Adjustments 74 Achieving desired material application rates
Main Box Seed Rate 75 Planting from the standard seed box
Small Seeds Rate 80 Planting from the optional small seeds attachment
Fertilizer Rate 83 Applying material from aft section of main box (V300F only)
Row Unit Adjustments 89
Row Unit Down Pressure (Spring) 90 Consistent seeding depth in tire tracks
Disk Blade Adjustments 91 Consistent seeding depth
Disk Scraper Adjustments 91 Consistent furrow
Seed Firmer Adjustments 92 Consistent seed placement and coverage
Opener Depth (Press Wheel Height) 93 Seeding depth
Wing Marker Adjustments
Marker Extension Adjustment 25 Pass alignments with no overlap or excessive gap
Dual Marker Disk Setup 26, 27 Visibility of mark for next pass
Dual Marker Speed 26 Efficient marker operation at turns
Tramline Marker Adjustments 27 Visible mark for subsequent pre-emergence applications
Harrow 29 Even residue distribution