Great Plains YP1625 Operator Manual - Manual (Page 48)

401-226M-A 03/12/2012
44 YP1225 and YP1625 Great Plains Manufacturing, Inc.
Adjustments
To get full performance from your Planter, you need an
understanding of all component operations, and many
provide adjustments for optimal field results. Some of
these are 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
Tongue Height 16 Correct draft load to tractor
Frame Leveling 126 Planting consistency
Wing Alignment 127 Correct and consistent row tracking
Clutch Lock-Up 40 Temporary operation with a failed clutch
Fan Speed 39 Optimal seed flow to meters
Fan Butterfly Valve 50 Compensating for tractor hydraulics
Planting Rate
Ground Drive Sprockets 45 Meter rpm (seed delivery to seed tube)
Ground Drive Contact Wheel 46 Consistent meter rpm
Hydraulic Drive - Refer to Planter Seed Rate manual
Marker Adjustments
Marker Extension 129 Swath alignment
Disk Angle and Orientation 49 Visibility of mark
Marker Speed Adjustment 49 Reliable marker operation
Height Switch Adjustment 50 Correct off/on state of meter drive
Fertilizer Adjustments (Option)
Fertilizer Rate 48 Refer to Planter Seed Rate manual
Fertilizer Relief Valve SRM Refer to Planter Seed Rate manual
Fertilizer Orifice Selection SRM Refer to Planter Seed Rate manual
Frame-Mounted Row Accessories (Options)
Terra-Tine Row Cleaners 51 Row preparation
Coulters 52 Row pre-furrow depth and trash cutting
Vantage I Fertilizer Delivery 52 Fertilizer placement
25 Series Row Unit Adjustments
Row Unit Down Pressure 54 Planting depth uniformity
Row Unit Lock-Up 56 Single/twin-row operation
Row Cleaner Adjustments (Option) 58 Row preparation
Coulter Adjustments (Option) 59 Row pre-furrow depth
Row-Unit Opener Adjustments 60 Seed depth, spacing, coverage
Side Depth Wheels 61 Seed depth
Adjusting Gauge Wheel Scrapers 62 Consistent seed furrow depth
Seed Meter Setup and Adjustment 63 Consistent seed population
Seed Firmer Adjustments (Option) 70 Seed-soil contact
Press Wheel Adjustment 71 Effective soil coverage
Monitor Adjustments - Refer to Seed Monitor manual