Great Plains 2525A Operator Manual - Manual (Page 36)

118-999M Table of Contents Index 2013-06-04
32 2025A/2525A Table of Contents Index Great Plains Manufacturing, Inc.
Adjustments
To get full performance from your 3-Point drill, you need
an understanding of all component operations, and many
provide adjustments for optimal field results. Some of
these have been covered earlier in this manual. Even if your planting conditions rarely change, some of
these items need periodic adjustment due to normal
wear.
Adjustment Page The Adjustment Affects
Frame height 21 Planting depth consistency
Frame level 16 Planting consistency
Manifold Pressure (values from SRM
a
) 35 Consistent seed flow and disk singulation
Planting Rate SRM
a
Refer to Seed Rate Manual
Marker Adjustments
Marker Extension 100 Intended swath spacing
Marker Chain Length Adjustment 54 Marker folding operation
Dual Marker Speed Adjustment 98 Reliable marker operation
25AP Row Unit Adjustments
Opener Depth 43 Planting depth
Row Unit Down Pressure 38 Planting depth uniformity
Row Unit Lock-Up 51 Single/twin-row operation
Row Cleaner Adjustments (Option) 40 Row preparation
Coulter Adjustments (Option) 41 Seed depth uniformity
Opener Disk Adjustments 43 Seed depth, seed-to-soil contact
Side Depth Wheels 43 Seed depth, prevents plugging
Adjusting Gauge Wheel Scrapers 45 Consistent seed furrow depth
Seed Meter Setup and Adjustment 46 Consistent seed population
Seed Inlet Shutter 46 Seed flow to meter; seed pool slope
Seed Pool Slopes 47 Minimal skips and doubles
Seed Disk Installation 48 Correct seeding of your crop and population
Row Shut-Off 49 Alternate row spacings
Seed Firmer Adjustments (Option) 52 Seed-soil contact
Press Wheel Adjustment 54 Effective soil coverage
Speed Sensor Gap (Option) 97
a. SRM: Seed Rate Manual (118-999B)